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To authorise your requests, you need to pass two headers:
  1. X-Processing-Key – the public key that you can find in your account
  2. X-Processing-Signature – the POST body, signed by the secret key HMAC-SHA512. You can find the secret key in your account as well.
For example:
headers: {
  "X-Processing-Key": "text",
  "X-Processing-Signature": "text",
  "Content-Type": "application/json"
}
You also need to include this key in the headers for all requests:
"Content-Type": "application/json"
You can compare the validity of the signature that you generate with our example. Sample request:
Secret key: AbCdEfG123456
Request body in JSON format:
{"currency":"BTC","foreign_id":"123456"}
Sample signature: 03c25fcf7cd35e7d995e402cd5d51edd72d48e1471e865907967809a0c189ba55b90815f20e2bb10f82c7a9e9d865546fda58989c2ae9e8e2ff7bc29195fa1ec