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
}
func dialHTTP(network, address, codecName string, cFactory ClientCodecFactory, auth bool, connectTimeout time.Duration, config *tls.Config) (*rpc.Client, error) {
var err error
var conn net.Conn
if connectTimeout != 0 {
conn, err = net.DialTimeout(network, address, connectTimeout)
} else {
conn, err = net.Dial(network, address)
}
if err != nil {
return nil, err
}
if config != nil {
conn = tls.Client(conn, config)
}
_, err = io.WriteString(conn, "CONNECT "+GetRpcPath(codecName, auth)+" HTTP/1.0\n\n")
if err != nil {
return nil, err
}
// Require successful HTTP response
// before switching to RPC protocol.
buffered := NewBufferedConnection(conn)
resp, err := http.ReadResponse(buffered.Reader, &http.Request{Method: "CONNECT"})
if err == nil && resp.Status == connected {
return rpc.NewClientWithCodec(cFactory(buffered)), nil
}
if err == nil {
err = errors.New("unexpected HTTP response: " + resp.Status)
}
conn.Close()
return nil, &net.OpError{Op: "dial-http", Net: network + " " + address, Addr: nil, Err: err}
}
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)
}
// NewClient returns a new rpc.Client to handle requests to the
// set of services at the other end of the connection.
func NewClient(conn io.ReadWriteCloser) *rpc.Client {
return rpc.NewClientWithCodec(NewClientCodec(conn))
}