.NET Core C#

HttpPostJson2Async Example

Demonstrates use of the HttpPostJson2Async method. .NET Core C#

bool success = false;

// 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();

// 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());