We currently support three kinds of authentication. These can be configured via the App setup page.
API key
This method will either append the merchants API key as a header or query parameter. You can configure the field name and location.
Bearer token
This method we will automatically attach an Authorization header to your requests. The value entered by your customer will prepended with "Bearer".
Authorization: Bearer YW5keTpjYXJnaW5keTpjYXJnaWxs
Basic flow
This method we will automatically attach an Authorization header to your requests. The value entered by your customer will prepended with "Basic".
Authorization: Basic YW5keTpjYXJnaWxs