initial import

microservices/http-client-circut-breaker/go.mod

@@ -0,0 +1,5 @@
+module golang.source-fellows.com/samples/httpcircuitbreaker
+
+go 1.13
+
+require github.com/sony/gobreaker v0.4.1

microservices/http-client-circut-breaker/go.sum

@@ -0,0 +1,6 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sony/gobreaker v0.4.1 h1:oMnRNZXX5j85zso6xCPRNPtmAycat+WcoKbklScLDgQ=
+github.com/sony/gobreaker v0.4.1/go.mod h1:ZKptC7FHNvhBz7dN2LGjPVBz2sZJmc0/PkyDJOjmxWY=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

microservices/http-client-circut-breaker/main.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"time"
+
+	breaker "github.com/sony/gobreaker"
+)
+
+var cb *breaker.CircuitBreaker
+
+func main() {
+
+	settings := breaker.Settings{Interval: 1 * time.Second, Timeout: 5 * time.Second}
+	cb = breaker.NewCircuitBreaker(settings)
+
+	for {
+		bites, err := cb.Execute(func() (interface{}, error) {
+			res, err := http.Get("http://localhost:8080/a")
+			if err != nil {
+				return nil, err
+			}
+			if res.StatusCode == http.StatusOK {
+
+			}
+			defer res.Body.Close()
+			bites, _ := ioutil.ReadAll(res.Body)
+			return bites, nil
+		})
+
+		if err != nil {
+			log.Printf("error %v\n", err)
+
+		} else {
+			fmt.Println(string(bites.([]byte)))
+		}
+
+	}
+
+}