Testing

Mainnet testing is the recommended way to verify your integration: complete a real deposit with a small amount of real funds. A testnet sandbox is available for development without real funds, but it supports a limited set of networks and is significantly slower than mainnet.

End-to-end verification

Follow this sequence to verify your integration:

Generate a key pair

Use the instructions in Key Generation.

Provide your public key to Blink (Merchant Registration).

Configure your signer

Set the private key and merchant ID on your signer endpoint.

Launch the deposit flow

Call requestDeposit() from your app.

Complete a test payment

Walk through the hosted flow iframe to complete a payment.

Verify the result

The DepositResult should contain a transfer.id and transfer.status.

Debug mode

Enable debug logging to trace the full SDK lifecycle during development:

const deposit = new Deposit({
  signer: '/api/sign-payment',
  debug: true,
});

This logs signer calls, iframe state transitions, postMessage events, and errors to console.debug with the [BlinkDeposit] prefix.

⌘I

Getting Started

Integration Guide

End-to-end verification

Debug mode

​End-to-end verification

​Debug mode

End-to-end verification

Debug mode