3. Create link payment (Support QR code)

Create link payment (Support QR code)

POST https://api.pos25.app/v1/cf-payment/generate_qr

The API generates link payment. You can generate a QR code from the link and Users can make payments on wallets such as Metamask, TRAM wallet,...

Headers

Name	Type	Description
Authorization*	String	Bearer <Token>

Request Body

Name	Type	Description
order_id*	String	Order id of transaction (UNIQUE)
amount*	String	Transaction amount
asset*	String	the asset the user wants to pay (the asset is taken from the API to get a list of supported assets)
chain_id*	String	chain_id is the blockchain the user wants to pay on, obtained from the supporting chain API
currency*	String	the currency the user wants to display instead of the blockchain asset (with added transaction fees)
fee_value*	String	Transaction fee
serial_number*	String	serrial number of POS device

200 success

{
    "data": {
        "qr_url": "https://app.pos25.app/qr-scan?&order_id=010001&contract_address=0x48736b8AC81E0fa279b571B25C698D631a4407A1&currency_address=0x55d398326f99059ff775485246999027b3197955&transaction_amount=0.001&act=DEPOSIT&chain_id=22222&decimal=6",
        "rate_usd": 23000,
        "expire_at": "04/11/2023 22:50:31"
    },
    "errors": [],
    "msg": "",
    "error_code": ""
}

403: Forbidden Required Authorization in header

{
    "data": {},
    "errors": [
        {
            "user": "Invalid"
        }
    ],
    "msg": "Forbidden",
    "error_code": "E_FORBIDDEN"
}

400: Bad Request error during processing (see field errors)

{
    "data": {},
    "errors": [
        {
            "serial_number": [
                "Missing data for required field."
            ],
            "fee_value": [
                "Missing data for required field."
            ]
        }
    ],
    "msg": "Invalid data",
    "error_code": "E_BAD_REQUEST"
}

Let's see how you can call this method either through Curl or Python:

Curl

curl --location 'https://api.pos25.app/v1/cf-payment/generate_qr' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer 8d1300ea96d3cca64918f871318864c6' \
--data '
{
    "order_id": "010001",
    "amount": "0.001",
    "asset": "USDT",
    "chain_id": 22222,
    "currency": "USD",
    "fee_value": "0",
    "serial_number": "00024500706"
}

'