@sphereon/pe-models

Decentralized Identity Foundation
Presentation Exchange
OpenAPI

Table of Contents

• Security
• Background
• Usage

Security

As with most security- and cryptography-related tools, the overall security of your system will largely depend on your design decisions (which key types you will use, where you'll store the private keys, what you put into your credentials, and so on.)

Background

This is an interpretation of the Presentation Exchange v1.0.0 specification as models.

It allows you to generate objects consistently while remaining compliant and consistent with the DIF specification.

Usage

Step 1 : Create Project

The models generated can be used in your project. This is an example where you create a new NPM project to use typescript language, import and use JwtObject. Similarly, you can import and use other objects.

cd '<workspace>'
mkdir my-pe-models-consumer-prj
cd my-pe-models-consumer-prj
npm init

npm init asks few questions. The default answer to those questions can be selected.

Step 2 : Add script & Import models

To use the models generated as a result of above in step 1

npm install
npm install --save @sphereon/pe-models
npm install --save ts-node

Create a folder named scripts

mkdir scripts

Create a file in 'scripts' named consumer-script.ts with following contents

import {JwtObject} from '@sphereon/pe-models'

var jwtObject : JwtObject = {
    alg : ['someAlgorithm']
};

console.log(jwtObject);

In package.json add a script "my-pe-models-consumer-script": "ts-node scripts/consumer-script.ts" in scripts section. Resulting Package.json may look like following.

{
  "name": "my-pe-models-consumer-prj",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
	"my-pe-models-consumer-script": "ts-node scripts/consumer-script.ts"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@sphereon/pe-models": "0.0.5",
    "ts-node": "^9.1.1"
  }
}

Step 3 : Check how it went

In terminal run following command from the <workspace>/my-pe-models-consumer-prj

cd '<workspace>/my-pe-models-consumer-prj'
npm run my-pe-models-consumer-script

You should expect this to be printed on console.

{ alg: [ 'someAlgorithm' ] }