mirror of https://github.com/dapr/quickstarts.git
Fixes some Go samples (#782)
* Fixes service invocation Go samples Signed-off-by: ItalyPaleAle <43508+ItalyPaleAle@users.noreply.github.com> * Fixes + updates to the pubsub sdk apps too Signed-off-by: ItalyPaleAle <43508+ItalyPaleAle@users.noreply.github.com> * More updates Signed-off-by: ItalyPaleAle <43508+ItalyPaleAle@users.noreply.github.com> --------- Signed-off-by: ItalyPaleAle <43508+ItalyPaleAle@users.noreply.github.com>
This commit is contained in:
Alessandro (Ale) Segala
GitHub
parent
332ac444a4
commit
b91d817ca5
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@ -1,39 +1,23 @@
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# Dapr pub/sub
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In this quickstart, you'll create a publisher microservice and a subscriber microservice to demonstrate how Dapr enables a publish-subcribe API. The publisher generates messages for a specific topic, while subscribers listen for messages on specific topics.
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In this quickstart, you'll create a publisher microservice and a subscriber microservice to demonstrate how Dapr enables a publish-subcribe pattern. The publisher generates messages for a specific topic, while the subscriber listen for messages in specific topics.
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Visit [this](https://docs.dapr.io/developing-applications/building-blocks/pubsub/) link for more information about Dapr and Pub-Sub.
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Check out the documentation about [Dapr pubsub](https://docs.dapr.io/developing-applications/building-blocks/pubsub/) for more details.
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> **Note:** This example leverages HTTP `requests` only. If you are looking for the example using the Dapr Client SDK (recommended) [click here](../sdk/).
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> **Note:** This example leverages HTTP `requests` only. You can find an example of using the Dapr Client SDK (recommended) in the [`sdk` folder](../sdk/).
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This quickstart includes one publisher:
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This quickstart includes one publisher: Go client message generator `checkout`.
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- Go client message generator `checkout`
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And one subscriber:
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- Go subscriber `order-processor`
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And one subscriber: Go subscriber `order-processor`.
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### Run Go message subscriber with Dapr
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1. Navigate to the directory and install dependencies:
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<!-- STEP
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name: Build Go file
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-->
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```bash
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cd ./order-processor
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go build .
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```
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<!-- END_STEP -->
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2. Run the Go subscriber app with Dapr:
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1. Run the Go subscriber app with Dapr in the `order-processor` folder:
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<!-- STEP
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name: Run Go subscriber
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expected_stdout_lines:
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- '== APP == Subscriber received: {"orderId":10}'
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- '== APP == Subscriber received: {"orderId":10}'
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- "Exited App successfully"
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expected_stderr_lines:
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output_match_mode: substring
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@ -41,28 +25,22 @@ background: true
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sleep: 15
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-->
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```bash
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cd ./order-processor
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dapr run --app-port 6001 --app-id order-processor --app-protocol http --dapr-http-port 3501 --components-path ../../../components -- go run .
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dapr run \
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--app-port 6001 \
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--app-id order-processor \
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--app-protocol http \
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--dapr-http-port 3501 \
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--components-path ../../../components \
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-- go run .
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```
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<!-- END_STEP -->
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### Run Go message publisher with Dapr
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1. Navigate to the directory and install dependencies:
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<!-- STEP
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name: Build Go file
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-->
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```bash
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cd ./checkout
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go build .
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```
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<!-- END_STEP -->
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2. Run the Go publisher app with Dapr:
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1. Run the Go publisher app with Dapr in the `checkout` folder:
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<!-- STEP
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name: Run Go publisher
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@ -75,14 +53,20 @@ output_match_mode: substring
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background: true
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sleep: 15
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-->
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```bash
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cd ./checkout
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dapr run --app-id checkout-http --app-protocol http --dapr-http-port 3500 --components-path ../../../components -- go run .
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dapr run \
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--app-id checkout-http \
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--dapr-http-port 3500 \
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--components-path ../../../components \
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-- go run .
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```
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<!-- END_STEP -->
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To stop:
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```bash
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dapr stop --app-id checkout-http
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dapr stop --app-id order-processor
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@ -10,33 +10,38 @@ import (
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"time"
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)
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const PUBSUB_NAME = "orderpubsub"
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const PUBSUB_TOPIC = "orders"
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const pubsubComponentName = "orderpubsub"
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const pubsubTopic = "orders"
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func main() {
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daprHost := "http://localhost"
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if value, ok := os.LookupEnv("DAPR_HOST"); ok {
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daprHost = value
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daprHost := os.Getenv("DAPR_HOST")
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if daprHost == "" {
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daprHost = "http://localhost"
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}
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daprHttpPost := "3500"
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if value, ok := os.LookupEnv("DAPR_HTTP_PORT"); ok {
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daprHttpPost = value
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daprHttpPort := os.Getenv("DAPR_HTTP_PORT")
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if daprHttpPort == "" {
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daprHttpPort = "3500"
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}
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client := http.Client{
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Timeout: 15 * time.Second,
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}
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for i := 1; i <= 10; i++ {
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order := `{"orderId":` + strconv.Itoa(i) + `}`
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client := http.Client{}
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req, err := http.NewRequest("POST", daprHost+":"+daprHttpPost+"/v1.0/publish/"+PUBSUB_NAME+"/"+PUBSUB_TOPIC, strings.NewReader(order))
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req, err := http.NewRequest("POST", daprHost+":"+daprHttpPort+"/v1.0/publish/"+pubsubComponentName+"/"+pubsubTopic, strings.NewReader(order))
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if err != nil {
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log.Fatal(err.Error())
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os.Exit(1)
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}
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// Publish an event using Dapr pub/sub
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if _, err = client.Do(req); err != nil {
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res, err := client.Do(req)
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if err != nil {
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log.Fatal(err)
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}
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defer res.Body.Close()
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fmt.Println("Published data: ", order)
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fmt.Println("Published data:", order)
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time.Sleep(1000)
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}
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@ -1,3 +1,3 @@
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module dapr_example
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module checkout_example
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go 1.18
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go 1.19
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@ -31,11 +31,11 @@ func getOrder(w http.ResponseWriter, r *http.Request) {
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}
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jsonBytes, err := json.Marshal(jsonData)
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if err != nil {
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log.Fatal("Error in reading the result obj")
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log.Fatal(err.Error())
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}
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_, err = w.Write(jsonBytes)
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if err != nil {
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log.Fatal("Error in writing the result obj")
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log.Fatal(err.Error())
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}
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}
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@ -47,33 +47,36 @@ func postOrder(w http.ResponseWriter, r *http.Request) {
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var result Result
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err = json.Unmarshal(data, &result)
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if err != nil {
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log.Fatal(err)
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log.Fatal(err.Error())
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}
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fmt.Println("Subscriber received: ", string(result.Data))
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fmt.Println("Subscriber received:", string(result.Data))
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obj, err := json.Marshal(data)
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if err != nil {
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log.Fatal("Error in reading the result obj")
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log.Fatal(err.Error())
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}
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_, err = w.Write(obj)
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if err != nil {
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log.Fatal("Error in writing the result obj")
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log.Fatal(err.Error())
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}
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}
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func main() {
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appPort := "6001"
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if value, ok := os.LookupEnv("APP_PORT"); ok {
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appPort = value
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appPort := os.Getenv("APP_PORT")
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if appPort == "" {
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appPort = "6001"
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}
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r := mux.NewRouter()
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// Handle the /dapr/subscribe route which Dapr invokes to get the list of subscribed endpoints
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r.HandleFunc("/dapr/subscribe", getOrder).Methods("GET")
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// Dapr subscription routes orders topic to this route
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r.HandleFunc("/orders", postOrder).Methods("POST")
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if err := http.ListenAndServe(":"+appPort, r); err != nil {
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// Start the server; this is a blocking call
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err := http.ListenAndServe(":"+appPort, r)
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if err != http.ErrServerClosed {
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log.Panic(err)
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}
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}
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@ -1,5 +1,5 @@
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module dapr_example
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module order_processor_example
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go 1.18
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go 1.19
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require github.com/gorilla/mux v1.8.0
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@ -1,39 +1,23 @@
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# Dapr pub/sub
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In this quickstart, you'll create a publisher microservice and a subscriber microservice to demonstrate how Dapr enables a publish-subcribe pattern. The publisher generates messages of a specific topic, while subscribers listen for messages of specific topics.
