(C#) HttpPostJson2Async Example

Demonstrates use of the HttpPostJson2Async method.

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//  This requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code

//  See PostJson2 Example for the synchronous equivalent of this example.

Chilkat.Http http = new Chilkat.Http();

bool success;

//  Sends a POST equivalent to the following CURL command:

//  curl -X POST https://sandbox.plaid.com/institutions/get \
//    -H 'content-type: application/json' \
//    -d '{
//      "client_id": String,
//      "secret":String,
//      "count": Number,
//      "offset": Number
//    }'

//  Suppress some default headers that would automatically added..
http.AcceptCharset = "";
http.UserAgent = "";
http.AcceptLanguage = "";
http.AllowGzip = false;

string jsonBody = "{\"client_id\": \"PLAID_CLIENT_ID\", \"secret\":\"PLAID_SECRET\", \"count\": 10, \"offset\": 0}";
Chilkat.Task task = http.PostJson2Async("https://sandbox.plaid.com/institutions/get","application/json",jsonBody);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

//  Start the background task.
success = task.Run();
if (!success) {
    Debug.WriteLine(task.LastErrorText);

    return;
}

//  The application is now free to do anything else
//  while the HTTP POST is in progress

//  For this example, we'll simply sleep and periodically
//  check to see if the HTTP POST is finished.
while (task.Finished != true) {
    //  Sleep 100 ms.
    task.SleepMs(100);
}

//  When we get here, the task is either finished successfully or not, or was canceled/aborted.

//  If the task was "canceled", it was canceled prior to actually starting.  This could
//  happen if the task was canceled while waiting in a thread pool queue to be scheduled by Chilkat's
//  background thread pool scheduler.

//  If the task was "aborted", it indicates that it was canceled while running in a background thread.
//  The ResultErrorText will likely indicate that the task was aborted.

//  If the task "completed", then it ran to completion, but the actual success/failure of the method
//  is determined by getting the result of the underlying method call.
//  A task status of 7 indicates completion.
if (task.StatusInt != 7) {
    Debug.WriteLine("Task did not complete.");
    Debug.WriteLine("task status: " + task.Status);

    return;
}

//  When called synchronously, the PostJson2 method returns an HTTP response object,
//  unless the method failed and there was no response to be had.
//  Check to see if PostJson2 method failed (and thus there is no response object).
if (task.TaskSuccess == false) {
    Debug.WriteLine("The underlying task failed, and there is no HTTP response object.");
    Debug.WriteLine("The LastErrorText for the underlying method call is:");
    Debug.WriteLine(task.ResultErrorText);

    return;
}

//  To get the HTTP response object, create a new instance and load it with the result from the task.
Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
resp.LoadTaskResult(task);

int statusCode = resp.StatusCode;
Debug.WriteLine("Response status code = " + Convert.ToString(statusCode));

//  Examine the JSON response..
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.Load(resp.BodyStr);
json.EmitCompact = false;
Debug.WriteLine("JSON Response Body:");
Debug.WriteLine(json.Emit());