Zig

List Google Calendars

See more Google Calendar Examples

Demonstrates how to list the Google Calendars for an account. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    // This example uses a previously obtained access token having permission for the
    // Google Calendar scope.

    // In this example, Get Google Calendar OAuth2 Access Token, the access
    // token was saved to a JSON file.  This example fetches the access token from the file..
    const json_token = try chilkat.JsonObject.init();
    defer json_token.deinit();
    try json_token.loadFile("qa_data/tokens/googleCalendar.json");
    if (!json_token.hasMember("access_token")) {
        std.debug.print("No access token found.\n", .{});
        return;
    }

    const http = try chilkat.Http.init();
    defer http.deinit();
    http.setAuthToken(try json_token.stringOf(alloc, "access_token"));

    const json_response = http.quickGetStr(alloc, "https://www.googleapis.com/calendar/v3/users/me/calendarList") catch {
        std.debug.print("{s}\n", .{try http.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("{s}\n", .{json_response});
    std.debug.print("-----------------------------\n", .{});

    // This is a sample JSON response:
    // (Sample code to iterate over the JSON response is shown below.)

    // {
    //  "kind": "calendar#calendarList",
    //  "etag": "\"p32cfpufit76da0g\"",
    //  "nextSyncToken": "CJj8-fLpzNUCEhhzdXBwb3J0QGNoaWxrYXRjbG91ZC5jb20=",
    //  "items": [
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1465249947472000\"",
    //    "id": "support@chilkatcloud.com",
    //    "summary": "support@chilkatcloud.com",
    //    "timeZone": "America/Chicago",
    //    "colorId": "14",
    //    "backgroundColor": "#9fe1e7",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "owner",
    //    "defaultReminders": [
    //     {
    //      "method": "popup",
    //      "minutes": 10
    //     }
    //    ],
    //    "notificationSettings": {
    //     "notifications": [
    //      {
    //       "type": "eventCreation",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventChange",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventCancellation",
    //       "method": "email"
    //      },
    //      {
    //       "type": "eventResponse",
    //       "method": "email"
    //      }
    //     ]
    //    },
    //    "primary": true
    //   },
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1502373382732000\"",
    //    "id": "#contacts@group.v.calendar.google.com",
    //    "summary": "Contacts",
    //    "timeZone": "America/Chicago",
    //    "colorId": "13",
    //    "backgroundColor": "#92e1c0",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "reader",
    //    "defaultReminders": []
    //   },
    //   {
    //    "kind": "calendar#calendarListEntry",
    //    "etag": "\"1502373376447000\"",
    //    "id": "en.usa#holiday@group.v.calendar.google.com",
    //    "summary": "Holidays in United States",
    //    "timeZone": "America/Chicago",
    //    "colorId": "8",
    //    "backgroundColor": "#16a765",
    //    "foregroundColor": "#000000",
    //    "selected": true,
    //    "accessRole": "reader",
    //    "defaultReminders": []
    //   }
    //  ]
    // }
    //

    // Iterate over the JSON response..
    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.load(json_response) catch {};

    const num_calendars = json.sizeOfArray("items");
    var i: i32 = 0;
    while (i < num_calendars) {
        std.debug.print("--- {d} ---\n", .{i});
        json.setI(i);
        std.debug.print("kind: {s}\n", .{try json.stringOf(alloc, "items[i].kind")});
        std.debug.print("id: {s}\n", .{try json.stringOf(alloc, "items[i].id")});

        // Examine the notification settings, if any..
        const num_settings = json.sizeOfArray("items[i].notificationSettings.notifications");
        if (num_settings > 0) {
            var j: i32 = 0;
            while (j < num_settings) {
                json.setJ(j);
                std.debug.print("Notification Type: {s}\n", .{try json.stringOf(alloc, "items[i].notificationSettings.notifications[j].type")});
                std.debug.print("Notification Method: {s}\n", .{try json.stringOf(alloc, "items[i].notificationSettings.notifications[j].method")});
                j = j + 1;
            }
        }

        i = i + 1;
    }
}