如何为 ebay 解决（[error] => invalid_client [error_description] => client authentication failed）

Question

public function authorizationToken(){
$link = "https://api.ebay.com/identity/v1/oauth2/token";
$codeAuth = base64_encode($this->clientID.':'.$this->certID);
$ch = curl_init($link);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded','Authorization: Basic '.$codeAuth));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=authorization_code&code=".urlencode($this->authCode)."&redirect_uri=".$this->ruName."&scope=".urlencode('https://api.ebay.com/oauth/api_scope'));
$response = curl_exec($ch);
$json = json_decode($response, true);$info = curl_getinfo($ch);
curl_close($ch);print_r($json);}

Answer 1

您似乎将 refresh_token 与 authorization_token 混淆了，因为您在两个不同的请求之间混合了不兼容的参数。

如果您尝试获取初始的“AccessToken”（AKA UserAccessToken、access_token、AuthToken，...），那么您应该不包含scope请求正文中的参数。所以你的请求正文应该是这样的：

grant_type=authorization_code&redirect_uri=<redirect_uri>&code=<authorization_code>

其中<authorization_code> 是从here 返回的值。

对于差异的概述，我建议this answer 而不是official docs。

Answer 2

试试这个代码

  public function authorizationToken(){
    $link = "https://api.ebay.com/identity/v1/oauth2/token";
    $codeAuth = base64_encode($this->clientID.':'.$this->certID);
    $ch = curl_init($link);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded','Authorization: Basic '.$codeAuth));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=client_credentials&scope=".urlencode('https://api.ebay.com/oauth/api_scope'));
    $response = curl_exec($ch);
    $json = json_decode($response, true);
    $info = curl_getinfo($ch);
    curl_close($ch);
    print_r($json);
}