Selling crypto using Bank Transfer payment method, Automation Bot boilerplate

A sample application that you can use as a boilerplate for writing bot that would automate selling crypto using Bank Transfer payment method.

Use it at your own risk!

Running App

1. Make sure that your API key has Paxful API product added
2. Update .env file and set the API secret
3. Deploy the app somewhere OR use ngrok (for ngrok howto see below). As a result you should have a publicly accessible URL. You will need to use it in step 7) below
4. Run npm i to install dependencies
5. Run node app.js to start the application
6. Create webhook for trade.started, trade.paid, trade.chat_message_received events (scroll to the bottom of Direct access section). For target URL use one that you got in step 4), but append to it /paxful/webhook suffix. So if you had https://example.com, then when configuring webhooks you should use https://example.com/paxful/webhook
7. Create a sell offer on Paxful with Bank Transfer payment method, and then initiate a trade upon it from another account.

Once a trade is started upon an offer, then this application will automatically detect it (thanks to webhooks you setup earlier) and then handles the trade process. In order to emulate a callback from your bank (when fiat transfer is received in your bank account), you need to issue a POST request to /bank/transaction-arrived with the following structure:

{
   "reference": "dfwWnKXpZtV",
   "amount": 123,
   "currency": "EUR"
}

In real world implementation parameters are very likely to have different names. Whatever names the parameters have, the payload must include a reference that a buyer specified for the payment (in the example above - reference)

• the application will use it to cross-reference and detect what trade this bank transfer is related to.

Using ngrok

The application by default will be listening on http://localhost:3000, so if you haven't changed the port, then once you have ngrok installed on your machine, you can run the following command to receive a publicly accessible URL that you can use for registering as a webhook target on paxful.com:

ngrok http 3000