# `CCXT.Signing.HmacSha512Gate`
[🔗](https://github.com/ZenHive/ccxt_client/blob/main/lib/ccxt/signing/hmac_sha512_gate.ex#L1)

HMAC-SHA512 Gate.io-style signing pattern.

Used by: Gate.io

## How it works

1. Hash the body with SHA512 (empty string if no body)
2. Generate timestamp (seconds)
3. Build newline-separated payload: `METHOD\npath\nquery\nbody_hash\ntimestamp`
4. Sign with HMAC-SHA512, encode as hex
5. Secret used raw (NOT base64 decoded)

## Configuration

    signing: %{
      pattern: :hmac_sha512_gate,
      api_key_header: "KEY",
      signature_header: "SIGN",
      timestamp_header: "Timestamp",
      signing_path_prefix: "/api/v4"
    }

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*Consult [api-reference.md](api-reference.md) for complete listing*