The mechanism of authorization of queries in Coin Accepted system is exactly the same like in
EXCHANGE_NAME.
To perform a valid authentication you need to use API public and secret keys to generate a
sign. You can generate keys by going to the Pages tab under the Management section, and
then click Add Store.
The generated pair of keys will only support a specific store and for each store, you should
generate them separately.
The parameters must be sent in JSON format which allows you to generate a hash.
In order to correctly execute a query for any method, the following authorization parameters
must be present in the header:
| Header | Description |
|---|---|
| API-Key | Public API key. |
| API-Hash | HMAC("SHA512", public_key + current_timestamp + JSON_body_parameters, private_key) |
| operation-id | One time, randomly generated UUID. |
| Request-Timestamp | Current time in the UNIX Timestamp format. The same value must be used to generate the hash. |
| Content-Type | Two-part identifier of the file format, by default: application/json. |
API-Hash is HMAC based hash generated for body parameters using SHA512 algorithm and
your private key to sign. It contains following data:
- Public key
- Current timestamp of operation
- Body parameters in JSON format
- Private key to sign (in some libraries it is an additional parameter)
Example authorization headers and generation in NodeJS:
API-Key: 12345f6f-1b1d-1234-a973-a10b1bdba1a1
API-Hash:
8892f16e0713c5f3e3d7e9fa26c5a5f2817b09fc48fece72ed5712ae33547c92e91e735b
1818397136beea760efae61d1449a93e48ee2f80789dfa24830ef720
operation-id: 78539fe0-e9b0-4e4e-8c86-70b36aa93d4f
Request-Timestamp: 1529897422
Content-Type: application/json'use strict'
const uuidv4 = require ( 'uuid/v4' );
const crypto = r
equire ( 'crypto' );
const apiKey = '48249e33-fbad-4805-a752-a82fe216e933' ;
const apiSecret = '12cd3901-1d4f-4b24-82ef-fbbc36638b7c' ;
var body = null ;
function getHash (apiKey, timestamp, apiSecret, body) {
const hmac = crypto.createHmac( 'sha512' , apiSecret);
if (body)
hmac.update(apiKey + timestamp + JSON .stringify(body));
else
hmac.update(apiKey + timestamp);
return hmac.digest( 'hex' );
};
let timestamp = Date .now();
var headers = {
'API-Key' : apiKey,
'API-Hash' : getHash(apiKey, timestamp, apiSecret, body),
'operation-id' : uuidv4(),
'Request-Timestamp' : timestamp,
'Content-Type' : 'application/json'
};