我对使用 Google Calendar API 在 ASP.NET webforms (C#) 中添加/修改事件感到困惑。
我不确定我是否需要 oAuth 或什么。我的应用程序在我自己的服务器上,访问我自己的域和我自己的日历。我不需要其他用户让我访问他们的日历;我只需要通过我的应用程序访问我自己的。
在我的一个 aspx 页面上,我想将活动信息发送到我的 Google 日历以添加(或稍后修改)活动。
我检查了各种代码示例和 Google 入门指南。我只是不清楚到底需要什么。我已经设置了一个 API 密钥和一个 oAuth2 客户端 ID。谷歌说明让我陷入困境,这可能是因为我需要澄清需要什么。
有人可以消除我的困惑并指出正确的方向吗?
调用 google clould oauth2 保护资源
从您的服务器到谷歌服务器
无需用户交互
访问您自己的数据
使用 C#
代码:
var private_key = @"-----BEGIN PRIVATE KEY-ccc-END PRIVATE KEY-----\n";
string calendarId = @"[email protected]";
var client_email = @"[email protected]";
var credential =
new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(client_email)
{
Scopes = new string[] { CalendarService.Scope.Calendar }
}.FromPrivateKey(private_key));
var service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
});
使用service方法获取数据
日历 ID 可以在 calendar.google.com 上找到
你必须与client_email分享你的日历看演示
Google You You
Pay + Pay + Pay +
Google Google You
Manage Manage Manage%
+----------+ +----------+ +----------+
| Gmail | | | | |
| Calendar | | G Suite | | Google |
| drive | | | | Cloud |
| | | | | |
+----^-----+ +----+-----+ +------+---+
| ^ ^
| | |
| | |
| | |
+-------------------------------------------------------------+
| | | | |
| | | | |
| | | Google | |
| | | Oauth2 | |
| | | Server | |
| | | | |
| | | | |
+-------------------------------------------------------------+
| | |
| | +----------------+ |
| | | | |
| | | | | No
| |require | | | Consent
| |admin | | |
| |consent | | |
|require | | +-------+
|user | | |
|consent +---------+ Your app |
| | |
| | |
| | |
| | |
+-------------------------+ |
| |
| |
| |
+----------------+
You
Pay +
You
Manage
https://console.developers.google.com/projectselector/apis/library/calendar-json.googleapis.com
Install-Package Google.Apis.Calendar.v3
using Google.Apis.Auth.OAuth2;
using Google.Apis.Calendar.v3;
using Google.Apis.Calendar.v3.Data;
using Google.Apis.Services;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
namespace CalendarQuickstart
{
class Program
{
static void Main(string[] args)
{
string jsonFile = "xxxxxxx-xxxxxxxxxxxxx.json";
string calendarId = @"[email protected]";
string[] Scopes = { CalendarService.Scope.Calendar };
ServiceAccountCredential credential;
using (var stream =
new FileStream(jsonFile, FileMode.Open, FileAccess.Read))
{
var confg = Google.Apis.Json.NewtonsoftJsonSerializer.Instance.Deserialize<JsonCredentialParameters>(stream);
credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(confg.ClientEmail)
{
Scopes = Scopes
}.FromPrivateKey(confg.PrivateKey));
}
var service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "Calendar API Sample",
});
var calendar = service.Calendars.Get(calendarId).Execute();
Console.WriteLine("Calendar Name :");
Console.WriteLine(calendar.Summary);
Console.WriteLine("click for more .. ");
Console.Read();
// Define parameters of request.
EventsResource.ListRequest listRequest = service.Events.List(calendarId);
listRequest.TimeMin = DateTime.Now;
listRequest.ShowDeleted = false;
listRequest.SingleEvents = true;
listRequest.MaxResults = 10;
listRequest.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime;
// List events.
Events events = listRequest.Execute();
Console.WriteLine("Upcoming events:");
if (events.Items != null && events.Items.Count > 0)
{
foreach (var eventItem in events.Items)
{
string when = eventItem.Start.DateTime.ToString();
if (String.IsNullOrEmpty(when))
{
when = eventItem.Start.Date;
}
Console.WriteLine("{0} ({1})", eventItem.Summary, when);
}
}
else
{
Console.WriteLine("No upcoming events found.");
}
Console.WriteLine("click for more .. ");
Console.Read();
var myevent = DB.Find(x => x.Id == "eventid" + 1);
var InsertRequest = service.Events.Insert(myevent, calendarId);
try
{
InsertRequest.Execute();
}
catch (Exception)
{
try
{
service.Events.Update(myevent, calendarId, myevent.Id).Execute();
Console.WriteLine("Insert/Update new Event ");
Console.Read();
}
catch (Exception)
{
Console.WriteLine("can't Insert/Update new Event ");
}
}
}
static List<Event> DB =
new List<Event>() {
new Event(){
Id = "eventid" + 1,
Summary = "Google I/O 2015",
Location = "800 Howard St., San Francisco, CA 94103",
Description = "A chance to hear more about Google's developer products.",
Start = new EventDateTime()
{
DateTime = new DateTime(2019, 01, 13, 15, 30, 0),
TimeZone = "America/Los_Angeles",
},
End = new EventDateTime()
{
DateTime = new DateTime(2019, 01, 14, 15, 30, 0),
TimeZone = "America/Los_Angeles",
},
Recurrence = new List<string> { "RRULE:FREQ=DAILY;COUNT=2" },
Attendees = new List<EventAttendee>
{
new EventAttendee() { Email = "[email protected]"},
new EventAttendee() { Email = "[email protected]"}
}
}
};
}
}
string jsonFile = "xxxxxxx-xxxxxxxx.json";
string calendarId = @"[email protected]";
2019/01/13
非常感谢您的教程。它工作得很好。
不过我遇到了麻烦,我在目标帐户中创建了另一个日历,虽然我的主日历 ID 是我的电子邮件地址,但新创建的日历 ID 是一长串字符 @group.calendar.google.com 这不是试图瞄准它时发现。在这种情况下我可能做错了什么?