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authenticate.go
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/
authenticate.go
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package zgo
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
)
type GetAccessTokenResp struct {
AccessToken string `json:"access_token"`
RefreshToken string `json:"refresh_token"`
ExpiresIn string `json:"expires_in"`
ErrorResp
}
func (z *zgo) RefreshAccessToken(ctx context.Context, refreshToken string) (GetAccessTokenResp, error) {
payload := url.Values{}
payload.Set("app_id", z.appID)
payload.Set("grant_type", "refresh_token")
payload.Set("refresh_token", refreshToken)
req, err := http.NewRequestWithContext(ctx, http.MethodPost, getAccessTokenURL, bytes.NewBufferString(payload.Encode()))
if err != nil {
return GetAccessTokenResp{}, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("secret_key", z.appSecret)
resp, err := z.httpClient.Do(req)
if err != nil {
return GetAccessTokenResp{}, err
}
defer func() { _ = resp.Body.Close() }()
if resp.StatusCode != http.StatusOK {
return GetAccessTokenResp{}, errors.New("request failed")
}
responseBody, err := io.ReadAll(resp.Body)
if err != nil {
return GetAccessTokenResp{}, err
}
var data GetAccessTokenResp
if err := json.Unmarshal(responseBody, &data); err != nil {
return GetAccessTokenResp{}, err
}
if data.Error != 0 {
return data, fmt.Errorf("request failed: %+v", data)
}
return data, nil
}