[FAB-12877] Add fabcar app using new prog model (JS)

Add a new version of the FabCar applications using the new
programming model (fabric-network), written in JavaScript.

Change-Id: I0fcc2e8a10291805d5389c7fc8d1e529debd600a
Signed-off-by: Simon Stone <sstone1@uk.ibm.com>

Author: Simon Stone

fabcar/javascript/.editorconfig

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+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

fabcar/javascript/.eslintignore

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+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+coverage

fabcar/javascript/.eslintrc.js

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+/*
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+module.exports = {
+    env: {
+        node: true,
+        mocha: true
+    },
+    parserOptions: {
+        ecmaVersion: 8,
+        sourceType: 'script'
+    },
+    extends: "eslint:recommended",
+    rules: {
+        indent: ['error', 4],
+        'linebreak-style': ['error', 'unix'],
+        quotes: ['error', 'single'],
+        semi: ['error', 'always'],
+        'no-unused-vars': ['error', { args: 'none' }],
+        'no-console': 'off',
+        curly: 'error',
+        eqeqeq: 'error',
+        'no-throw-literal': 'error',
+        strict: 'error',
+        'no-var': 'error',
+        'dot-notation': 'error',
+        'no-tabs': 'error',
+        'no-trailing-spaces': 'error',
+        'no-use-before-define': 'error',
+        'no-useless-call': 'error',
+        'no-with': 'error',
+        'operator-linebreak': 'error',
+        yoda: 'error',
+        'quote-props': ['error', 'as-needed']
+    }
+};

fabcar/javascript/.gitignore

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+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless
+
+wallet
+!wallet/.gitkeep

fabcar/javascript/enrollAdmin.js

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+/*
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+'use strict';
+
+const FabricCAServices = require('fabric-ca-client');
+const { FileSystemWallet, X509WalletMixin } = require('fabric-network');
+const fs = require('fs');
+const path = require('path');
+
+const ccpPath = path.resolve(__dirname, '..', '..', 'basic-network', 'connection.json');
+const ccpJSON = fs.readFileSync(ccpPath, 'utf8');
+const ccp = JSON.parse(ccpJSON);
+
+async function main() {
+    try {
+
+        // Create a new CA client for interacting with the CA.
+        const caURL = ccp.certificateAuthorities['ca.example.com'].url;
+        const ca = new FabricCAServices(caURL);
+
+        // Create a new file system based wallet for managing identities.
+        const walletPath = path.join(process.cwd(), 'wallet');
+        const wallet = new FileSystemWallet(walletPath);
+        console.log(`Wallet path: ${walletPath}`);
+
+        // Check to see if we've already enrolled the admin user.
+        const adminExists = await wallet.exists('admin');
+        if (adminExists) {
+            console.log('An identity for the admin user "admin" already exists in the wallet');
+            return;
+        }
+
+        // Enroll the admin user, and import the new identity into the wallet.
+        const enrollment = await ca.enroll({ enrollmentID: 'admin', enrollmentSecret: 'adminpw' });
+        const identity = X509WalletMixin.createIdentity('Org1MSP', enrollment.certificate, enrollment.key.toBytes());
+        wallet.import('admin', identity);
+        console.log('Successfully enrolled admin user "admin" and imported it into the wallet');
+
+    } catch (error) {
+        console.error(`Failed to enroll admin user "admin": ${error}`);
+        process.exit(1);
+    }
+}
+
+main();

