func (self *Client) Call(service string, args interface{}, reply interface{}) error {
message, err := json.EncodeClientRequest(service, args)
//log.Println(string(message))
if err != nil {
return err
}
req, err := http.NewRequest("POST", self.addr, bytes.NewBuffer(message))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
resp, err := self.client.Do(req)
if err != nil {
return err
}
/*var bodyBytes []byte
if resp.Body != nil {
bodyBytes, _ = ioutil.ReadAll(resp.Body)
}
// Restore the io.ReadCloser to its original state
resp.Body = ioutil.NopCloser(bytes.NewBuffer(bodyBytes))
// Use the content
bodyString := string(bodyBytes)
log.Println(bodyString)*/
defer resp.Body.Close()
err = json.DecodeClientResponse(resp.Body, reply)
if err != nil {
log.Println("Couldn't decode response. %s", err)
return err
}
return nil
}
func BuyStocks(method string, args ReqParameters) (Response ResParameters, err error) {
buf, _ := json.EncodeClientRequest(method, args)
fmt.Println("Symbols in jsonrpccall", args.Symbols)
//fmt.Println("buffer : ", bytes.NewBuffer(buf))
req, err := http.NewRequest("POST", "http://localhost:1234/rpc", bytes.NewBuffer(buf))
req.Header.Set("X-Custom-Header", "myvalue")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
return
}
/* defer resp.Body.Close()
fmt.Println("response Status:", resp.Status)
fmt.Println("response Headers:", resp.Header)
body, _ := ioutil.ReadAll(resp.Body)
fmt.Println("response Body:", string(body))
*/
err = json.DecodeClientResponse(resp.Body, &Response)
/*if err != nil {
return
}*/
//var store = sessions.NewCookieStore([]byte("something-very-secret"))
/* cookies := resp.Cookies()
//cookie, _ := req.Cookie("golang-cookie")
fmt.Println("cookies", cookies)
fmt.Println("Session name", Session.Name())
*/
return
}
func main() {
url := "http://localhost:1234/rpc"
args := &rpcexample.Args{
A: 2,
B: 3,
}
message, err := json.EncodeClientRequest("Arith.Multiply", args)
if err != nil {
log.Fatalf("%s", err)
}
req, err := http.NewRequest("POST", url, bytes.NewBuffer(message))
if err != nil {
log.Fatalf("%s", err)
}
req.Header.Set("Content-Type", "application/json")
client := new(http.Client)
resp, err := client.Do(req)
if err != nil {
log.Fatalf("Error in sending request to %s. %s", url, err)
}
defer resp.Body.Close()
var result rpcexample.Result
err = json.DecodeClientResponse(resp.Body, &result)
if err != nil {
log.Fatalf("Couldn't decode response. %s", err)
}
log.Printf("%d*%d=%d\n", args.A, args.B, result)
}
func (c *Client) call(httpMethod string, rpcMethod string, args interface{}, result interface{}) (err error) {
var (
method string = fmt.Sprintf("%v.%v", SERVICE_NAME, rpcMethod)
message []byte
req *http.Request
resp *http.Response
)
if message, err = json.EncodeClientRequest(method, args); err != nil {
return
}
msgBuf := bytes.NewBuffer(message)
if req, err = http.NewRequest(httpMethod, c.endpoint, msgBuf); err != nil {
return
}
req.Header.Set("Content-Type", "application/json")
if resp, err = c.httpClient.Do(req); err != nil {
return
}
defer resp.Body.Close()
if err = json.DecodeClientResponse(resp.Body, result); err != nil {
return
}
return
}
func jsonRpcTradeCall(method string, args RPCAPITRADEArguement) (reply RPCAPITradeResponse, err error) {
buf, _ := json.EncodeClientRequest(method, args)
resp, err := http.Post("http://localhost:8080/rpc", "application/json", bytes.NewBuffer(buf))
if err != nil {
return
}
defer resp.Body.Close()
err = json.DecodeClientResponse(resp.Body, &reply)
return
}
func jsonrpc(method string, req, res interface{}) error {
buf, err := json.EncodeClientRequest(method, req)
if err != nil {
return err
}
