Dev
Mock OAuth Token Response Generator
Token-handling code — parsing the response, storing the access token, scheduling a refresh before expiry — is straightforward to unit-test once you have a realistic response object to work with. Getting that object without calling a real authorization server means maintaining a hardcoded JSON fixture, which goes stale. This tool generates a fresh, well-formed OAuth 2.0 token response on demand. The output is a JSON object with five fields: access_token (40 random alphanumeric characters), token_type (always Bearer), expires_in (randomly 3600, 7200, or 86400 seconds), refresh_token (48 random characters), and scope (one of read, read write, openid profile email, or read write admin). The structure mirrors what providers like GitHub, Google, and Auth0 return. Paste the JSON into a test fixture or mock server handler. Use it to test that your code correctly reads the access_token, respects the expires_in value when scheduling a refresh, and stores the refresh_token. For integration tests, swap in real responses from your identity provider rather than the mock.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Click Generate to produce a token response.
- Copy the JSON into your test or mock server.
- Use it to exercise token-handling code.
- Swap in real responses for integration tests.
Use Cases
- •Testing OAuth token-handling code
- •Building a mock auth endpoint
- •Demoing a token refresh flow
- •Seeding an API client with a sample token
- •Exercising token storage and expiry logic
Tips
- →Use it to test parsing and storage safely.
- →The tokens authenticate nothing.
- →Test real flows against your provider.
- →Cover expiry and refresh handling.
FAQ
what fields are in an OAuth token response
A standard OAuth 2.0 token response includes access_token, token_type (usually Bearer), expires_in seconds, and often a refresh_token and a scope. This mock includes all of them so your code can parse and handle a realistic payload.
do these tokens actually work
No. The token strings are random and authenticate against nothing, which is exactly why they are safe to use in tests and demos. They let you exercise parsing, storage, and expiry logic without touching a real authorization server.
when should I use real token responses
During integration testing against your actual identity provider. The mock is perfect for unit tests and building your handling logic in isolation, but real flows — including error cases and provider-specific fields — should be tested against the live service.
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