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client.go
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client.go
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// Copyright 2020 DSR Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"bytes"
"fmt"
"io/ioutil"
"net/http"
"strings"
)
const (
BaseURL = "http://127.0.0.1:26640"
)
type RESTError struct {
resp http.Response
body []byte
}
func (e *RESTError) Error() string {
return fmt.Sprintf(
"Response error %d, %s, response: %+v", e.resp.StatusCode, e.body, e.resp,
)
}
func BuildURL(uri string) string {
return BaseURL + "/" + strings.Trim(uri, "/")
}
func SendGetRequest(uri string) ([]byte, error) {
return sendRequest(uri, "GET", []byte{}, "", "")
}
func SendPostRequest(uri string, body []byte, account string, passphrase string) ([]byte, error) {
return sendRequest(uri, "POST", body, account, passphrase)
}
func SendPutRequest(uri string, body []byte, account string, passphrase string) ([]byte, error) {
return sendRequest(uri, "PUT", body, account, passphrase)
}
func SendPatchRequest(uri string, body []byte, account string, passphrase string) ([]byte, error) {
return sendRequest(uri, "PATCH", body, account, passphrase)
}
func SendDeleteRequest(uri string, body []byte, account string, passphrase string) ([]byte, error) {
return sendRequest(uri, "DELETE", body, account, passphrase)
}
func sendRequest(uri string, method string, body []byte, account string, passphrase string) ([]byte, error) {
if len(account) == 0 {
passphrase = ""
}
client := &http.Client{}
//nolint:noctx
req, err := http.NewRequest(method, BuildURL(uri), bytes.NewBuffer(body))
if err != nil {
return nil, err
}
if len(account) != 0 && len(passphrase) != 0 {
req.SetBasicAuth(account, passphrase)
}
resp, err := client.Do(req)
if err != nil {
fmt.Printf("Error received from server: %v", err)
return nil, err
}
response, err := ReadResponseBody(resp)
if err != nil {
return nil, err
}
// println(string(response))
if resp.StatusCode != http.StatusOK {
return nil, &RESTError{
resp: *resp,
body: response,
}
}
return response, nil
}
func ReadResponseBody(resp *http.Response) ([]byte, error) {
defer resp.Body.Close()
return ioutil.ReadAll(resp.Body)
}