fabcar/javascript/invoke.js

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+/*
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+'use strict';
+
+const { FileSystemWallet, Gateway } = require('fabric-network');
+const fs = require('fs');
+const path = require('path');
+
+const ccpPath = path.resolve(__dirname, '..', '..', 'basic-network', 'connection.json');
+const ccpJSON = fs.readFileSync(ccpPath, 'utf8');
+const ccp = JSON.parse(ccpJSON);
+
+async function main() {
+    try {
+
+        // Create a new file system based wallet for managing identities.
+        const walletPath = path.join(process.cwd(), 'wallet');
+        const wallet = new FileSystemWallet(walletPath);
+        console.log(`Wallet path: ${walletPath}`);
+
+        // Check to see if we've already enrolled the user.
+        const userExists = await wallet.exists('user1');
+        if (!userExists) {
+            console.log('An identity for the user "user1" does not exist in the wallet');
+            console.log('Run the registerUser.js application before retrying');
+            return;
+        }
+
+        // Create a new gateway for connecting to our peer node.
+        const gateway = new Gateway();
+        await gateway.connect(ccp, { wallet, identity: 'user1', discovery: { useLocalhost: true } });
+
+        // Get the network (channel) our contract is deployed to.
+        const network = await gateway.getNetwork('mychannel');
+
+        // Get the contract from the network.
+        const contract = network.getContract('fabcar');
+
+        // Submit the specified transaction.
+        // createCar transaction - requires 5 argument, ex: ('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom')
+        // changeCarOwner transaction - requires 2 args , ex: ('changeCarOwner', 'CAR10', 'Dave')
+        await contract.submitTransaction('createCar', 'CAR12', 'Honda', 'Accord', 'Black', 'Tom');
+        console.log('Transaction has been submitted');
+
+        // Disconnect from the gateway.
+        await gateway.disconnect();
+
+    } catch (error) {
+        console.error(`Failed to submit transaction: ${error}`);
+        process.exit(1);
+    }
+}
+
+main();

fabcar/javascript/package.json

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+{
+    "name": "fabcar",
+    "version": "1.0.0",
+    "description": "FabCar application implemented in JavaScript",
+    "engines": {
+        "node": ">=8",
+        "npm": ">=5"
+    },
+    "scripts": {
+        "lint": "eslint .",
+        "pretest": "npm run lint",
+        "test": "nyc mocha --recursive"
+    },
+    "engineStrict": true,
+    "author": "Hyperledger",
+    "license": "Apache-2.0",
+    "dependencies": {
+        "fabric-ca-client": "unstable",
+        "fabric-client": "unstable",
+        "fabric-network": "unstable"
+    },
+    "devDependencies": {
+        "chai": "^4.2.0",
+        "eslint": "^5.9.0",
+        "mocha": "^5.2.0",
+        "nyc": "^13.1.0",
+        "sinon": "^7.1.1",
+        "sinon-chai": "^3.3.0"
+    },
+    "nyc": {
+        "exclude": [
+            "coverage/**",
+            "test/**"
+        ],
+        "reporter": [
+            "text-summary",
+            "html"
+        ],
+        "all": true,
+        "check-coverage": true,
+        "statements": 100,
+        "branches": 100,
+        "functions": 100,
+        "lines": 100
+    }
+}

fabcar/javascript/query.js

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+/*
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+'use strict';
+
+const { FileSystemWallet, Gateway } = require('fabric-network');
+const fs = require('fs');
+const path = require('path');
+
+const ccpPath = path.resolve(__dirname, '..', '..', 'basic-network', 'connection.json');
+const ccpJSON = fs.readFileSync(ccpPath, 'utf8');
+const ccp = JSON.parse(ccpJSON);
+
+async function main() {
+    try {
+
+        // Create a new file system based wallet for managing identities.
+        const walletPath = path.join(process.cwd(), 'wallet');
+        const wallet = new FileSystemWallet(walletPath);
+        console.log(`Wallet path: ${walletPath}`);
+
+        // Check to see if we've already enrolled the user.
+        const userExists = await wallet.exists('user1');
+        if (!userExists) {
+            console.log('An identity for the user "user1" does not exist in the wallet');
+            console.log('Run the registerUser.js application before retrying');
+            return;
+        }
+
+        // Create a new gateway for connecting to our peer node.
+        const gateway = new Gateway();
+        await gateway.connect(ccp, { wallet, identity: 'user1' });
+
+        // Get the network (channel) our contract is deployed to.
+        const network = await gateway.getNetwork('mychannel');
+
+        // Get the contract from the network.
+        const contract = network.getContract('fabcar');
+
+        // Evaluate the specified transaction.
+        // queryCar transaction - requires 1 argument, ex: ('queryCar', 'CAR4')
+        // queryAllCars transaction - requires no arguments, ex: ('queryAllCars')
+        const result = await contract.evaluateTransaction('queryAllCars');
+        console.log(`Transaction has been evaluated, result is: ${result.toString()}`);
+
+    } catch (error) {
+        console.error(`Failed to evaluate transaction: ${error}`);
+        process.exit(1);
+    }
+}
+
+main();