# Swap-to-Pay Payment

A "swap-to-pay" payment is where the payment sender sends one currency but the payment recipient receives a different currency.

## Functions:

{% @github-files/github-code-block url="<https://github.com/RequestNetwork/requestNetwork/blob/master/packages/payment-processor/src/payment/swap-erc20-fee-proxy.ts>" %}

## Tests:

{% @github-files/github-code-block url="<https://github.com/RequestNetwork/requestNetwork/blob/master/packages/payment-processor/test/payment/swap-erc20-fee-proxy.test.ts>" %}