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Renderer Plugin

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Please note that this content is under development and is not ready for implementation. This status message will be updated as content development progresses.

The Renderer Plugin is a module that provides rendering capabilities for verifiable credentials. It allows you to render verifiable credentials using different render methods, such as HTML templates.

Implement a Render Provider​

To implement a new render provider, follow these steps:

  1. Implement the IRendererProvider interface, which includes the renderCredential method. This method takes two parameters: template (a string containing the template to be rendered) and document (a JSON object containing the data to be rendered). The method should return a string with the rendered document.

  2. Save the provider file in the packages/renderer/src/providers folder, using a name that corresponds to the render type. For example, if you want to implement a provider for WebRenderingTemplate2022, name the provider file as web-rendering-template-2022.ts.

  3. Add the provider to the agent.yml file, as shown in the following example:

renderer:
  $require: '@vckit/renderer#Renderer'
  $args:
    - defaultProvider: WebRenderingTemplate2022
      providers:
        WebRenderingTemplate2022:
          $require: '@vckit/renderer#WebRenderingTemplate2022'

Usage​

Standalone​

import { WebRenderingTemplate2022 } from '@vckit/renderer';

const params = {
  credential: {
    // Verifiable credential data...
  },
};

const WebRenderingTemplate2022 = new WebRenderingTemplate2022();
const renderer = new Renderer({
  providers: {
    WebRenderingTemplate2022,
  },
  defaultProvider: 'WebRenderingTemplate2022',
});
const context = {};
const result = await renderer.renderCredential(params, context);
// The result will be the encoded base64 of the rendered HTML string.

With VCkit​

Using the VCkit CLI or API

  1. Override the default configuration file to agent.yml.

  2. Using CLI:

pnpm vckit execute -m renderCredential -f test.json
# Provide the input JSON file, test.json, with the credential data.
  1. Using API:
pnpm vckit server
curl -X 'POST' \
  'http://localhost:3332/agent/renderCredential' \
  -H 'accept: application/json; charset=utf-8' \
  -H 'Authorization: Bearer test123' \
  -H 'Content-Type: application/json' \
  -d '{
  "credential": {
    // Verifiable credential data...
  }
}'

With VCkit Library​

You can try VCkit Renderer plugin by follow this get started guide.