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In this quickstart, you'll create a publisher microservice and a subscriber microservice to demonstrate how Dapr enables a publish-subcribe pattern. The publisher generates messages for a specific topic, while the subscriber listen for messages in specific topics.
|
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|
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Visit [this](https://docs.dapr.io/developing-applications/building-blocks/pubsub/) link for more information about Dapr and Pub-Sub.
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Check out the documentation about [Dapr pubsub](https://docs.dapr.io/developing-applications/building-blocks/pubsub/) for more details.
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> **Note:** This example leverages the Dapr client SDK. If you are looking for the example using only HTTP `requests` [click here](../http).
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> **Note:** This example leverages the Dapr Client SDK. You can find an example using plain HTTP in the [`http` folder](../http/).
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This quickstart includes one publisher:
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This quickstart includes one publisher: Go client message generator `checkout`
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- Go client message generator `checkout`
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And one subscriber:
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- Go subscriber `order-processor`
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And one subscriber: Go subscriber `order-processor`
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### Run Go message subscriber with Dapr
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1. Navigate to the directory and install dependencies:
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<!-- STEP
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name: Build Go file
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-->
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```bash
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cd ./order-processor
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go build .
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```
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<!-- END_STEP -->
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2. Run the Go subscriber app with Dapr:
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1. Run the Go subscriber app with Dapr in the `order-processor` folder:
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<!-- STEP
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name: Run Go subscriber
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expected_stdout_lines:
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- '== APP == Subscriber received: map[orderId:10]'
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- '== APP == Subscriber received: map[orderId:10]'
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- "Exited App successfully"
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expected_stderr_lines:
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output_match_mode: substring
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@ -43,45 +27,46 @@ sleep: 15
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```bash
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cd ./order-processor
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dapr run --app-port 6002 --app-id order-processor-sdk --app-protocol http --dapr-http-port 3501 --components-path ../../../components -- go run .
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dapr run \
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--app-port 6002 \
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--app-id order-processor-sdk \
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--app-protocol http \
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--dapr-http-port 3501 \
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--components-path ../../../components \
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-- go run .
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```
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<!-- END_STEP -->
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### Run Go message publisher with Dapr
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1. Navigate to the directory and install dependencies:
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<!-- STEP
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name: Build Go file
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-->
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```bash
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cd ./checkout
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go build .
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```
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<!-- END_STEP -->
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2. Run the Go publisher app with Dapr:
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1 Run the Go publisher app with Dapr in the `checkout` folder:
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<!-- STEP
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name: Run Go publisher
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expected_stdout_lines:
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- '== APP == Published data: {"orderId":1}'
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- '== APP == Published data: {"orderId":2}'
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- '== APP == Published data: {"orderId":1}'
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- '== APP == Published data: {"orderId":2}'
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- "Exited App successfully"
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expected_stderr_lines:
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output_match_mode: substring
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background: true
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sleep: 15
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-->
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```bash
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cd ./checkout
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dapr run --app-id checkout-sdk --app-protocol http --dapr-http-port 3500 --components-path ../../../components -- go run .
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dapr run \
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--app-id checkout-sdk \
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--dapr-http-port 3500 \
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--components-path ../../../components \
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-- go run .
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```
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<!-- END_STEP -->
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To stop:
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```bash
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dapr stop --app-id checkout-sdk
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dapr stop --app-id order-processor-sdk
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@ -9,27 +9,29 @@ import (
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dapr "github.com/dapr/go-sdk/client"
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)
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var (
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PUBSUB_NAME = "orderpubsub"
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PUBSUB_TOPIC = "orders"
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const (
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pubsubComponentName = "orderpubsub"
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pubsubTopic = "orders"
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)
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func main() {
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// Create a new client for Dapr using the SDK
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client, err := dapr.NewClient()
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if err != nil {
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panic(err)
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}
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defer client.Close()
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ctx := context.Background()
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// Publish events using Dapr pubsub
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for i := 1; i <= 10; i++ {
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order := `{"orderId":` + strconv.Itoa(i) + `}`
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// Publish an event using Dapr pub/sub
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if err := client.PublishEvent(ctx, PUBSUB_NAME, PUBSUB_TOPIC, []byte(order)); err != nil {
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err := client.PublishEvent(context.Background(), pubsubComponentName, pubsubTopic, []byte(order))
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if err != nil {
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panic(err)
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}
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fmt.Println("Published data: ", order)
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fmt.Println("Published data:", order)
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time.Sleep(1000)
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}
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|
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Binary file not shown.
