Multi-Bank Payment Gateway Integration
Budget: ₹1,500 – ₹12,500 INR
I have a single goal: bring every payment that reaches my business—whether it comes through direct bank transfers, Google Pay, or a dedicated Android app—into one reliable gateway and report its “paid” status in real time.
Here is where the project stands:
• All of the banks I work with already expose live APIs. I will share their authentication keys and documentation so you can connect to each endpoint without having to build anything from scratch on the banking side.
• Google Pay must be plugged in alongside those bank APIs so customers see a seamless checkout flow.
• I also need a lightweight custom APK that lets staff initiate or confirm payments on-site, then pushes the same status updates back to the core gateway.
What I expect from you
1. Configure the gateway so it listens to every bank API I provide, posts transactions, and receives instant confirmation callbacks.
2. Wire Google Pay into the same flow.
3. Build the Android APK (targeting the latest stable SDK) that can:
– create a payment request,
– display the success/failure response,
– sync that response with the gateway endpoint.
4. Return clean, well-commented code, Postman collections for quick testing, and a brief deployment guide so my in-house team can reproduce the setup.
I’m open to suggestions on libraries or frameworks, but please keep everything within widely maintained, open-source stacks so long-term updates stay simple. Once the integration passes end-to-end tests—banks, Google Pay, and APK all returning the correct paid status—the job is done.
Here is where the project stands:
• All of the banks I work with already expose live APIs. I will share their authentication keys and documentation so you can connect to each endpoint without having to build anything from scratch on the banking side.
• Google Pay must be plugged in alongside those bank APIs so customers see a seamless checkout flow.
• I also need a lightweight custom APK that lets staff initiate or confirm payments on-site, then pushes the same status updates back to the core gateway.
What I expect from you
1. Configure the gateway so it listens to every bank API I provide, posts transactions, and receives instant confirmation callbacks.
2. Wire Google Pay into the same flow.
3. Build the Android APK (targeting the latest stable SDK) that can:
– create a payment request,
– display the success/failure response,
– sync that response with the gateway endpoint.
4. Return clean, well-commented code, Postman collections for quick testing, and a brief deployment guide so my in-house team can reproduce the setup.
I’m open to suggestions on libraries or frameworks, but please keep everything within widely maintained, open-source stacks so long-term updates stay simple. Once the integration passes end-to-end tests—banks, Google Pay, and APK all returning the correct paid status—the job is done.