node-jet/lib/3_jet/messages.js

Jet Realtime Message Bus for the Web. Daemon and Peer implementation.

import { InvalidArgument, invalidRequest } from './errors.js';
export const castMessage = (msg) => {
    if (!('method' in msg))
        throw new invalidRequest('No method');
    const method = msg.method;
    const { params } = msg;
    switch (method) {
        case 'info':
            return msg;
        case 'authenticate':
            if (!params || !('user' in params) || !('password' in params)) {
                throw new InvalidArgument('Only params.user & params.password supported');
            }
            return msg;
        case 'addUser':
            if (!params ||
                !('user' in params) ||
                !('password' in params) ||
                !('groups' in params)) {
                throw new InvalidArgument('params.user, params.password & params.groups required');
            }
            return msg;
        case 'configure':
            if (!params || !('name' in params)) {
                throw new InvalidArgument('Only params.name supported');
            }
            return msg;
        case 'unfetch':
            if (!params || !('id' in params)) {
                throw new InvalidArgument('Fetch id required');
            }
            return msg;
        default:
            if (!params || !('path' in params)) {
                throw new InvalidArgument('Path required');
            }
    }
    switch (method) {
        case 'fetch':
            if (!('id' in params))
                throw new InvalidArgument('Fetch id required');
            return msg;
        case 'change':
        case 'set':
            if (!('value' in params))
                throw new InvalidArgument('Value required');
            return msg;
        default:
            return msg;
    }
};