This demostrates the flow of issuing a direct verifibale credential via QR Code, DeepLink, or Async Messaging.

• You need to create your issuer DID in MATTR Platform. See our Learn site for details.

Cloning the samples-apps repo

git clone https://github.com/mattrglobal/sample-apps

Change to the directory and install dependencies

cd issue-direct-credential-express
yarn install

Update the .env file

Environment variables are used from a .env file. Rename the .env-template to .env and provide the details from your tenant.

TENANT=<your-tenant>.vii.dev.mattrlabs.io
ISSUER_DID=<issuer-did>

Append your valid Platform access token to the end of the start command to start the Express server

yarn start <access_token>

The access token is stored in memory and used to make API calls to your tenant over HTTPS

You can obtain the Subject DID via DIDAuth flow by clicking the DIDAuth button, and scan the generated QR Code with MATTR Mobile Wallet.

The App will call out to your tenant to:

1. Create a DIDAuth Presentation Template if not already exists.
2. Create a Presentation Request.
3. Look-up the DIDUrl of the Messaging DID
4. Sign the Presentation Request with the Messaging DIDUrl

Then you can issue a verifibale credential by clicking the Issue Credential button.

The App will call out to your tenant to:

1. Issue a Veriable Credential with the specified issuer DID and credential claims
2. Create an encrypted Direct Credential Offer with the messaging endpoint

To obtain the credential, you can either:

• Scan the generated QR Code with MATTR Mobile Wallet that contains the credential offer
• Navigate to the DeepLink by clicking on the QR Code
• Send the credential offer via Async Messaging

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