Payment Terminal is a separate service which can help you to display your deposit address as a web page or embed it into your website as an i-frame.
As a merchant you need to generate a GET URL with a set of the established parameters according to the requirements below and redirect a user via that link to Payment Terminal. Data available for the user includes address and QR-code, currency and deposit amount (in case ‘amount’ parameter was sent).
Once the user makes a deposit, it will be processed according to common deposit flow.
You need to create a request which contains hash with two required parameters: data and signature.
The request address:
https://terminal.coinspaid.com/?'data and signature'
You need to form JSON with the following parameters
Example:
{"client_id":1 ,"url_back":"https:\/\/coinspaid.com\/?1588146480","amount":0.0005,"foreign_id":"15881464801588146480","currency":"BTC","convert_to":"EUR"}
You need to convert the resulting represented code in JSON to base64 format.
Example:
eyJhZGRpdGlvbmFsX3BhcmFtZXRlcnMiOnsiY2xpZW50X2lkIjoxfSwidXJsX2JhY2siOiJodHRwczpcL1wvY29pbnNwYWlkLmNvbVwvPzE1ODgxNDY0ODAiLCJhbW91bnQiOjAuMDAwNSwiZm9yZWlnbl9pZCI6IjE1ODgxNDY0ODAxNTg4MTQ2NDgwIiwiY3VycmVuY3kiOiJCVEMiLCJjb252ZXJ0X3RvIjoiRVVSIn0=
You need to:
concatenate JSON with secret key to generate signature
Example:
{"pay_method":"method_x","user":"user1","amount":32.44,"currency":"USD"}ObPvxgtazKCkQ7ifz3qzocbv9TVXeB1LUIbCsYk2WUt5agvyt1n1MhQnnCBlcwhY
The calculated hmac(sha512) hash in lowercase looks like:
Example:
9e4c091dbcc9e2eca21e2e3bd6300ebec225dd0d80f4c309da9ace88000bf6da804262c1415a0b956d1d9411e05f55a547b234ce86338bc55ba58c9962ca0dad
As a result, the request will have the following look:
GET https://terminal.coinspaid.com/?data=eyJjbGllbnRfaWQiOjEsImN1cnJlbmN5IjoiQlRDIiwiZm9yZWlnbl9pZCI6MTU4OTI2ODI1N30=&signature=9e4c091dbcc9e2eca21e2e3bd6300ebec225dd0d80f4c309da9ace88000bf6da804262c1415a0b956d1d9411e05f55a547b234ce86338bc55ba58c9962ca0dad