Obtain a short-lived access token for authenticated endpoints

Exchanges a signed JWT assertion for a short-lived access token, using the RFC 7523 JWT-bearer grant. To call this, sign an assertion with the private key of a key pair whose public key was registered for your store when your integration was set up (credentials are issued during that setup, not obtained here). Send the returned token as `Authorization: Bearer <token>` on endpoints that require it; it expires quickly, so request a fresh one as needed rather than caching it long-term.

Headers

x-entriastringRequired
Identifies which store this request is for. Required on every store-scoped route. It is not authentication and not a secret — it grants no privileges and is safe to send from a browser. You receive the value once your Entria backend has been created and configured. Missing header returns 400; an unknown store returns 404.

Request

This endpoint expects an object.
grant_typeenumRequired

Must be the RFC 7523 JWT-bearer grant type string.

Allowed values:
assertionstringRequired

A short-lived JWT signed with your private key, identifying your registered client and this store.

Response

Access token issued
access_tokenstring
The bearer token to use on authenticated requests.
token_typeenum
Allowed values:
expires_indouble

Seconds until the access token expires; request a new one after this.

Errors

400
Bad Request Error
401
Unauthorized Error