Example #1
0
func (r *rpcClient) stream(ctx context.Context, address string, request Request, responseChan interface{}) (Streamer, error) {
	msg := &transport.Message{
		Header: make(map[string]string),
	}

	md, ok := c.GetMetadata(ctx)
	if ok {
		for k, v := range md {
			msg.Header[k] = v
		}
	}

	msg.Header["Content-Type"] = request.ContentType()

	c, err := r.opts.transport.Dial(address, transport.WithStream())
	if err != nil {
		return nil, errors.InternalServerError("go.micro.client", fmt.Sprintf("Error sending request: %v", err))
	}

	client := rpc.NewClientWithCodec(newRpcPlusCodec(msg, c))
	call := client.StreamGo(request.Method(), request.Request(), responseChan)

	return &rpcStream{
		request: request,
		call:    call,
		client:  client,
	}, nil
}
Example #2
0
func (r *rpcClient) Publish(ctx context.Context, p Publication) error {
	md, ok := c.GetMetadata(ctx)
	if !ok {
		md = make(map[string]string)
	}
	md["Content-Type"] = p.ContentType()

	// encode message body
	var body []byte

	switch p.ContentType() {
	case "application/octet-stream":
		b, err := proto.Marshal(p.Message().(proto.Message))
		if err != nil {
			return err
		}
		body = b
	case "application/json":
		b, err := json.Marshal(p.Message())
		if err != nil {
			return err
		}
		body = b
	}

	r.once.Do(func() {
		r.opts.broker.Connect()
	})

	return r.opts.broker.Publish(p.Topic(), &broker.Message{
		Header: md,
		Body:   body,
	})
}
Example #3
0
func (e *Example) Call(ctx context.Context, req *example.Request, rsp *example.Response) error {

	// Endpoint construction
	var ep endpoint.Endpoint
	ep = func() error {
		md, _ := c.GetMetadata(ctx)
		log.Infof("Received Example.Call request with metadata: %v", md)
		rsp.Msg = server.Config().Id() + ": Hello " + req.Name
		return nil
	}

	// Including middlewares
	ep = ratelimit.NewTokenBucketLimiter(testBucket)(ep)
	ep = circuitbreaker.Hystrix("test_command", ep, nil, 0, 50, 1000, 0, 0)(ep)

	// Excuting
	ep()

	return nil

}
Example #4
0
func (r *rpcClient) call(ctx context.Context, address string, request Request, response interface{}) error {
	msg := &transport.Message{
		Header: make(map[string]string),
	}

	md, ok := c.GetMetadata(ctx)
	if ok {
		for k, v := range md {
			msg.Header[k] = v
		}
	}

	msg.Header["Content-Type"] = request.ContentType()

	c, err := r.opts.transport.Dial(address)
	if err != nil {
		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error sending request: %v", err))
	}

	client := rpc.NewClientWithCodec(newRpcPlusCodec(msg, c))
	return client.Call(ctx, request.Method(), request.Request(), response)
}
Example #5
0
func (e *Example) Call(ctx context.Context, req *example.Request, rsp *example.Response) error {
	md, _ := c.GetMetadata(ctx)
	log.Infof("Received Example.Call request with metadata: %v", md)
	rsp.Msg = server.Config().Id() + ": Hello " + req.Name
	return nil
}