Convert to module (ESM).

- **BREAKING**: Convert to module (ESM).
- **BREAKING**: Require Node.js >=14.
- Update dependencies.
- Lint module.

Author: davidlehn

.babelrc

@@ -0,0 +1,17 @@
+/*!
+ * Copyright (c) 2021-2022 Digital Bazaar, Inc. All rights reserved.
+ */
+module.exports = {
+  root: true,
+  env: {
+    node: true
+  },
+  extends: [
+    'digitalbazaar',
+    'digitalbazaar/jsdoc',
+    'digitalbazaar/module'
+  ],
+  rules: {
+    'jsdoc/require-description-complete-sentence': 0
+  }
+};

.eslintrc.cjs

@@ -8,7 +8,7 @@ jobs:
     timeout-minutes: 10
     strategy:
       matrix:
-        node-version: [12.x, 14.x]
+        node-version: [14.x, 16.x, 18.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 10
     strategy:
       matrix:
-        node-version: [14.x]
+        node-version: [16.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
@@ -38,7 +38,7 @@ jobs:
     timeout-minutes: 10
     strategy:
       matrix:
-        node-version: [14.x]
+        node-version: [16.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
@@ -54,7 +54,7 @@ jobs:
     timeout-minutes: 10
     strategy:
       matrix:
-        node-version: [14.x]
+        node-version: [16.x]
     steps:
     - uses: actions/checkout@v2
     - name: Use Node.js ${{ matrix.node-version }}
@@ -65,7 +65,7 @@ jobs:
     - name: Generate coverage report
       run: npm run coverage-ci
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v2
       with:
         file: ./coverage/lcov.info
         fail_ci_if_error: true

.eslintrc.js

@@ -1,5 +1,14 @@
 # @digitalbazaar/vc ChangeLog
 
+## 3.0.0 - 2022-xx-xx
+
+### Changed
+- **BREAKING**: Convert to module (ESM).
+- **BREAKING**: Require Node.js >=14.
+- Update dependencies.
+  - **BREAKING**: `[email protected]` used in tests.
+- Lint module.
+
 ## 2.1.0 - 2021-12-20
 
 ### Changed

.github/workflows/main.yml

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2021-2022 Digital Bazaar, Inc. All rights reserved.
  */
 module.exports = function(config) {
 
@@ -26,16 +26,8 @@ module.exports = function(config) {
     },
 
     webpack: {
-      //mode: 'production',
       mode: 'development',
-      devtool: 'inline-source-map',
-      resolve: {
-        fallback: {
-          crypto: false,
-          url: false,
-          util: false
-        }
-      }
+      devtool: 'inline-source-map'
     },
 
     // test results reporter to use

CHANGELOG.md

@@ -1,16 +1,17 @@
 /*!
- * Copyright (c) 2019-2021 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2019-2022 Digital Bazaar, Inc. All rights reserved.
  */
-'use strict';
-const jsonld = require('jsonld');
-const {AssertionProofPurpose} = require('jsonld-signatures').purposes;
+import jsonld from 'jsonld';
+import jsigs from 'jsonld-signatures';
+
+const {purposes: {AssertionProofPurpose}} = jsigs;
 
 /**
  * Creates a proof purpose that will validate whether or not the verification
  * method in a proof was authorized by its declared controller for the
  * proof's purpose.
  */
-class CredentialIssuancePurpose extends AssertionProofPurpose {
+export class CredentialIssuancePurpose extends AssertionProofPurpose {
   /**
    * @param {object} options - The options to use.
    * @param {object} [options.controller] - The description of the controller,
@@ -77,5 +78,3 @@ class CredentialIssuancePurpose extends AssertionProofPurpose {
     }
   }
 }
-
-module.exports = CredentialIssuancePurpose;

karma.conf.js renamed to karma.conf.cjs

@@ -1,17 +1,23 @@
 /*!
- * Copyright (c) 2019-2021 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2019-2022 Digital Bazaar, Inc. All rights reserved.
  */
-'use strict';
+import {
+  contexts as credentialContexts
+} from 'credentials-context';
+import {
+  CONTEXT as vcExamplesV1Context,
+  CONTEXT_URL as vcExamplesV1ContextUrl
+} from './vc-examples-v1.js';
+import {
+  CONTEXT as odrlContext,
+  CONTEXT_URL as odrlContextUrl
+} from './odrl.js';
 
-const {contexts, constants: contextConstants} = require('credentials-context');
+export const contexts = {};
 
-const exportedContexts = module.exports = {
-  'https://www.w3.org/2018/credentials/examples/v1':
-    require('./vc-examples-v1'),
-  'https://www.w3.org/ns/odrl.jsonld': require('./odrl')
-};
+contexts[vcExamplesV1ContextUrl] = vcExamplesV1Context;
+contexts[odrlContextUrl] = odrlContext;
 
-for(const c in contextConstants) {
-  const contextUrl = contextConstants[c];
-  exportedContexts[contextUrl] = contexts.get(contextUrl);
+for(const [url, context] of credentialContexts.entries()) {
+  contexts[url] = context;
 }

lib/CredentialIssuancePurpose.js

@@ -1,10 +1,10 @@
 /*!
- * Copyright (c) 2019-2021 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2019-2022 Digital Bazaar, Inc. All rights reserved.
  */
-'use strict';
 
+export const CONTEXT_URL = 'https://www.w3.org/ns/odrl.jsonld';
 /* eslint-disable quote-props, key-spacing, max-len */
-module.exports = {
+export const CONTEXT = {
   '@context': {
     'odrl':    'http://www.w3.org/ns/odrl/2/',
     'rdf':     'http://www.w3.org/1999/02/22-rdf-syntax-ns#',

lib/contexts/index.js

@@ -1,9 +1,10 @@
 /*!
- * Copyright (c) 2019-2021 Digital Bazaar, Inc. All rights reserved.
+ * Copyright (c) 2019-2022 Digital Bazaar, Inc. All rights reserved.
  */
 
+export const CONTEXT_URL = 'https://www.w3.org/2018/credentials/examples/v1';
 /* eslint-disable quote-props */
-module.exports = {
+export const CONTEXT = {
   '@context': [
     {
       '@version': 1.1