Integration Tooling

Banking Integration Mock Platform

Full Stack Developer

This project is relevant for clients who need integration tooling, mock APIs, sandbox environments, developer platforms, banking or fintech integration support, internal tools, or full-stack TypeScript application development.

Overview

This project was an internal mock integration platform for banking-service development.

The goal was to help development teams continue working when real external banking services were unavailable, unstable, or reachable only from restricted networks.

What The Team Needed

The team needed a simple way to create reliable mock endpoints:

The main challenge was building a useful developer tool without depending on real banking data or real external services.

  • Create projects for integration work
  • Group mock services under each project
  • Define endpoints with methods and paths
  • Configure static JSON or XML responses
  • Generate mock URLs for developers
  • Capture request logs for troubleshooting
  • Mask sensitive fields before storing logs
  • Run the platform locally with Docker Compose

My Full Stack Work

I built the application as a TypeScript monorepo with a Next.js frontend, Express backend, MongoDB persistence, and shared contracts.

Key work included:

  • Next.js workspace UI
  • Express API routes
  • MongoDB data model and repositories
  • Shared TypeScript types
  • Login and registration
  • Password hashing and HTTP-only JWT cookie sessions
  • Project CRUD
  • Mock service CRUD
  • Endpoint CRUD
  • JSON/XML response configuration
  • Generated mock runtime URLs
  • Runtime mock serving under slug-based paths
  • Simple path-variable matching
  • Request logging
  • Sensitive header/body masking
  • Docker Compose setup for web, API, and MongoDB

Why This Project Is Relevant

This project is relevant for clients who need practical integration tooling.

It is useful for clients who need:

It shows the ability to build a focused developer platform that removes external-service blockers and makes integration testing more predictable.

  • Mock APIs
  • Banking or fintech integration support
  • Sandbox-style development tools
  • Internal developer platforms
  • API request logging
  • JSON/XML endpoint simulation
  • Full-stack TypeScript development
  • Dockerized local environments

Project Images

Banking Integration Mock Platform system visual 1Banking Integration Mock Platform system visual 2Banking Integration Mock Platform system visual 3

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