mirror of https://github.com/dapr/cli.git
88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
/*
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Copyright 2023 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"context"
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"encoding/json"
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"fmt"
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"log"
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"net"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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)
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type handler struct{}
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type Metrics struct {
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MetricsID int `json:"metricsID"`
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}
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func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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fmt.Println("Received request: ", r.Method)
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defer r.Body.Close()
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var metrics Metrics
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err := json.NewDecoder(r.Body).Decode(&metrics)
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if err != nil {
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fmt.Println("Error decoding body: ", err)
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w.WriteHeader(http.StatusBadRequest)
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return
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}
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fmt.Println("Received metrics: ", metrics)
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w.WriteHeader(http.StatusOK)
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}
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func main() {
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fmt.Println("Starting server in port 9081...")
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StartServer(9081, &handler{})
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}
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// StartServer starts a HTTP or HTTP2 server
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func StartServer(port int, handler http.Handler) {
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// Create a listener
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addr := fmt.Sprintf(":%d", port)
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ln, err := net.Listen("tcp", addr)
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if err != nil {
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log.Fatalf("Failed to create listener: %v", err)
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}
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//nolint:gosec
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server := &http.Server{
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Addr: addr,
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Handler: handler,
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}
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// Stop the server when we get a termination signal
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stopCh := make(chan os.Signal, 1)
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signal.Notify(stopCh, syscall.SIGKILL, syscall.SIGTERM, syscall.SIGINT) //nolint:staticcheck
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go func() {
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// Wait for cancelation signal
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<-stopCh
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log.Println("Shutdown signal received")
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ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
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defer cancel()
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server.Shutdown(ctx)
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}()
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err = server.Serve(ln)
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if err != http.ErrServerClosed {
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log.Fatalf("Failed to run server: %v", err)
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}
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log.Println("Server shut down")
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}
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