One endpoint rarely explains the workflow
A working app can make a bootstrap call, register the install, fetch configuration, log in, exchange a token, load account state and request a challenge before the visible action runs. Skipping one step can produce a 401, 403, empty response or a new server state that looks unrelated to the missing call.
We record the sequence from a app start with no saved session. Each step is tied to the values it creates, consumes or changes. That exposes hidden dependencies such as a cookie set by a redirect, a request ID reused by the next call or a server-selected region stored in memory.
Cookies and tokens follow separate rules
HTTP cookies have domain, path, expiry, security and same-site rules. OAuth access tokens and refresh tokens have their own issue and refresh flow. Apps can use both at once. We reproduce the real storage and update rules instead of placing every value in one static header list.
Failures are part of the state machine
The client handles expired access tokens, invalid refresh tokens, lost cookies, duplicate submissions and challenges that can only be used once. We test a new account session, repeated use and recovery after expiry. This makes the API usable as a service rather than a demo that runs once.
What you receive
The full APK becomes a complete callable API in Python and JavaScript/TypeScript with a Postman collection. Every app workflow includes request order, sessions, cookies, authentication, signature generation, encryption and decryption, response models, retries and clear error output.
Reviewed 30 August 2026 · SReverse research desk