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@ -1,11 +1,10 @@
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module dapr_example
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module checkout_sdk_example
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go 1.18
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go 1.19
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require github.com/dapr/go-sdk v1.5.0
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require github.com/dapr/go-sdk v1.6.0
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require (
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github.com/dapr/dapr v1.8.0 // indirect
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github.com/golang/protobuf v1.5.2 // indirect
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github.com/pkg/errors v0.9.1 // indirect
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golang.org/x/net v0.0.0-20220621193019-9d032be2e588 // indirect
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|
|
|
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|
|
@ -11,10 +11,8 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
|
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github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
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github.com/dapr/dapr v1.8.0 h1:ZAAoBe6wuFp7k4tIHB7ajZXVTtGeDeVqIPrldzo3dF0=
|
||||
github.com/dapr/dapr v1.8.0/go.mod h1:yAsDiK5oecG0htw2S8JG9RFaeHJVdlTfZyOrL57AvRM=
|
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github.com/dapr/go-sdk v1.5.0 h1:OVkrupquJEOL1qRtwKcMVrFKYhw4UJQvgOJNduo2VxE=
|
||||
github.com/dapr/go-sdk v1.5.0/go.mod h1:Cvz3taCVu22WCNEUbc9/szvG/yJxWPAV4dcaG+zDWA4=
|
||||
github.com/dapr/go-sdk v1.6.0 h1:jg5A2khSCHF8bGZsig5RWN/gD0jjitszc2V6Uq2pPdY=
|
||||
github.com/dapr/go-sdk v1.6.0/go.mod h1:KLQBltoD9K0w5hKTihdcyg9Epob9gypwL5dYcQzPro4=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
|
||||
|
|
@ -51,6 +49,8 @@ github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
|
|||
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
|
||||
github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
|
||||
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
|
||||
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
|
|
@ -140,8 +140,8 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
|
|||
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
||||
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
|
||||
google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
|
|
|
|||
|
|
@ -18,21 +18,26 @@ var sub = &common.Subscription{
|
|||
}
|
||||
|
||||
func main() {
|
||||
appPort := "6002"
|
||||
if value, ok := os.LookupEnv("APP_PORT"); ok {
|
||||
appPort = value
|
||||
appPort := os.Getenv("APP_PORT")
|
||||
if appPort == "" {
|
||||
appPort = "6002"
|
||||
}
|
||||
|
||||
// Create the new server on appPort and add a topic listener
|
||||
s := daprd.NewService(":" + appPort)
|
||||
if err := s.AddTopicEventHandler(sub, eventHandler); err != nil {
|
||||
err := s.AddTopicEventHandler(sub, eventHandler)
|
||||
if err != nil {
|
||||
log.Fatalf("error adding topic subscription: %v", err)
|
||||
}
|
||||
if err := s.Start(); err != nil && err != http.ErrServerClosed {
|
||||
|
||||
// Start the server
|
||||
err = s.Start()
|
||||
if err != nil && err != http.ErrServerClosed {
|
||||
log.Fatalf("error listenning: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func eventHandler(ctx context.Context, e *common.TopicEvent) (retry bool, err error) {
|
||||
fmt.Println("Subscriber received: ", e.Data)
|
||||
fmt.Println("Subscriber received:", e.Data)
|
||||
return false, nil
|
||||
}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,11 +1,10 @@
|
|||
module dapr_example
|
||||
module order_processor_sdk_example
|
||||
|
||||
go 1.18
|
||||
go 1.19
|
||||
|
||||
require github.com/dapr/go-sdk v1.5.0
|
||||
require github.com/dapr/go-sdk v1.6.0
|
||||
|
||||
require (
|
||||
github.com/dapr/dapr v1.8.0 // indirect
|
||||
github.com/golang/protobuf v1.5.2 // indirect
|
||||
github.com/gorilla/mux v1.8.0 // indirect
|
||||
github.com/pkg/errors v0.9.1 // indirect
|
||||
|
|
|
|||
|
|
@ -11,10 +11,8 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
|
|||
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/dapr/dapr v1.8.0 h1:ZAAoBe6wuFp7k4tIHB7ajZXVTtGeDeVqIPrldzo3dF0=
|
||||
github.com/dapr/dapr v1.8.0/go.mod h1:yAsDiK5oecG0htw2S8JG9RFaeHJVdlTfZyOrL57AvRM=
|
||||
github.com/dapr/go-sdk v1.5.0 h1:OVkrupquJEOL1qRtwKcMVrFKYhw4UJQvgOJNduo2VxE=
|
||||
github.com/dapr/go-sdk v1.5.0/go.mod h1:Cvz3taCVu22WCNEUbc9/szvG/yJxWPAV4dcaG+zDWA4=
|
||||
github.com/dapr/go-sdk v1.6.0 h1:jg5A2khSCHF8bGZsig5RWN/gD0jjitszc2V6Uq2pPdY=
|
||||
github.com/dapr/go-sdk v1.6.0/go.mod h1:KLQBltoD9K0w5hKTihdcyg9Epob9gypwL5dYcQzPro4=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
|
||||
|
|
@ -54,6 +52,8 @@ github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
|
|||
github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
|
||||
github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
|
||||
github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
|
||||
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
|
||||
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
|
|
@ -143,8 +143,8 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
|
|||
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
||||
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
|
||||
google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
|
|
|
|||
|
|
@ -5,5 +5,6 @@ Dapr provides a capability for defining and applying fault tolerance resiliency
|
|||
In this Quickstart, you will observe Dapr resiliency capabilities by simulating a system failure. You have the option of using the service invocation quickstarts to demonstrate Dapr resiliency between service-to-service communication, or the state management quickstart to demonstrate resiliency between apps and components.
|
||||
|
||||
### Select resiliency quickstart
|
||||
|
||||
- For service-to-service resiliency, see [here](./service-to-service-resiliency.md)
|
||||
- For service to component resiliency, see [here](./service-to-component-resiliency.md)
|
||||
- For service-to-component resiliency, see [here](./service-to-component-resiliency.md)
|
||||
|
|
|
|||
|
|
@ -2,11 +2,11 @@
|
|||
|
||||
In this QuickStart, you will run a microservice application that continuously persists and retrieves state via Dapr's state management API. When operations to the state store begin to fail, Dapr resiliency policies are applied.
|
||||
|
||||
Visit [this](https://docs.dapr.io/operations/resiliency/resiliency-overview//) link for more information about Dapr resiliency.
|
||||
Visit the documentation about [Dapr resiliency](https://docs.dapr.io/operations/resiliency/resiliency-overview/) link for more information
|
||||
|
||||
This quickstart includes one service:
|
||||
|
||||
- Client service `order-processor`
|
||||
- Client service `order-processor`
|
||||
- Redis component spec `statestore.yaml`
|
||||
- Resiliency spec `resiliency.yaml`
|
||||
|
||||
|
|
@ -14,7 +14,8 @@ This quickstart includes one service:
|
|||
|
||||
1. Navigate to the app directory, install dependencies, and run the service with resiliency enabled via the config.yaml:
|
||||
|
||||
### CSharp example:
|
||||
### C# example:
|
||||
|
||||
```bash
|
||||
cd ../state_management/csharp/sdk/order-processor
|
||||
dotnet restore
|
||||
|
|
@ -23,6 +24,7 @@ dapr run --app-id order-processor --config ../config.yaml --components-path ../.
