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request.go
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request.go
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package aliyun_igraph_go_sdk
import (
"encoding/base64"
"fmt"
"github.com/valyala/fasthttp"
"net/http"
"time"
)
var (
defaultRequestTimeout = 1 * time.Second
defaultMaxConnsPerHost = 512
defaultHttpClient = &fasthttp.Client{
MaxConnsPerHost: defaultMaxConnsPerHost,
ReadTimeout: defaultRequestTimeout,
WriteTimeout: defaultRequestTimeout,
}
)
func request(client *Client, method, uri string, headers map[string]string, body []byte) ([]byte, int, error) {
return realRequest(client, method, uri, headers, body)
}
// request sends a request to Be Service.
// @note if error is nil, you must call http.Response.Body.Close() to finalize reader
func realRequest(client *Client, method, uri string, headers map[string]string,
body []byte) ([]byte, int, error) {
headers["Host"] = client.Endpoint
digest, err := signature(client)
if err != nil {
return nil, 0, NewClientError(err)
}
auth := fmt.Sprintf("Basic %v", digest)
headers["Authorization"] = auth
// Initialize http request
// Handle the endpoint
urlStr := fmt.Sprintf("%s/%s", client.Endpoint, uri)
req := fasthttp.AcquireRequest()
resp := fasthttp.AcquireResponse()
defer func() {
// release resource
fasthttp.ReleaseResponse(resp)
fasthttp.ReleaseRequest(req)
}()
req.SetRequestURI(urlStr)
req.Header.SetMethod(method)
req.SetBody(body)
if client.clientConfig.RequestTimeout == 0 {
req.SetTimeout(defaultRequestTimeout)
} else {
req.SetTimeout(client.clientConfig.RequestTimeout)
}
for k, v := range headers {
req.Header.Add(k, v)
}
err = client.httpClient.Do(req, resp)
if err != nil {
return nil, 0, err
}
respBody := resp.Body()
buf := make([]byte, len(respBody))
copy(buf, respBody)
// Parse the be error from body.
if resp.StatusCode() != http.StatusOK {
err := &BadResponseError{}
err.HTTPCode = resp.StatusCode()
err.RespBody = string(buf)
return nil, resp.StatusCode(), err
}
return buf, resp.StatusCode(), nil
}
func signature(client *Client) (string, error) {
if client.UserName == "" || client.PassWord == "" {
return "", NewClientError(fmt.Errorf("Empty userName or passWord"))
}
auth := client.UserName + ":" + client.PassWord
return base64.StdEncoding.EncodeToString([]byte(auth)), nil
}