func ExampleCall(w http.ResponseWriter, r *http.Request) {
// decode the incoming request as json
var request map[string]interface{}
if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
http.Error(w, err.Error(), 500)
return
}
// call the backend service
exampleClient := example.NewExampleClient("go.micro.srv.template", client.DefaultClient)
rsp, err := exampleClient.Call(context.TODO(), &example.Request{
Name: request["name"].(string),
})
if err != nil {
http.Error(w, err.Error(), 500)
return
}
// we want to augment the response
response := map[string]interface{}{
"msg": rsp.Msg,
"ref": time.Now().UnixNano(),
}
// encode and write the response as json
if err := json.NewEncoder(w).Encode(response); err != nil {
http.Error(w, err.Error(), 500)
return
}
}
// Client returns a wrapper for the ExampleClient
func ExampleWrapper(service micro.Service) server.HandlerWrapper {
client := example.NewExampleClient("go.micro.srv.template", service.Client())
return func(fn server.HandlerFunc) server.HandlerFunc {
return func(ctx context.Context, req server.Request, rsp interface{}) error {
ctx = context.WithValue(ctx, exampleKey{}, client)
return fn(ctx, req, rsp)
}
}
}
