# `Bourse.Signing.HmacRecipe`
[🔗](https://github.com/ZenHive/bourse/blob/main/lib/bourse/signing/hmac_recipe.ex#L1)

Generic HMAC signer driven by v4 `auth.sign_recipe` data.

The executor reads canonical string components, crypto operation, signature
placement, auth headers, nonce/timestamp formats, and pre-sign transforms
from the complete owned runtime spec. It executes authored data and does not
classify venues or select a long-tail fallback signer.

---

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