(MFC) Get all Tasks on a List

Demonstrates how to get all the tasks in a Google task list.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkFileAccess.h>
#include <CkHttp.h>
#include <CkHttpResponse.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    // Get the previously obtained access token.
    // See Get Google Tasks Access Token.

    CkFileAccess fac;
    const char *accessToken = fac.readEntireTextFile("qa_data/tokens/googleTasks.txt","utf-8");
    if (fac.get_LastMethodSuccess() != true) {
        strOut.append(fac.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    CkHttp http;

    http.put_AuthToken(accessToken);

    // Get the tasks from the task list w/ id = MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzow
    http.SetUrlVar("tasklist","MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzow");

    CkHttpResponse *resp = http.QuickGetObj("https://www.googleapis.com/tasks/v1/lists/{$tasklist}/tasks");
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Show the response body.
    strOut.append(resp->bodyStr());
    strOut.append("\r\n");

    // Examine the response status code.
    strOut.append("response status code: ");
    strOut.appendInt(resp->get_StatusCode());
    strOut.append("\r\n");

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    const char *kind = 0;
    const char *etag = 0;
    int i;
    int count_i;
    const char *id = 0;
    const char *title = 0;
    const char *updated = 0;
    const char *selfLink = 0;
    const char *position = 0;
    const char *notes = 0;
    const char *status = 0;
    const char *due = 0;

    CkJsonObject json;
    json.Load(resp->bodyStr());

    kind = json.stringOf("kind");
    etag = json.stringOf("etag");
    i = 0;
    count_i = json.SizeOfArray("items");
    while (i < count_i) {
        json.put_I(i);
        kind = json.stringOf("items[i].kind");
        id = json.stringOf("items[i].id");
        etag = json.stringOf("items[i].etag");
        title = json.stringOf("items[i].title");
        updated = json.stringOf("items[i].updated");
        selfLink = json.stringOf("items[i].selfLink");
        position = json.stringOf("items[i].position");
        notes = json.stringOf("items[i].notes");
        status = json.stringOf("items[i].status");
        due = json.stringOf("items[i].due");
        i = i + 1;
    }

    delete resp;

    // Sample response:

    // {
    //  "kind": "tasks#tasks",
    //  "etag": "\"84_7Cubo3y98GMV9bE3zQclHxhc/LTM3Njg4MjgyNA\"",
    //  "items": [
    //   {
    //    "kind": "tasks#task",
    //    "id": "MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzoyMDg3OTcyMDA1MTQ5NTA0",
    //    "etag": "\"84_7Cubo3y98GMV9bE3zQclHxhc/NjcyMTU4Mg\"",
    //    "title": "Get haircut",
    //    "updated": "2019-04-04T18:07:58.000Z",
    //    "selfLink": "https://www.googleapis.com/tasks/v1/lists/MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzow/tasks/MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzoyMDg3OTcyMDA1MTQ5NTA0",
    //    "position": "00000000001610612734",
    //    "notes": "Check in online first.",
    //    "status": "needsAction",
    //    "due": "2019-04-07T00:00:00.000Z"
    //   },
    //   {
    //    "kind": "tasks#task",
    //    "id": "MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzoxMTg0MzQxMTkzMjM2MDY1",
    //    "etag": "\"84_7Cubo3y98GMV9bE3zQclHxhc/MTU1MjQzNDIwMQ\"",
    //    "title": "Go to grocery store",
    //    "updated": "2019-04-04T17:59:15.000Z",
    //    "selfLink": "https://www.googleapis.com/tasks/v1/lists/MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzow/tasks/MDM4MzQ4NTA3NDQwMDUxMzQ2OTQ6NzAwOTA4MDA1NzU2ODYwMzoxMTg0MzQxMTkzMjM2MDY1",
    //    "position": "00000000002147483647",
    //    "notes": "Don't forget to buy apples.",
    //    "status": "needsAction",
    //    "due": "2019-04-07T00:00:00.000Z"
    //   }
    //  ]
    // }
    // 
    // response status code: 200


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }