Code Cleanup

import * as dotenv from 'dotenv';

dotenv.config({ path: path.resolve(__dirname, '..', '.env') });

const channelName = envOrDefault('CHANNEL_NAME', 'channel1');

const chaincodeName = envOrDefault('CHAINCODE_NAME', 'adrenalineDLT');

const mspId = envOrDefault('MSP_ID', 'Org1MSP');

const channelName = getEnvVar('CHANNEL_NAME');

const chaincodeName = getEnvVar('CHAINCODE_NAME');

const mspId = getEnvVar('MSP_ID');

// Path to crypto materials.

const cryptoPath = envOrDefault('CRYPTO_PATH', path.resolve(__dirname, '..', '..', '..', 'test-network', 'organizations', 'peerOrganizations', 'org1.adrenaline.com'));

const cryptoPath = getEnvVar('CRYPTO_PATH');

// Path to user private key directory.

const keyDirectoryPath = envOrDefault('KEY_DIRECTORY_PATH', path.resolve(cryptoPath, 'users', 'User1@org1.adrenaline.com', 'msp', 'keystore'));

const keyDirectoryPath = getEnvVar('KEY_DIRECTORY_PATH');

// Path to user certificate directory.

const certDirectoryPath = envOrDefault('CERT_DIRECTORY_PATH', path.resolve(cryptoPath, 'users', 'User1@org1.adrenaline.com', 'msp', 'signcerts'));

const certDirectoryPath = getEnvVar('CERT_DIRECTORY_PATH');

// Path to peer tls certificate.

const tlsCertPath = envOrDefault('TLS_CERT_PATH', path.resolve(cryptoPath, 'peers', 'peer1.org1.adrenaline.com', 'tls', 'ca.crt'));

const tlsCertPath = getEnvVar('TLS_CERT_PATH');

// Gateway peer endpoint.

const peerEndpoint = envOrDefault('PEER_ENDPOINT', 'localhost:7051');

const peerEndpoint = getEnvVar('PEER_ENDPOINT');

// Gateway peer SSL host name override.

const peerHostAlias = envOrDefault('PEER_HOST_ALIAS', 'peer1.org1.adrenaline.com');

const peerHostAlias = getEnvVar('PEER_HOST_ALIAS');

const utf8Decoder = new TextDecoder();

const assetId = `asset${Date.now()}`;

/**

 * envOrDefault() will return the value of an environment variable, or a default value if the variable is undefined.

 * getEnvVar() will return the value of an environment variable.

 */

function envOrDefault(key: string, defaultValue: string): string {

    return process.env[key] || defaultValue;

function getEnvVar(varName: string): string {

    const value = process.env[varName];

    if (!value) {

        throw new Error(`Environment variable ${varName} is not set`);

    }

    return value;

}

/**