Building Async/Await Plugins

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As Takeoff uses node 8, we can use async/await functions that can make code much clearer.

In the using plugin there is code that creates a new uses. First we hash the password, then we save the users to the database - both asynchronous methods.

const { hashPassword } = require('../utils');

module.exports = server => {
    return async function(req, reply) {
        const { username, password, role, displayName } = req.payload;

        try {
            const hashedPassword = await hashPassword(password);
            const userObject = {
                role,
                username,
                password: hashedPassword,
                displayName: displayName
            };

            const data = await server.app.db.User.create(userObject);
            return reply({ success: true, data });
        } catch (e) {
            reply(e);
        }
    };
};

As you can see, hashPassword is an async function that returns a Promise, as does server.app.db.User.create. In both cases we use the await keyword, inside a async function that we are returning. This makes the code more readable and error tolerent. At the moment there is no robust error handling here, but this can be build in.