傳遞登錄信息發送的HttpRequest到SFDC Web服務

Question

嘗試發送JSON的HttpRequest到SFDC Web服務時，得到如下回應：

[1] 
0: { 
message: "Session expired or invalid" 
errorCode: "INVALID_SESSION_ID" 
} 

如何正確地傳遞會話ID或LoginResult與HttpRequest的另一個信息？代碼示例如下：

// Generate JSON 
    MyClass object = new MyClass(); 
    string post_data = JsonSerializer.SerializeToString(object); // this is what we are sending 

    // this is where we will send it 
    string uri = "https://url.salesforce.com/some_path/"; 

    // create a request 
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri); 
    request.KeepAlive = false; 
    request.Method = "POST"; 
    byte[] postBytes = Encoding.ASCII.GetBytes(post_data); 
    request.ContentType = "application/json"; 
    request.ContentLength = postBytes.Length; 

    // Setup proxy and SFDC login 
    LoginResult result = SfdcConnection.GetLoginResult(); 
    // ------------ Need to add login info here ----------------- 

    // now send it 
    Stream requestStream = request.GetRequestStream(); 
    requestStream.Write(postBytes, 0, postBytes.Length); 
    requestStream.Close(); 

    // grab te response and print it out to the console along with the status code 
    HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
    string jsonResponse = new StreamReader(response.GetResponseStream()).ReadToEnd(); 

Answer 1

你需要傳遞的SessionID在Authorization頭，使用OAuth的模式，所以它會是

request.Headers.Add("Authorization", "Bearer " + result.sessionId); 

sessionId可用一段時間，所以只需調用一次login，而不是在每個REST API調用之前。

這涵蓋在REST API docs更詳細。

Answer 2

您需要連接LoginResult（其中最有可能包含會話ID），您的要求，否則，Web服務只是認爲沒有會話ID的請求（沒有cookie，也許是）並且沒有驗證您是在登錄客戶端的方式。

僞

LoginResult result = SfdcConnection.GetLoginResult(); 
// attach sesionId to your request, see the web services documentation for this 
request.Headers.Add("sessionId", result.sessionId);