|
|||
```
|
||||
|
||||
### Go example:
|
||||
|
||||
```bash
|
||||
cd ../state_management/go/sdk/order-processor
|
||||
go build .
|
||||
|
|
@ -30,6 +32,7 @@ dapr run --app-id order-processor --config ../config.yaml --components-path ../.
|
|||
```
|
||||
|
||||
### Java example:
|
||||
|
||||
```bash
|
||||
cd ../state_management/java/sdk/order-processor
|
||||
mvn clean install
|
||||
|
|
@ -37,6 +40,7 @@ dapr run --app-id order-processor --config ../config.yaml --components-path ../.
|
|||
```
|
||||
|
||||
### JavaScript example:
|
||||
|
||||
```bash
|
||||
cd ../state_management/javascript/sdk/order-processor
|
||||
npm install
|
||||
|
|
@ -44,6 +48,7 @@ dapr run --app-id order-processor ../config.yaml --components-path ../../../comp
|
|||
```
|
||||
|
||||
### Python example:
|
||||
|
||||
```bash
|
||||
cd ../state_management/python/sdk/order-processor
|
||||
pip3 install -r requirements.txt
|
||||
|
|
@ -51,6 +56,7 @@ dapr run --app-id order-processor ../config.yaml --components-path ../../../comp
|
|||
```
|
||||
|
||||
### Expected output:
|
||||
|
||||
```bash
|
||||
== APP == Saving Order: { orderId: '1' }
|
||||
== APP == Getting Order: { orderId: '1' }
|
||||
|
|
@ -64,6 +70,7 @@ dapr run --app-id order-processor ../config.yaml --components-path ../../../comp
|
|||
<!-- END_STEP -->
|
||||
|
||||
### Simulate a component failure by stopping the Redis container instance
|
||||
|
||||
In a new terminal window, stop the Redis container that's running on your machine:
|
||||
|
||||
```bash
|
||||
|
|
@ -73,6 +80,7 @@ docker stop dapr_redis
|
|||
### Observe retry and circuit breaker policies are applied:
|
||||
|
||||
Policies defined in the resiliency.yaml spec:
|
||||
|
||||
```yaml
|
||||
retryForever:
|
||||
policy: constant
|
||||
|
|
@ -87,6 +95,7 @@ circuitBreakers:
|
|||
```
|
||||
|
||||
Applied policies:
|
||||
|
||||
```bash
|
||||
INFO[0006] Error processing operation component[statestore] output. Retrying...
|
||||
INFO[0026] Circuit breaker "simpleCB-statestore" changed state from closed to open
|
||||
|
|
@ -100,7 +109,7 @@ INFO[0031] Circuit breaker "simpleCB-statestore" changed state from half-open to
|
|||
docker start dapr_redis
|
||||
```
|
||||
|
||||
### Observe orders have resumed sequentially:
|
||||
### Observe orders have resumed sequentially
|
||||
|
||||
```bash
|
||||
INFO[0036] Recovered processing operation component[statestore] output.
|
||||
|
|
@ -117,6 +126,7 @@ INFO[0036] Recovered processing operation component[statestore] output.
|
|||
```
|
||||
|
||||
### Stop the app with Dapr
|
||||
|
||||
```bash
|
||||
dapr stop --app-id order-processor
|
||||
```
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
|
||||
In this QuickStart, you will run two microservice applications. One microservice (`checkout`) will continuously make Dapr service invocation requests to the other microservice (`order-processor`). When requests begin to fail, Dapr resiliency policies are applied.
|
||||
|
||||
Visit [this](https://docs.dapr.io/operations/resiliency/resiliency-overview//) link for more information about Dapr resiliency.
|
||||
Visit the documentation about [Dapr resiliency](https://docs.dapr.io/operations/resiliency/resiliency-overview/) link for more information
|
||||
|
||||
This quickstart includes one service:
|
||||
|
||||
|
|
@ -14,8 +14,10 @@ This quickstart includes one service:
|
|||
|
||||
1. Open two terminal windows. In one terminal window, navigate to the `checkout` service. In the other terminal window, navigate to the `order-processor` service. Install dependencies for each service and run both services with resiliency enabled via the config.yaml:
|
||||
|
||||
### CSharp example:
|
||||
##### Order Processor Service:
|
||||
### C# example
|
||||
|
||||
##### Order Processor Service:
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/csharp/http/order-processor
|
||||
dotnet restore
|
||||
|
|
@ -23,7 +25,8 @@ dotnet build
|
|||
dapr run --app-port 7001 --app-id order-processor --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3501 -- dotnet run
|
||||
```
|
||||
|
||||
##### Checkout Service:
|
||||
##### Checkout Service:
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/csharp/http/checkout
|
||||
dotnet restore
|
||||
|
|
@ -31,93 +34,102 @@ dotnet build
|
|||
dapr run --app-id checkout --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3500 -- dotnet run
|
||||
```
|
||||
|
||||
### Go example:
|
||||
##### Order Processor Service:
|
||||
### Go example
|
||||
|
||||
##### Order Processor Service:
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/go/http/order-processor
|
||||
go build .
|
||||
dapr run --app-port 6001 --app-id order-processor --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3501 -- go run .
|
||||
```
|
||||
|
||||
##### Checkout Service:
|
||||
##### Checkout Service:
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/go/http/checkout
|
||||
go build .
|
||||
dapr run --app-id checkout --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3500 -- go run .
|
||||
```
|
||||
|
||||
### Java example:
|
||||
##### Order Processor Service:
|
||||
### Java example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/java/http/order-processor
|
||||
mvn clean install
|
||||
dapr run --app-id order-processor --config ../config.yaml --components-path ../../../components/ --app-port 9001 --app-protocol http --dapr-http-port 3501 -- java -jar target/OrderProcessingService-0.0.1-SNAPSHOT.jar
|
||||
```
|
||||
|
||||
##### Checkout Service:
|
||||
##### Checkout Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/java/http/checkout
|
||||
mvn clean install
|
||||
dapr run --app-id checkout --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3500 -- java -jar target/CheckoutService-0.0.1-SNAPSHOT.jar
|
||||
```
|
||||
|
||||
### JavaScript example:
|
||||
##### Order Processor Service:
|
||||
### JavaScript example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/javascript/http/order-processor
|
||||
npm install
|
||||
dapr run --app-port 5001 --app-id order-processor --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3501 -- npm start
|
||||
```
|
||||
|
||||
##### Checkout Service:
|
||||
##### Checkout Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/javascript/http/checkout
|
||||
npm install
|
||||
dapr run --app-id checkout --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3500 -- npm start
|
||||
```
|
||||
|
||||
### Python example:
|
||||
##### Order Processor Service:
|
||||
### Python example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/python/http/order-processor
|
||||
pip3 install -r requirements.txt
|
||||
dapr run --app-port 8001 --app-id order-processor --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3501 -- python3 app.py
|
||||
```
|
||||
|
||||
##### Checkout Service:
|
||||
##### Checkout Service
|
||||
|
||||
```bash
|
||||
cd ../service_invocation/python/http/checkout
|
||||
pip3 install -r requirements.txt
|
||||
dapr run --app-id checkout --config ../config.yaml --components-path ../../../components/ --app-protocol http --dapr-http-port 3500 -- python3 app.py
|
||||
```
|
||||
|
||||
### Expected output:
|
||||
### Expected output
|
||||
|
||||
Once both services are running, the `order-processor` service will recieve orders from the `checkout`service continuously using Dapr's service invoke API.
