Pizzly Node.js integration using Axios and environment variables (2 examples: Xero and Trello)

pizzly.js

const Axios = require('axios');

const {
	PIZZLY_URL,
	PIZZLY_SECRET_KEY,
	PIZZLY_TRELLO_ID,
	PIZZLY_XERO_ID,
} = process.env;

const integrations = {
	trello: PIZZLY_TRELLO_ID,
	xero: PIZZLY_XERO_ID,
};

const methods = ['get', 'post', 'put', 'delete'];

const makePizzlyInstance = (integration) => {
	const instance = Axios.create({
		baseURL: `${PIZZLY_URL}/proxy/${integration}`,
		timeout: 0, // no timeouts!
	});

	instance.defaults.auth = {
		username: PIZZLY_SECRET_KEY,
	};

	instance.defaults.headers = {
		...instance.defaults.headers,
		'Pizzly-Auth-Id': integrations[integration],
	};

	return instance;
};

module.exports = async function (
	integration, method, endpoint, body = {}, headers = {},
) {
	if (!integrations[integration]) {
		throw new Error(`You specified an unknown integration (${integration}). Available integrations: ${Object.keys(integrations).join('|')}`);
	}

	if (!methods.includes(method)) {
		throw new Error(`You specified an unknown method (${method}). Available methods: ${methods.join('|')}`);
	}

	const instance = makePizzlyInstance(integration);

	const response = await instance.request({
		method,
		url: endpoint,
		data: body,
		headers,
	});

	return response;
};