如何解决 eBay 的( [错误] => invalid_client [error_description] => 客户端身份验证失败)

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

看起来你对authorization_token感到refresh_token混淆，因为你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"AccessToken"(又名UserAccessToken、access_token、AuthToken 等(，则不应在请求正文中包含scope参数。 因此，请求正文应如下所示：

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

其中<authorization_code>是从此处返回的值。

对于差异的概述，我推荐这个答案而不是关于该主题的官方文档。

Answer 2

试试这段代码

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);
}