curl --location --request POST 'https://api.bridge.xyz/v0/transfers' \
--header 'Api-Key: <API Key>' \
--header 'Idempotency-Key: <Unique Key>' \
--header 'Content-Type: application/json' \
--data-raw '{
  "amount": "100.00",
  "on_behalf_of": "cust_12345", // id of the customer who owns the wallet and ext. account
  "source": {
    "payment_rail": "bridge_wallet",
    "currency": "usdb",
    "bridge_wallet_id": "wallet_abc123" // id of the bridge wallet with funds
  },
  "destination": {
    "payment_rail": "ach",
    "currency": "usd",
    "external_account_id": "ext_account_xyz789" // id of the customer bank account
  }
}'

curl --location --request GET 'https://api.bridge.xyz/v0/transfers/transfer_xyz' \
--header 'Api-Key: <API Key>' \
--header 'accept: application/json'

{
  "id": "transfer_xyz",
  "state": "payment_processed",
  "amount": "100.00",
  "source": { ... },
  "destination": {
    "payment_rail": "ach",
    "currency": "usd",
    "external_account_id": "ext_account_xyz789"
  },
  ...
}