Problem types

401

Missing or invalid credentials

https://tandem.codingful.com/problems/unauthorized

What it means

The request carried missing or invalid credentials.

Tandem does not produce this response. The library ships the endpoints, not the authentication — the Admin API is off by default and, when enabled, is mounted inside your application, so your own security layer owns who may call it. This problem type is published so that a host application securing those endpoints can return the same shape every other Tandem error uses, and a client can match on one slug rather than on whatever each deployment happens to emit.

What to do

As a caller: authenticate as the host application requires. As an operator: never expose the Admin API unauthenticated — it can replay, discard, and pause the relay.

Example

{
  "type": "https://tandem.codingful.com/problems/unauthorized",
  "title": "Missing or invalid credentials",
  "status": 401
}