|
||||
|
||||
##### `order-processor` output:
|
||||
##### `order-processor` output
|
||||
|
||||
```bash
|
||||
== APP == Order received: { orderId: 1 }
|
||||
== APP == Order received: { orderId: 2 }
|
||||
== APP == Order received: { orderId: 3 }
|
||||
```
|
||||
|
||||
### Simulate ann application failure by stopping the `order-processor` service
|
||||
### Simulate ann application failure by stopping the `order-processor` service
|
||||
|
||||
Simulate a system failure by stopping the `order-processor` service running in your second terminal window.
|
||||
|
||||
##### Windows
|
||||
```script
|
||||
CTRL + C
|
||||
```
|
||||
|
||||
##### Mac
|
||||
```script
|
||||
CMD + C
|
||||
```
|
||||
|
||||
### Observe retry and circuit breaker policies are applied:
|
||||
### Observe retry and circuit breaker policies are applied
|
||||
|
||||
Policies defined in the resiliency.yaml spec:
|
||||
|
||||
```yaml
|
||||
retryForever:
|
||||
policy: constant
|
||||
|
|
@ -131,7 +143,8 @@ circuitBreakers:
|
|||
trip: consecutiveFailures >= 5
|
||||
```
|
||||
|
||||
##### Applied policies:
|
||||
##### Applied policies
|
||||
|
||||
```bash
|
||||
INFO[0005] Error processing operation endpoint[order-processor, order-processor:orders]. Retrying...
|
||||
INFO[0025] Circuit breaker "order-processor:orders" changed state from closed to open
|
||||
|
|
@ -140,40 +153,53 @@ INFO[0030] Circuit breaker "order-processor:orders" changed state from half-open
|
|||
```
|
||||
|
||||
### Simulate the application recovering by restarting the order-processor service:
|
||||
|
||||
Simulate the `order-processor` service recovering by restarting the application using the `dapr run` command:
|
||||
|
||||
### CSharp example:
|
||||
##### Order Processor Service:
|
||||
### C# example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
dapr run --app-port 7001 --app-id order-processor --config ../config.yaml --components-path --app-protocol http --dapr-http-port 3501 -- dotnet run
|
||||
```
|
||||
|
||||
### Go example:
|
||||
##### Order Processor Service:
|
||||
### Go example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
dapr run --app-port 6001 --app-id order-processor --config ../config.yaml --components-path --app-protocol http --dapr-http-port 3501 -- go run .
|
||||
```
|
||||
|
||||
### Java example:
|
||||
##### Order Processor Service:
|
||||
### Java example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
dapr run --app-id order-processor --config ../config.yaml --components-path --app-port 9001 --app-protocol http --dapr-http-port 3501 -- java -jar target/OrderProcessingService-0.0.1-SNAPSHOT.jar
|
||||
```
|
||||
|
||||
### JavaScript example:
|
||||
##### Order Processor Service:
|
||||
### JavaScript example
|
||||
|
||||
##### Order Processor Service
|
||||
|
||||
```bash
|
||||
dapr run --app-port 5001 --app-id order-processor --config ../config.yaml --components-path --app-protocol http --dapr-http-port 3501 -- npm start
|
||||
```
|
||||
|
||||
### Python example:
|
||||
##### Order Processor Service:
|
||||
### Python example
|
||||
|
||||
##### Order Processor Service:
|
||||
|
||||
```bash
|
||||
dapr run --app-port 8001 --app-id order-processor --config ../config.yaml --components-path --app-protocol http --dapr-http-port 3501 -- python3 app.py
|
||||
```
|
||||
|
||||
### Observe orders have resumed sequentially:
|
||||
|
||||
##### `order-processor` output:
|
||||
|
||||
```bash
|
||||
== APP == Order received: { orderId: 4 }
|
||||
== APP == Order received: { orderId: 5 }
|
||||
|
|
@ -182,8 +208,8 @@ dapr run --app-port 8001 --app-id order-processor --config ../config.yaml --comp
|
|||
```
|
||||
|
||||
### Stop the apps with Dapr
|
||||
|
||||
```bash
|
||||
dapr stop --app-id order-processor
|
||||
dapr stop --app-id checkout
|
||||
```
|
||||
|
||||
|
|
|
|||
|
|
@ -1,38 +1,21 @@
|
|||
# Service Invocation
|
||||
|
||||
In this quickstart, you'll create a checkout service and an order processor service to demonstrate how to use the service invocation API. The checkout service uses Dapr's http proxying capability to invoke a method on the order processing service.
|
||||
In this quickstart, you'll create a checkout service and an order-processor service to demonstrate how to use the service invocation API. The checkout service uses Dapr's HTTP proxying capability to invoke a method on the order processing service.
|
||||
|
||||
Visit [this](https://docs.dapr.io/developing-applications/building-blocks/service-invocation/) link for more information about Dapr and service invocation.
|
||||
Check out the documentation about [service invocation](https://docs.dapr.io/developing-applications/building-blocks/service-invocation/) for more details.
|
||||
|
||||
This quickstart includes one checkout service:
|
||||
This quickstart includes one checkout service: Go client service `checkout`
|
||||
|
||||
- Go client service `checkout`
|
||||
|
||||
And one order processor service:
|
||||
|
||||
- Go order-processor service `order-processor`
|
||||
And one order processor service: Go order-processor service `order-processor`
|
||||
|
||||
### Run Go order-processor with Dapr
|
||||
|
||||
1. Open a new terminal window and navigate to `order-processor` directory:
|
||||
|
||||
<!-- STEP
|
||||
name: Build Go file
|
||||
-->
|
||||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
go build .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
|
||||
2. Run the Go order-processor app with Dapr:
|
||||
1. Run the order-processor app with Dapr in the `order-processor` folder:
|
||||
|
||||
<!-- STEP
|
||||
name: Run order-processor service
|
||||
expected_stdout_lines:
|
||||
- '== APP == Order received : {"orderId":10}'
|
||||
- '== APP == Order received: {"orderId":10}'
|
||||
- "Exited App successfully"
|
||||
expected_stderr_lines:
|
||||
output_match_mode: substring
|
||||
|
|
@ -42,46 +25,44 @@ sleep: 15
|
|||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
dapr run --app-port 6001 --app-id order-processor --app-protocol http --dapr-http-port 3501 -- go run .
