title: move bulk users upload from local db to azure b2c active directory in JAVA
body: <p>I am trying to make a console app in java through which I want to migrate more than 100000 users to Azure AD B2C.</p>
  <p>We are using Graph API for this purpose.</p>
  <p>I have created a JSON format file which has a list of users, looks like below :</p>
  <pre><code>{
    &quot;users&quot;: [
      {
        &quot;displayName&quot;: &quot;Amanda Polly&quot;,
        &quot;givenName&quot;: &quot;Amanda&quot;,
        &quot;surname&quot;: &quot;Polly&quot;,
        &quot;extension_user_type&quot;: &quot;user&quot;,
        &quot;identities&quot;: [
          {
            &quot;signInType&quot;: &quot;emailAddress&quot;,
            &quot;issuerAssignedId&quot;: &quot;amandapolly@gmail.com&quot;
          }
        ],
        &quot;extension_timezone&quot;: &quot;PST&quot;,
        &quot;extension_locale&quot;: &quot;en-US&quot;,
        &quot;extension_tenant&quot;: &quot;EG1234&quot;
      },
      {
        &quot;displayName&quot;: &quot;Lowa Doe&quot;,
        &quot;givenName&quot;: &quot;Lowa&quot;,
        &quot;surname&quot;: &quot;Doe&quot;,
        &quot;extension_user_type&quot;: &quot;user&quot;,
        &quot;identities&quot;: [
          {
            &quot;signInType&quot;: &quot;userName&quot;,
            &quot;issuerAssignedId&quot;: &quot;lowadow123&quot;
          }
        ],
        &quot;extension_timezone&quot;: &quot;PST&quot;,
        &quot;extension_locale&quot;: &quot;en-US&quot;,
        &quot;extension_tenant&quot;: &quot;EG1234&quot;
      }
     ]
  }
  </code></pre>
  <p>I have this in a (dot)json file, i have to use this file and create users in b2c active directory using graph API, need help in starting.</p>