I want to call Token API from Microsoft graph in angular 7+ http call

Question

From angular application i want to call https://login.microsoftonline.com/##tenant##/oauth2/v2.0/token api to get access token from http call and using that token i want to call https://graph.microsoft.com/v1.0/users/##UserId##/getMemberGroups API without using any npm package of angular.

I tried using http service, but getting below error

Access to XMLHttpRequest at 'https://login.microsoftonline.com/xxxx/oauth2/v2.0/token' from origin 'https://xxx.co' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Is there any another way to call Graph API for token and user get login user groups ?

Try to see the implicit grant flow to get access token.

unknown
– unknown

2020-12-23 13:56:22 +00:00
Commented Dec 23, 2020 at 13:56 — unknown
– unknown, Commented Dec 23, 2020 at 13:56

Stanley Gong · Accepted Answer · 2021-01-04 01:44:54Z

2

It is not allowed to call https://login.microsoftonline.com/<tenant>/oauth2/v2.0/token directly from a signal page application due to CORS. You should use MSAL for angular to do this. My code is based on this angular official demo.

Pls go to src/app/app.module.ts to config your Azure Ad:

and run this demo first.

After you run this demo successfully,go to profile.component.ts, add codes below:

  getAccessTokenAndCallGraphAPI(){

    this.authService.acquireTokenPopup({
      scopes: ['GroupMember.Read.All']
    }).then(result=>{
      console.log("access token: "+ result.accessToken)

      const httpOptions = {
        headers: new HttpHeaders({
          'Content-Type':  'application/json',
          Authorization: 'Bearer '+result.accessToken
        })}

      const reqBody = {
        "securityEnabledOnly": true
      }
      this.http.post("https://graph.microsoft.com/v1.0/users/<user you want to query>/getMemberGroups",reqBody,httpOptions).toPromise().then(result=>{console.log(result)});
    })
  }

Call this function when init page:

ngOnInit() {
    this.getProfile();
    this.getAccessTokenAndCallGraphAPI();
  }

result:

Let me know if you have any other questions.

edited Jan 4, 2021 at 1:44

answered Dec 24, 2020 at 6:17

Stanley Gong

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1 Comment

Lenzman Over a year ago

An argument for 'interceptorConfig' was not provided. This error occurs in app.module with the above code

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