Java solution please - How to look up a user by personal email address using graph api

Question

I am looking to get the details of any user in Azure B2C by providing the user's email address. I am using Microsoft graph API's in my Java code.
I am trying the following ('email' is a String parameter in the method):
-----
graphClient.users()
.buildRequest()
.filter("mail eq '" + email + "'")
.getAsync());
----
But the response what I get is:
{
"done": false,
"cancelled": false,
"completedExceptionally": false,
"numberOfDependents": 0
}

I am not looking for this response above but the user details - something like:
{
"@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
"value": [
{
"businessPhones": [],
"displayName": "First Last",
"givenName": null,
"jobTitle": null,
"mail": first.last@keyman .com",
"mobilePhone": null,
"officeLocation": null,
"preferredLanguage": null,
"surname": null,
"userPrincipalName": "firstLast@keyman .onmicrosoft.com",
"id": "04481a14-934q-416e-cc45-84072250b136"
}
]
}

in my "Java code", I repeat. Everything runs fine on Postman but not in Java code.

Answer 1

Hi @Zehui Yao_MSFT ,
Thanks very much for your response. I actually got the solution. I was missing few stuffs which I edged out:

UserCollectionPage users = graphClient.users()
.buildRequest()
.filter("mail eq '" + email + "'")
.get();

List<User> currentPage = (users != null) ? users.getCurrentPage() : null;

Now we can iterate through the list if it's not null. In this case, there can be only one element max in the list as email is unique, but otherwise we can get the users based on whatever filters we use.

Thanks again,
Anurag.