|
||||
dapr run \
|
||||
--app-port 6001 \
|
||||
--app-id order-processor \
|
||||
--app-protocol http \
|
||||
--dapr-http-port 3501 \
|
||||
-- go run .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
|
||||
### Run Go checkout with Dapr
|
||||
|
||||
1. Open a new terminal window and navigate to `checkout` directory:
|
||||
|
||||
<!-- STEP
|
||||
name: Build Go file
|
||||
-->
|
||||
|
||||
```bash
|
||||
cd ./checkout
|
||||
go build .
|
||||
```
|
||||
<!-- END_STEP -->
|
||||
|
||||
2. Run the Go checkout app with Dapr:
|
||||
1. Open a new terminal window and navigate to `checkout` directory, then run the Go checkout app with Dapr:
|
||||
|
||||
<!-- STEP
|
||||
name: Run checkout service
|
||||
expected_stdout_lines:
|
||||
- '== APP == Order passed: {"orderId":1}'
|
||||
- '== APP == Order passed: {"orderId":2}'
|
||||
- '== APP == Order passed: {"orderId":1}'
|
||||
- '== APP == Order passed: {"orderId":2}'
|
||||
- "Exited App successfully"
|
||||
expected_stderr_lines:
|
||||
output_match_mode: substring
|
||||
background: true
|
||||
sleep: 15
|
||||
-->
|
||||
|
||||
|
||||
```bash
|
||||
cd ./checkout
|
||||
dapr run --app-id checkout --app-protocol http --dapr-http-port 3500 -- go run .
|
||||
dapr run \
|
||||
--app-id checkout \
|
||||
--dapr-http-port 3500 \
|
||||
-- go run .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
|
||||
To stop:
|
||||
|
||||
```bash
|
||||
dapr stop --app-id checkout
|
||||
dapr stop --app-id order-processor
|
||||
|
|
|
|||
|
|
@ -8,41 +8,44 @@ import (
|
|||
"os"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
func main() {
|
||||
var DAPR_HOST, DAPR_HTTP_PORT string
|
||||
var okHost, okPort bool
|
||||
if DAPR_HOST, okHost = os.LookupEnv("DAPR_HOST"); !okHost {
|
||||
DAPR_HOST = "http://localhost"
|
||||
daprHost := os.Getenv("DAPR_HOST")
|
||||
if daprHost == "" {
|
||||
daprHost = "http://localhost"
|
||||
}
|
||||
if DAPR_HTTP_PORT, okPort = os.LookupEnv("DAPR_HTTP_PORT"); !okPort {
|
||||
DAPR_HTTP_PORT = "3500"
|
||||
daprHttpPort := os.Getenv("DAPR_HTTP_PORT")
|
||||
if daprHttpPort == "" {
|
||||
daprHttpPort = "3500"
|
||||
}
|
||||
client := &http.Client{
|
||||
Timeout: 15 * time.Second,
|
||||
}
|
||||
for i := 1; i <= 20; i++ {
|
||||
order := "{\"orderId\":" + strconv.Itoa(i) + "}"
|
||||
client := &http.Client{}
|
||||
req, err := http.NewRequest("POST", DAPR_HOST+":"+DAPR_HTTP_PORT+"/orders", strings.NewReader(order))
|
||||
order := `{"orderId":` + strconv.Itoa(i) + "}"
|
||||
req, err := http.NewRequest("POST", daprHost+":"+daprHttpPort+"/orders", strings.NewReader(order))
|
||||
if err != nil {
|
||||
fmt.Print(err.Error())
|
||||
os.Exit(1)
|
||||
log.Fatal(err.Error())
|
||||
}
|
||||
|
||||
// Adding app id as part of th header
|
||||
req.Header.Add("dapr-app-id", "order-processor")
|
||||
|
||||
// Invoking a service
|
||||
response, err := client.Do(req)
|
||||
|
||||
if err != nil {
|
||||
fmt.Print(err.Error())
|
||||
os.Exit(1)
|
||||
log.Fatal(err.Error())
|
||||
}
|
||||
|
||||
// Read the response
|
||||
result, err := ioutil.ReadAll(response.Body)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
response.Body.Close()
|
||||
|
||||
fmt.Println("Order passed: ", string(result))
|
||||
fmt.Println("Order passed:", string(result))
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,3 +1,3 @@
|
|||
module dapr_example
|
||||
module checkout_example
|
||||
|
||||
go 1.18
|
||||
go 1.19
|
||||
|
|
|
|||
|
|
@ -1,8 +0,0 @@
|
|||
apiVersion: dapr.io/v1alpha1
|
||||
kind: Configuration
|
||||
metadata:
|
||||
name: config
|
||||
spec:
|
||||
features:
|
||||
- name: Resiliency
|
||||
enabled: true
|
||||
|
|
@ -12,17 +12,24 @@ import (
|
|||
func getOrder(w http.ResponseWriter, r *http.Request) {
|
||||
data, err := ioutil.ReadAll(r.Body)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
log.Println("Error reading body:", err.Error())
|
||||
}
|
||||
fmt.Println("Order received : ", string(data))
|
||||
fmt.Println("Order received:", string(data))
|
||||
_, err = w.Write(data)
|
||||
if err != nil {
|
||||
log.Println("Error in writing the result obj")
|
||||
log.Println("Error writing the response:", err.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func main() {
|
||||
// Create a new router and respond to POST /orders requests
|
||||
r := mux.NewRouter()
|
||||
r.HandleFunc("/orders", getOrder).Methods("POST")
|
||||
_ = http.ListenAndServe(":6001", r)
|
||||
|
||||
// Start the server listening on port 6001
|
||||
// This is a blocking call
|
||||
err := http.ListenAndServe(":6001", r)
|
||||
if err != http.ErrServerClosed {
|
||||
log.Println("Error starting HTTP server")
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,5 +1,5 @@
|
|||
module dapr_example
|
||||
module order_processor_example
|
||||
|
||||
go 1.18
|
||||
go 1.19
|
||||
|
||||
require github.com/gorilla/mux v1.8.0
|
||||
|
|
|
|||
|
|
@ -1,50 +1,35 @@
|
|||
# Dapr state management (HTTP Client)
|
||||
|
||||
In this quickstart, you'll create a microservice to demonstrate Dapr's state management API. The service generates messages to store data in a state store. See [Why state management](#why-state-management) to understand when this pattern might be a good choice for your software architecture.
|
||||
In this quickstart, you'll create a microservice to demonstrate Dapr's state management API. The service generates messages to store data in a state store.
|
||||
|
||||
Visit [this](https://docs.dapr.io/developing-applications/building-blocks/state-management/) link for more information about Dapr and State Management.
