Azure AD B2C Custom User Attributes

Question

I\'m new to the Azure B2C world. I\'m attempting to create a Custom User attribute to store data for our application. I\'ve created it in the Azure portal and assigned it

Answer 1

Are extensions/custom attributes the same thing?

Based on my test, extensions is the same thing as custom attributes.

I've tried this code and the returned extensions are always empty:

I add the custom propery MyCustomAttribute following this tutorial and use a custom attribute in my policy. You could refer to my test steps.

I download the B2C-GraphAPI-DotNet project from Github. Using following code to the custom attribute

var applications = client.GetApplications("$filter=startswith(displayName, 'b2c-extensions-app')").Result

var extension = client.GetExtensions(objectId).Result //objectId from the applications result.

Then we could get the custom properties from the extension.

Then you can then treat that attribute the same way you treat any other property on a user object

Such as create a user:

var jsonObject = new JObject
            {
                {"accountEnabled", true},
                {"country", "US"},
                {"creationType", "LocalAccount"},
                {"displayName", "Tomsun"},
                {"passwordPolicies", "DisablePasswordExpiration,DisableStrongPassword"},
                { "extension_42ba0de8530a4b5bbe6dad21fe6ef092_MyCustomAttribute","test2"},  //custom propery
                {"passwordProfile", new JObject
                {
                    {"password", "!QAZ1234wer"},
                    {"forceChangePasswordNextLogin", true}
                } },
                {"signInNames", new JArray
                    {
                        new JObject
                        {
                            {"value","tom1@example.com"},
                            {"type", "emailAddress"}
                        }
                    }
                }
            };

string user = client.CreateUser(jsonObject.ToString()).Result;

Query a user

var user = client.GetUserByObjectId(objectId).Result; //user objectId

Update a user

var jsonUpdate = new JObject
            {  
                { "extension_42ba0de8530a4b5bbe6dad21fe6ef092_MyCustomAttribute","testx"}

            };
var updateuser = client.UpdateUser("objectId", jsonObject2.ToString()).Result; //UserObject Id