/
client.go
86 lines (62 loc) · 1.71 KB
/
client.go
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package cmd
import (
"bytes"
"context"
"encoding/json"
"errors"
"io"
"io/ioutil"
"net/http"
"time"
"github.com/spf13/viper"
)
func gatewayGet(endpoint string, authNeeded bool) (*http.Response, error) {
return sendGatewayRequest("GET", endpoint, authNeeded, nil)
}
func gatewayPost(endpoint string, authNeeded bool, data []byte) (*http.Response, error) {
return sendGatewayRequest("POST", endpoint, authNeeded, data)
}
func getAuthToken() (string, error) {
resp, err := gatewayPost("auth/login", false, []byte(`{"username": "`+viper.GetString("username")+`", "password": "`+viper.GetString("password")+`"}`))
if err != nil {
return "", err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
var respJSON loginResp
err = json.Unmarshal(body, &respJSON)
if err != nil {
return "", err
}
return respJSON.Auth.Token, nil
}
func sendGatewayRequest(verb string, endpoint string, authNeeded bool, data []byte) (*http.Response, error) {
var postData io.Reader
if len(data) > 0 {
postData = bytes.NewBuffer(data)
}
ctx, cancel := context.WithTimeout(context.Background(), 4*time.Second)
defer cancel()
req, err := http.NewRequestWithContext(ctx, verb, "http://192.168.12.1/TMI/v1/"+endpoint, postData)
if err != nil {
return nil, err
}
if authNeeded {
token, err := getAuthToken()
if err != nil {
return nil, errors.New("This request requires authentication however an auth token was unable to be retrieved.")
}
req.Header.Add("Authorization", "Bearer "+token)
}
if postData != nil {
req.Header.Add("Content-Type", "application/json")
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
return resp, nil
}