|
||||
Visit the Dapr documentation on [State Management](https://docs.dapr.io/developing-applications/building-blocks/state-management/) for more information.
|
||||
|
||||
> **Note:** This example leverages HTTP `requests` only. If you are looking for the example using the Dapr Client SDK (recommended) [click here](../sdk/).
|
||||
> **Note:** This example leverages plain HTTP. You can find an example using the Dapr Client SDK (recommended) in the [`sdk` folder](../sdk/).
|
||||
|
||||
This quickstart includes one service:
|
||||
|
||||
- Go client service `order-processor`
|
||||
This quickstart includes one service: Go client service `order-processor`
|
||||
|
||||
### Run Go service with Dapr
|
||||
|
||||
1. Open a new terminal window and navigate to `order-processor` directory:
|
||||
|
||||
<!-- STEP
|
||||
name: Build Go file
|
||||
-->
|
||||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
go build .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
2. Run the Go service app with Dapr:
|
||||
1. Run the Go service app with Dapr in the `order-processor` folder:
|
||||
|
||||
<!-- STEP
|
||||
name: Run order-processor service
|
||||
expected_stdout_lines:
|
||||
- '== APP == Getting Order: "{\"orderId\":1}"'
|
||||
- '== APP == Getting Order: "{\"orderId\":2}"'
|
||||
- '== APP == Retrieved Order: "{\"orderId\":1}"'
|
||||
- '== APP == Retrieved Order: "{\"orderId\":2}"'
|
||||
- "Exited App successfully"
|
||||
expected_stderr_lines:
|
||||
output_match_mode: substring
|
||||
background: true
|
||||
sleep: 15
|
||||
-->
|
||||
|
||||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
dapr run --app-id order-processor --components-path ../../../components -- go run .
|
||||
dapr run \
|
||||
--app-id order-processor \
|
||||
--components-path ../../../components \
|
||||
-- go run .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
|
||||
```bash
|
||||
dapr stop --app-id order-processor
|
||||
```
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -12,43 +12,63 @@ import (
|
|||
"time"
|
||||
)
|
||||
|
||||
const stateStoreComponentName = "statestore"
|
||||
|
||||
func main() {
|
||||
var DAPR_HOST, DAPR_HTTP_PORT string
|
||||
var okHost, okPort bool
|
||||
if DAPR_HOST, okHost = os.LookupEnv("DAPR_HOST"); !okHost {
|
||||
DAPR_HOST = "http://localhost"
|
||||
daprHost := os.Getenv("DAPR_HOST")
|
||||
if daprHost == "" {
|
||||
daprHost = "http://localhost"
|
||||
}
|
||||
if DAPR_HTTP_PORT, okPort = os.LookupEnv("DAPR_HTTP_PORT"); !okPort {
|
||||
DAPR_HTTP_PORT = "3500"
|
||||
daprHttpPort := os.Getenv("DAPR_HTTP_PORT")
|
||||
if daprHttpPort == "" {
|
||||
daprHttpPort = "3500"
|
||||
}
|
||||
|
||||
client := http.Client{
|
||||
Timeout: 15 * time.Second,
|
||||
}
|
||||
|
||||
DAPR_STATE_STORE := "statestore"
|
||||
for i := 1; i <= 100; i++ {
|
||||
orderId := i
|
||||
order := "{\"orderId\":" + strconv.Itoa(orderId) + "}"
|
||||
order := `{"orderId":` + strconv.Itoa(orderId) + "}"
|
||||
state, _ := json.Marshal([]map[string]string{
|
||||
{"key": strconv.Itoa(orderId), "value": order},
|
||||
{
|
||||
"key": strconv.Itoa(orderId),
|
||||
"value": order,
|
||||
},
|
||||
})
|
||||
responseBody := bytes.NewBuffer(state)
|
||||
|
||||
// Save state into a state store
|
||||
_, _ = http.Post(DAPR_HOST+":"+DAPR_HTTP_PORT+"/v1.0/state/"+DAPR_STATE_STORE, "application/json", responseBody)
|
||||
log.Println("Saving Order: " + order)
|
||||
res, err := client.Post(daprHost+":"+daprHttpPort+"/v1.0/state/"+stateStoreComponentName, "application/json", bytes.NewReader(state))
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
res.Body.Close()
|
||||
fmt.Println("Saved Order:", order)
|
||||
|
||||
// Get state from a state store
|
||||
getResponse, err := http.Get(DAPR_HOST + ":" + DAPR_HTTP_PORT + "/v1.0/state/" + DAPR_STATE_STORE + "/" + strconv.Itoa(orderId))
|
||||
getResponse, err := client.Get(daprHost + ":" + daprHttpPort + "/v1.0/state/" + stateStoreComponentName + "/" + strconv.Itoa(orderId))
|
||||
if err != nil {
|
||||
fmt.Print(err.Error())
|
||||
os.Exit(1)
|
||||
panic(err)
|
||||
}
|
||||
result, _ := ioutil.ReadAll(getResponse.Body)
|
||||
fmt.Println("Getting Order: ", string(result))
|
||||
result, err := ioutil.ReadAll(getResponse.Body)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
fmt.Println("Retrieved Order:", string(result))
|
||||
getResponse.Body.Close()
|
||||
|
||||
// Delete state from the state store
|
||||
req, _ := http.NewRequest(http.MethodDelete, DAPR_HOST+":"+DAPR_HTTP_PORT+"/v1.0/state/"+DAPR_STATE_STORE+"/"+strconv.Itoa(orderId), nil)
|
||||
client := &http.Client{}
|
||||
_, _ = client.Do(req)
|
||||
log.Println("Deleting Order: " + order)
|
||||
req, err := http.NewRequest(http.MethodDelete, daprHost+":"+daprHttpPort+"/v1.0/state/"+stateStoreComponentName+"/"+strconv.Itoa(orderId), nil)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
res, err = client.Do(req)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
res.Body.Close()
|
||||
log.Println("Deleted Order:", order)
|
||||
|
||||
time.Sleep(5000)
|
||||
}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,3 +1,3 @@
|
|||
module dapr_example
|
||||
module order_processor_example
|
||||
|
||||
go 1.18
|
||||
go 1.19
|
||||
|
|
|
|||
|
|
@ -1,50 +1,35 @@
|
|||
# Dapr state management
|
||||
|
||||
In this quickstart, you'll create a microservice to demonstrate Dapr's state management API. The service generates messages to store data in a state store. See [Why state management](#why-state-management) to understand when this pattern might be a good choice for your software architecture.
|
||||
In this quickstart, you'll create a microservice to demonstrate Dapr's state management API. The service generates messages to store data in a state store.
|
||||
|
||||
Visit [this](https://docs.dapr.io/developing-applications/building-blocks/state-management/) link for more information about Dapr and State Management.
