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Client

JavaScript client

The hmac-manager npm package signs requests so they verify against an HmacManager-protected API, and verifies incoming ones so a Node service can be such an API itself — no .NET hop and no mesh sidecar required. It builds the same signing content the .NET library does.

Signing runs anywhere with WebCrypto. Verifying is server-side by nature: it needs the private key, and a browser bundle that has one has published it.

npm install hmac-manager

Ships ESM (dist/index.js), CommonJS (dist/index.cjs) and type declarations.

Install Module formats, runtime requirements, and where the private key can safely live. Signing requests What gets signed, how bodies are hashed, and handling the result. Verifying requests Authenticating incoming requests in a Node service with the hmac-manager package. Schemes Folding header values into the signature, on both sides. API The full exported surface of the hmac-manager package.