The APK contains more than endpoint names
An integration needs the same state and request rules as the app. We map hosts, routes, methods, models, file transfers and real-time channels. Then we recover login, token refresh, cookies, device registration, pagination, retries and the order shared across workflows.
Android App Bundles can split code and resources by device configuration. Google documents base modules, feature modules, configuration APKs and asset packs. We collect the installed split set when one APK does not contain the whole application. Native libraries and runtime-loaded code are included in the map.
Reconstruct every protocol layer
The app may use REST for account data, WebSockets for live updates, protobuf for compact messages and a separate upload host for files. We join these paths into one client instead of treating each capture as an isolated request.
Dynamic fields are rebuilt at their source. Signatures use fresh canonical request data. Encryption and decryption match the app’s key, nonce, padding and encoding rules. Stateful calls keep their cookies, tokens, request counters and prior server values. The result can run as a service, scheduled job or part of an existing backend.
The full APK becomes a full callable API
We rebuild the application’s complete server-facing behavior. The delivery includes Python, JavaScript and TypeScript clients, an importable Postman collection, and working request examples. Authentication, cookies, refresh rules, request order and error handling are built in.
Signature generation runs with fresh timestamps and nonces. Encryption and decryption are implemented in code. Binary bodies are serialized correctly. Each client can start a new session and repeat the application workflows without reusing an old capture.
We test the clients against the same server flows used by the APK. Send the APK on WhatsApp or by email. We handle the technical questions in the conversation.
Sources
Reviewed 30 August 2026 · SReverse research desk