从 C# Web 方法向 Firebase Cloud Messaging 发送消息将返回 401

Question

我使用以下 C# Web 方法来 webRequest Firebase Cloud Messaging

public void messgaeFCM(String cToken) {
    try
    {

    //send message to clientToken through FCM server
    WebRequest wr = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
    wr.Method = "POST";
    wr.ContentType = "application/json";
    wr.Headers.Add("Authorization", "Key='" + FIREBASE_PROJECT_ID +"'");
    String notification = "{ 'data': " +
            "{" +
            "'title': 'Firebase notification'," +
            "'detail': 'I am firebase notification. you can customise me. enjoy'," +
            "}," +
            "'to' : '" + cToken + "'" +
            "}";
    byte[] byteArray = Encoding.UTF8.GetBytes(notification);
    Stream dataStream = wr.GetRequestStream();
    dataStream.Write(byteArray, 0, byteArray.Length);
    dataStream.Close();
    WebResponse response = wr.GetResponse();
    }
    catch (Exception e)
    {
        new general().logError(e.Message);
    }
}

FIREBASE_PROJECT_ID值设置为 FCM 项目 ID。

为有效客户端令牌设置的 cToken 值。

上面的代码总是返回以下错误：

远程服务器返回错误：(401( 未经授权。

不知道出了什么问题...

Answer 1

wr.Headers.Add("Authorization", "Key='" + FIREBASE_PROJECT_ID +"'");

尝试删除单引号：

wr.Headers.Add("Authorization", "Key=" + FIREBASE_PROJECT_ID);