Overview
This tutorial guides you through building a working environment that issues and verifies Verifiable Credentials within the Empeiria ecosystem. You'll stand up a small backend that talks to the Issuer and Verifier APIs, create a credential schema, issue a credential to a wallet, and gate access to a protected page behind a successful verification.
The credential flows you'll implement are built on open standards: OpenID4VCI for issuance and OpenID4VP for verification, with credentials issued in SD-JWT VC format so the holder can selectively disclose individual claims.
What You Will Learn:
How to stand up a hosted deployment with the One-Click Deployment platform, then create and configure an Issuer and Verifier against that deployment through its API and operator console.
How to authenticate to the Issuer and Verifier APIs using an OIDC access token — an
Authorization: Bearer <JWT>header (with the local-development shortcut of running the API withAUTH_DISABLED=true).How to run a simple Express-based backend that integrates with the Issuer and Verifier APIs.
How to create a credential schema and issue credentials against it.
How to implement verification logic so that only holders of a valid credential can access a protected resource.
How to set up a simple frontend that displays QR codes for the issuance and verification flows.
How to test the full flow using a reference mobile wallet application (iOS/Android).
Prerequisites:
Access to the One-Click Deployment platform.
Node.js and npm installed.
Basic knowledge of JavaScript/TypeScript and Node.js.
A reference Empe DID Wallet:
Android: https://play.google.com/store/apps/details?id=io.empe.wallet
iOS: https://apps.apple.com/us/app/empe-wallet/id6468363115
By the end of this tutorial, you'll have a demo that issues a "KYC Verifiable Credential" and verifies it to grant access to a protected dashboard.
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