Postman HMAC-SHA1 HTTP Pre-request Script

Description

Postman Pre-Request Script that Generate HMAC-SHA1 valid 'Authorization' header following HTTP signature scheme. Useful for Node.js / Express.js app authentication combined with this package: api-key-auth

HTTP scheme signatures

HTTP scheme signatures

Exemple Authorization output

Signature keyid="123456789",algorithm="hmac-sha1",headers="date",signature="X+DG+jRFd/4C+81XmUXQoimry7c="