mirror of https://github.com/dapr/go-sdk.git
59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
package client
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
"os"
|
|
|
|
pb "github.com/dapr/go-sdk/dapr/proto/dapr/v1"
|
|
"github.com/pkg/errors"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
const (
|
|
daprPortDefault = "4000"
|
|
daprPortEnvVarName = "DAPR_GRPC_PORT"
|
|
)
|
|
|
|
// NewClientWithAddress instantiates dapr client locally using port from DAPR_GRPC_PORT env var
|
|
// When DAPR_GRPC_PORT client defaults to 4000
|
|
func NewClient() (client *Client, err error) {
|
|
port := os.Getenv(daprPortEnvVarName)
|
|
if port == "" {
|
|
port = daprPortDefault
|
|
}
|
|
return NewClientWithPort(port)
|
|
}
|
|
|
|
// NewClientWithAddress instantiates dapr client locally for the specific port
|
|
func NewClientWithPort(port string) (client *Client, err error) {
|
|
address := net.JoinHostPort("127.0.0.1", port)
|
|
return NewClientWithAddress(address)
|
|
}
|
|
|
|
// NewClientWithAddress instantiates dapr client configured for the specific address
|
|
func NewClientWithAddress(address string) (client *Client, err error) {
|
|
conn, err := grpc.Dial(address, grpc.WithInsecure())
|
|
if err != nil {
|
|
return nil, errors.Wrapf(err, "error creating connection to '%s': %v", address, err)
|
|
}
|
|
client = &Client{
|
|
connection: conn,
|
|
protoClient: pb.NewDaprClient(conn),
|
|
}
|
|
return
|
|
}
|
|
|
|
// Client is the dapr client
|
|
type Client struct {
|
|
connection *grpc.ClientConn
|
|
protoClient pb.DaprClient
|
|
}
|
|
|
|
// Close cleans up all resources created by the client
|
|
func (c *Client) Close(ctx context.Context) {
|
|
if c.connection != nil {
|
|
c.connection.Close()
|
|
}
|
|
}
|