About Authentication

Authentication Workflow

The typical flow for two-legged OAuth processing involves the following activities:

1. An OAuth client initiates a request with an authorization server and receives an access token.
2. The OAuth client uses the access token to access protected resources on the resource server.

Resource Interaction

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Access Token Lifespan

Access tokens have a 15 minute lifespan.

When interacting with the Interchecks Payments API and a 401 HTTP Status Code is returned, its likely the access token has expired. Re-authenticate using the oauth2/token endpoint to retreive a new access token.