Authentication

{
  "X-Api-Key": `{YOUR_API_KEY}`,
  "X-Request-time": `{timestamp}`,
  "X-Signature": `{YOUR_API_SIGNATURE}.hex()`,
}

• X-Api-Key: The key you generate in Generate an API key
• X-Request-time: the current time in Unix timestamp format, measured in milliseconds.
• X-Signature: The API signature. To learn how to calculate an API signature, see Calculate API Signature.

Calculate API Signature

1. First, concatenate a string based on your request as follows:

str_to_sign = {BODY}{URI}{TIMESTAMP}

{
  "name":"Default",
  "type":"custodial"
}

2. Perform SHA-256 hashing on the string as follows:

import (
	"crypto/sha256"
)
contentHash := sha256.Sum256(data)

3. Use the private key of your API key to sign the string as follows:

sk := ed25519.PrivateKey(privateKeyBytes)
signature := ed25519.Sign(sk, contentHash[:])

Now you’ve calculated an API signature.