英文:
Send a chat message into MS Teams as MS Teams app with access token
问题
是可能将聊天消息发送到 MS Teams 中的 1:1 聊天作为已注册应用程序吗？
例如：
每小时触发一个定时任务，并发送一个带有访问令牌的 MS Graph 请求，以将聊天消息发送到具有特定 ID 的聊天中。
英文:
Is it possible to send a chat message into MS Teams 1:1 chat as a registered app?
For example:
Every one hour a cron is triggered and sends a MS Graph request (with an access token) to send a chat message into a chat with a specific id.
答案1
得分: 0
简单回答：是的，这是可能的。
你需要代表用户获取对MS Graph的访问权限，因为一个应用程序本身无法发送聊天消息。
按照这个教程：https://learn.microsoft.com/en-us/graph/auth-v2-user
步骤概要：
1）注册一个应用程序
2）为应用程序分配API权限
3）由你的组织同意这些权限
4）获取用户的授权码（修改并将其粘贴到浏览器中：https://login.microsoftonline.com/{tenant}/oauth2/v2.0/authorize?client_id={application_id}&response_type=code&redirect_uri=https://localhost:7193/api/test/authRedirect&response_mode=query&scope=offline_access%20user.read%20chat.read%20chat.ReadWrite&state=12345
5）复制上一个响应中的“code”
6）使用上述教程中的参数调用POST https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token
7）完成！你现在有了调用MS Graph API的访问令牌
我在作用域方面遇到了问题。在教程中还请求了一个“mail.read”作用域。但是我无法获得带有这个作用域的令牌。所以为了测试，我只保留了“user.read”作用域，然后在它起作用后，我尝试了其他附加作用域。
当你更改作用域时，你需要重复第4步来获取新的授权码。
英文:
Simple answer: YES, it's possible.
You need to get access to MS graph on behalf of a user, because an App on it's own cannot send chat messages.
Follow this tutorial: https://learn.microsoft.com/en-us/graph/auth-v2-user
Summary of steps:
- Register an App
- Give the App Api permissions
- Consent with permissions by your organisation
- Get user authorization_code (modify and paste this into your browser: https://login.microsoftonline.com/{tenant}/oauth2/v2.0/authorize?client_id={application_id}&response_type=code&redirect_uri=https://localhost:7193/api/test/authRedirect&response_mode=query&scope=offline_access%20user.read%20chat.read%20chat.ReadWrite&state=12345
- copy a "code" from previous response
- Call POST https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token with parameters from tutorial mentioned above
- Tadaaa!! You have your access token for calling the MS Graph API
I ran into an issue with scopes. In the tutorial a scope "mail.read" is requested as well. But I was unable to obtain a token with this scope. So for testing purposes I leave only "user.read" scope and after it worked I experimented with additional scopes.
When you change the scope, you need to repeat the step 4. to get a new authorization_code
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