Best practice for OAuth 2.0 client management

When you implement OAuth 2.0 across multiple client applications, assign a unique client ID to each one instead of using a single ID for all.

It is important for these reasons:

  1. Security isolation

    Separate client IDs help contain the impact if one application gets compromised. Sharing credentials across apps increases the potential damage.

  2. Granular access control

    Different applications often require different scopes or access levels. Unique client IDs let you configure access precisely for each app.

  3. Better auditing and monitoring

    With individual client IDs, you can track token usage more effectively, spot irregularities, and troubleshoot problems for each app.

  4. Simplified revocation

    You can disable or revoke a single app without disrupting others.

  5. Improved lifecycle management

    Each app can be updated, retired, or deployed on its own, using its specific credentials.

  6. Compliance and policy enforcement

    You can apply policies, such as token lifetime or redirect URI checks, only when each app is registered individually.