resp, err := http.Post(fmt.Sprintf("http://localhost:%d/rpc", env.Port), "application/json", bytes.NewBuffer(buf))
if err != nil {
return err
}
defer resp.Body.Close()
json.DecodeClientResponse(resp.Body, res)
return nil
}
func ClientRequest(method string, args Args) (reply Reply, err error) {
req, err := json.EncodeClientRequest(method, args)
if err != nil {
fmt.Println("ClientRequest Error")
fmt.Println(err)
return reply, err
}
res, err := http.Post("http://127.0.0.1:8080/rpc", "application/json", bytes.NewBuffer(req))
if err != nil {
fmt.Println("Post Error")
fmt.Println(err)
return reply, err
}
defer res.Body.Close()
err = json.DecodeClientResponse(res.Body, &reply)
return reply, err
}
func RPC(method string, args InputArgs) (reply ReplyMessage, err error) {
buf, err := json.EncodeClientRequest(method, args)
if err != nil {
return reply, err
}
resp, err := http.Post("http://127.0.0.1:8080/rpc", "application/json", bytes.NewBuffer(buf))
if err != nil {
fmt.Println("Http.Post Error")
return reply, err
}
defer resp.Body.Close()
err = json.DecodeClientResponse(resp.Body, &reply)
return reply, err
}
func RPCCall(method string, req *ButlerOrder, res *ButlerServe) error {
buf, _ := json.EncodeClientRequest(method, req)
body := bytes.NewBuffer(buf)
httpReq, err := http.NewRequest("POST", "http://localhost:10080/rpc", body)
httpReq.Header.Set("Content-Type", "application/json")
client := &http.Client{}
r, err := client.Do(httpReq)
if err != nil {
return err
}
defer r.Body.Close()
err = json.DecodeClientResponse(r.Body, res)
if err != nil {
return err
}
return nil
}
func main() {
var option int
var money float32
var input string
var errChar string
bio := bufio.NewReader(os.Stdin)
fmt.Println("Choose one of the following options: ")
fmt.Println("1. Buy stocks")
fmt.Println("2. View profile")
fmt.Println("Enter 1 or 2")
line, _, _ := bio.ReadLine()
fmt.Sscanf(string(line), "%d %s", &option, &errChar)
if errChar != "" {
fmt.Println("Invalid input")
os.Exit(1)
}
if option == 1 {
//Get input
var a Request1
var reply Reply
fmt.Println("Enter string input")
line, _, _ := bio.ReadLine()
fmt.Sscanf(string(line), "%s", &input)
fmt.Println("Enter budget")
line2, _, _ := bio.ReadLine()
fmt.Sscanf(string(line2), "%f", &money)
a.Budget = money
a.StockSymbolAndPercentage = input
buf, _ := json.EncodeClientRequest("StockMarket.BuyStocks", &a)
resp, err := http.Post("http://localhost:10000/rpc", "application/json", bytes.NewBuffer(buf))
if err != nil {
fmt.Println("Error occurred", err)
}
defer resp.Body.Close()
err = json.DecodeClientResponse(resp.Body, &reply)
if err != nil {
log.Fatal("Error occurred.. ", err)
}
fmt.Println("Your trade Id is: ", reply.TradeId)
fmt.Println("Summary of your trade: ", reply.StrOut)
fmt.Println("Remaining balance: ", reply.UnvestedAmount)
} else if option == 2 {
var tid int
var b Request2
var reply2 Response2
fmt.Println("Enter your trade id")
line, _, _ := bio.ReadLine()
fmt.Sscanf(string(line), "%d %s", &tid, &errChar)
if errChar != "" {
fmt.Println("Invalid input")
os.Exit(1)
}
b.TradeId = tid
buf, _ := json.EncodeClientRequest("StockMarket.CheckPortfolio", &b)
resp2, err := http.Post("http://localhost:10000/rpc", "application/json", bytes.NewBuffer(buf))
if err != nil {
fmt.Println("Error:", err)
}
defer resp2.Body.Close()
err = json.DecodeClientResponse(resp2.Body, &reply2)
if err != nil {
log.Fatal(err)
}
fmt.Println("Stocks bought: ", reply2.Stocks)
fmt.Println("CurrentMarketValue: ", reply2.CurrentMarketValue)
fmt.Println("Remaining balance: ", reply2.UnvestedAmount)
} else {
fmt.Println("Invalid input")
}
}
func (jsonCodec) DecodeResponse(r io.Reader, reply interface{}) error {
return json.DecodeClientResponse(r, reply)
}