Credential Issuance Server Setup

Install Express

This example demonstrates how to use Express to set up the VC issuance service. Follow these instructions to install Express.

Install Credentials Package

You'll also need to install @web5/credentials to create and issue credentials:

npm install @web5/credentials@1.1.1

Create a DID

Additionally, to issue credentials, you need a Decentralized Identifier (DID) which will serve as your Issuer's identity.

If you don't already have one, you'll need to create a DID with an IDV (Identity Verification) service endpoint:

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If you have an existing DID you'll need to update that DID Document with an IDV service endpoint:

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Create API Service

Ensure you have a file, such as main.js, to act as your API's entry point, which was created during the Express setup.
Within the file, import the following:
```
import { api } from "./api.js";
```

To start your Express API service, add the following:

const config = {
  port: 3000, // this can be any port you want to listen on
};

const server = api.listen(config.port, () => {
  console.log(`Server listening on port ${config.port}`);
});

Next, create an api.js file. This file will define the core API routes and logic for issuing credentials:

import express from "express";
import { VerifiableCredential, Jwt } from "@web5/credentials";

const app = express();
app.use(express.json());

app.get("/example-route", async (req, res) => {
  // implement the API route here
});

// Export the app so it can be imported in your main.js file
export { app as api };