Building a REST API for Hyperledger Fabric with Go + Gin — DID Platform From Chaincode to HTTP Endpoint — Wrapping Your Blockchain in a Production-Ready API Introduction In the previous post we …

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A step-by-step guide to wrapping a Hyperledger Fabric chaincode in a REST API using Go and Gin. Covers a clean layered architecture with separate config, models, fabric SDK, services, handlers, routes, and utils packages. Demonstrates how to expose a DID user registration endpoint that accepts HTTP POST requests, validates input, and submits transactions to the blockchain via gRPC. Includes complete code for all files, a Postman testing walkthrough, and the full call flow from HTTP request to CouchDB world state.