|
||||
Visit the Dapr documentation on [State Management](https://docs.dapr.io/developing-applications/building-blocks/state-management/) for more information.
|
||||
|
||||
> **Note:** This example leverages the Dapr client SDK. If you are looking for the example using only HTTP `requests` [click here](../http).
|
||||
> **Note:** This example leverages the Dapr Client SDK. You can find an example using plain HTTP in the [`http` folder](../http/).
|
||||
|
||||
This quickstart includes one service:
|
||||
|
||||
- Go client service `order-processor`
|
||||
This quickstart includes one service: Go client service `order-processor`
|
||||
|
||||
### Run Go service with Dapr
|
||||
|
||||
1. Open a new terminal window and navigate to `order-processor` directory:
|
||||
|
||||
<!-- STEP
|
||||
name: Build Go file
|
||||
-->
|
||||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
go build .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
2. Run the Go service app with Dapr:
|
||||
1. Run the Go service app with Dapr in the `order-processor` folder:
|
||||
|
||||
<!-- STEP
|
||||
name: Run order-processor service
|
||||
expected_stdout_lines:
|
||||
- '== APP == Getting Order: {"orderId":1}'
|
||||
- '== APP == Getting Order: {"orderId":2}'
|
||||
- '== APP == Retrieved Order: {"orderId":1}'
|
||||
- '== APP == Retrieved Order: {"orderId":2}'
|
||||
- "Exited App successfully"
|
||||
expected_stderr_lines:
|
||||
output_match_mode: substring
|
||||
background: true
|
||||
sleep: 15
|
||||
-->
|
||||
|
||||
|
||||
```bash
|
||||
cd ./order-processor
|
||||
dapr run --app-id order-processor --components-path ../../../components -- go run .
|
||||
dapr run \
|
||||
--app-id order-processor \
|
||||
--components-path ../../../components \
|
||||
-- go run .
|
||||
```
|
||||
|
||||
<!-- END_STEP -->
|
||||
|
||||
```bash
|
||||
dapr stop --app-id order-processor
|
||||
```
|
||||
|
|
|
|||
|
|
@ -1,8 +0,0 @@
|
|||
apiVersion: dapr.io/v1alpha1
|
||||
kind: Configuration
|
||||
metadata:
|
||||
name: config
|
||||
spec:
|
||||
features:
|
||||
- name: Resiliency
|
||||
enabled: true
|
||||
Binary file not shown.
|
|
@ -10,28 +10,38 @@ import (
|
|||
dapr "github.com/dapr/go-sdk/client"
|
||||
)
|
||||
|
||||
const stateStoreComponentName = "statestore"
|
||||
|
||||
func main() {
|
||||
client, err := dapr.NewClient()
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
|
||||
for i := 1; i <= 100; i++ {
|
||||
orderId := i
|
||||
order := "{\"orderId\":" + strconv.Itoa(orderId) + "}"
|
||||
client, err := dapr.NewClient()
|
||||
STATE_STORE_NAME := "statestore"
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
ctx := context.Background()
|
||||
order := `{"orderId":` + strconv.Itoa(orderId) + "}"
|
||||
|
||||
// Save state into the state store
|
||||
_ = client.SaveState(ctx, STATE_STORE_NAME, strconv.Itoa(orderId), []byte(order), nil)
|
||||
log.Print("Saving Order: " + string(order))
|
||||
err = client.SaveState(context.Background(), stateStoreComponentName, strconv.Itoa(orderId), []byte(order), nil)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
fmt.Println("Saved Order:", string(order))
|
||||
|
||||
// Get state from the state store
|
||||
result, _ := client.GetState(ctx, STATE_STORE_NAME, strconv.Itoa(orderId), nil)
|
||||
fmt.Println("Getting Order: " + string(result.Value))
|
||||
result, err := client.GetState(context.Background(), stateStoreComponentName, strconv.Itoa(orderId), nil)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
fmt.Println("Retrieved Order:", string(result.Value))
|
||||
|
||||
// Delete state from the state store
|
||||
_ = client.DeleteState(ctx, STATE_STORE_NAME, strconv.Itoa(orderId), nil)
|
||||
log.Print("Deleting Order: " + string(order))
|
||||
err = client.DeleteState(context.Background(), stateStoreComponentName, strconv.Itoa(orderId), nil)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
fmt.Println("Deleted Order:", string(order))
|
||||
|
||||
time.Sleep(5000)
|
||||
}
|
||||
|
|
|
|||
Binary file not shown.
|
|
@ -1,11 +1,10 @@
|
|||
module dapr_example
|
||||
module order_processor_sdk_example
|
||||
|
||||
go 1.18
|
||||
go 1.19
|
||||
|
||||
require github.com/dapr/go-sdk v1.5.0
|
||||
require github.com/dapr/go-sdk v1.6.0
|
||||
|
||||
require (
|
||||
github.com/dapr/dapr v1.8.0 // indirect
|
||||
github.com/golang/protobuf v1.5.2 // indirect
|
||||
github.com/pkg/errors v0.9.1 // indirect
|
||||
golang.org/x/net v0.0.0-20220621193019-9d032be2e588 // indirect
|
||||
|
|
|
|||
|
|
@ -11,10 +11,8 @@ github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XP
|
|||
github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
|
||||
github.com/dapr/dapr v1.8.0 h1:ZAAoBe6wuFp7k4tIHB7ajZXVTtGeDeVqIPrldzo3dF0=
|
||||
github.com/dapr/dapr v1.8.0/go.mod h1:yAsDiK5oecG0htw2S8JG9RFaeHJVdlTfZyOrL57AvRM=
|
||||
github.com/dapr/go-sdk v1.5.0 h1:OVkrupquJEOL1qRtwKcMVrFKYhw4UJQvgOJNduo2VxE=
|
||||
github.com/dapr/go-sdk v1.5.0/go.mod h1:Cvz3taCVu22WCNEUbc9/szvG/yJxWPAV4dcaG+zDWA4=
|
||||
github.com/dapr/go-sdk v1.6.0 h1:jg5A2khSCHF8bGZsig5RWN/gD0jjitszc2V6Uq2pPdY=
|
||||
github.com/dapr/go-sdk v1.6.0/go.mod h1:KLQBltoD9K0w5hKTihdcyg9Epob9gypwL5dYcQzPro4=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
|
||||
|
|
@ -51,6 +49,8 @@ github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
|
|||
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
|
||||
github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
|
||||
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
|
||||
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
|
||||
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
|
||||
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
|
|
@ -140,8 +140,8 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
|
|||
google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
|
||||
google.golang.org/protobuf v1.28.0 h1:w43yiav+6bVFTBQFZX0r7ipe9JQ1QsbMgHwbBziscLw=
|
||||
google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
|
|
|
|||
Loading…
Reference in New Issue