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get.go
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get.go
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package client
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
)
// RPCGet rpc get
func RPCGet(result interface{}, url string) error {
return RPCGetRequest(result, url, nil, nil, defaultTimeout)
}
// RPCGetWithTimeout rpc get with timeout
func RPCGetWithTimeout(result interface{}, url string, timeout int) error {
return RPCGetRequest(result, url, nil, nil, timeout)
}
// RPCGetRequest rpc get request
func RPCGetRequest(result interface{}, url string, params, headers map[string]string, timeout int) error {
resp, err := HTTPGet(url, params, headers, timeout)
if err != nil {
return fmt.Errorf("GET request error: %v (url: %v, params: %v)", err, url, params)
}
if resp.StatusCode != 200 {
return fmt.Errorf("error response status: %v (url: %v)", resp.StatusCode, url)
}
defer resp.Body.Close()
const maxReadContentLength int64 = 1024 * 1024 * 10 // 10M
body, err := ioutil.ReadAll(io.LimitReader(resp.Body, maxReadContentLength))
if err != nil {
return fmt.Errorf("read body error: %v", err)
}
err = json.Unmarshal(body, &result)
if err != nil {
return fmt.Errorf("unmarshal result error: %v", err)
}
return nil
}
// RPCRawGet rpc raw get
func RPCRawGet(url string) (string, error) {
return RPCRawGetRequest(url, nil, nil, defaultTimeout)
}
// RPCRawGetWithTimeout rpc raw get with timeout
func RPCRawGetWithTimeout(url string, timeout int) (string, error) {
return RPCRawGetRequest(url, nil, nil, timeout)
}
// RPCRawGetRequest rpc raw get request
func RPCRawGetRequest(url string, params, headers map[string]string, timeout int) (string, error) {
resp, err := HTTPGet(url, params, headers, timeout)
if err != nil {
return "", fmt.Errorf("GET request error: %v (url: %v, params: %v)", err, url, params)
}
defer resp.Body.Close()
const maxReadContentLength int64 = 1024 * 1024 * 10 // 10M
body, err := ioutil.ReadAll(io.LimitReader(resp.Body, maxReadContentLength))
if err != nil {
return "", fmt.Errorf("read body error: %v", err)
}
if resp.StatusCode != 200 {
return "", fmt.Errorf("wrong response status %v. message: %v", resp.StatusCode, string(body))
}
return string(body), nil
}