Authenticate a user on Azure AD B2C using Graph API

Question

I have created a WebApi app which can create a user on Azure AD B2C tenant using Graph API.

Now the user has to authenticate on Azure AD B2C as the same way I have u

Answer 1

It is not possible to authenticate an user in azure AD using graph API. Graph API provides methods to various AD related operations on the users, signed on user, groups, directory roles, policies and so on. https://msdn.microsoft.com/en-us/library/azure/ad/graph/api/users-operations