Get Message (EVM USDC/SBC/EuroE only)

Gets any messages to be signed by the user, the signed message is then passed as the evmPermitMessage body property into the /api/withdraw/evm/transaction endpoint.

This is only necessary for EVM chains.

Gets any messages to be signed by the user, the signed message is then passed as the evmPermitMessage body property into the /api/withdraw/evm/transaction endpoint.

This is only necessary for EVM chains.

Authentication

x-coinflow-auth-walletstring

The web3 wallet of the end user - see https://docs.coinflow.cash/api-reference/api-reference/authentication/get-session-key

x-coinflow-auth-blockchainstring

The blockchain associated with the end user - see https://docs.coinflow.cash/api-reference/api-reference/authentication/get-session-key

x-coinflow-auth-session-keystring

The session key generated for the end user - see https://docs.coinflow.cash/api-reference/api-reference/authentication/get-session-key

Request

This endpoint expects an object.

amountdoubleRequired

tokenobjectOptional

From T, pick a set of properties whose keys are in the union K

userLocationobjectOptional

End-user geographic coordinates captured at the moment of the withdrawal request. Consumed by BlockingRuleMethod.GEOLOCATION enforcement.

Replay-of-different-coords bypass is prevented server-side: the first resolved {country, state} for a given (merchant, user) pair is pinned in Redis, and subsequent requests are evaluated against that pinned value regardless of the lat/lng they submit.

Response

messagestring or null

The message that needs to be typed signed by the user's EVM wallet.

This endpoint expects an object.

From T, pick a set of properties whose keys are in the union K

End-user geographic coordinates captured at the moment of the withdrawal request. Consumed by BlockingRuleMethod.GEOLOCATION enforcement.

The message that needs to be typed signed by the user's EVM wallet.

$	curl -X POST https://api-sandbox.coinflow.cash/api/withdraw/evm/message \
>	-H "x-coinflow-auth-wallet: <apiKey>" \
>	-H "Content-Type: application/json" \
>	-d '{
>	"amount": 150.75
>	}'

$	curl -X POST https://api-sandbox.coinflow.cash/api/withdraw/evm/message \
>	-H "x-coinflow-auth-wallet: <apiKey>" \
>	-H "Content-Type: application/json" \
>	-d '{
>	"amount": 150.75
>	}'

1	{
2	"message": "Please sign this message to authorize withdrawal of 150.75 USDC from your wallet."
3	}