node-red-contrib-motechat/payload/payload.js

ultranet topic and payload communication

const debug = require('../lib/mcClient.js').debug

module.exports = (RED) => {

    function payload(config) {
        RED.nodes.createNode(this, config)
        const node = this
        this.payload = config.payload
        this.payloadType = config.payloadType

        node.on('input', (msg, send, done) => {
            send = send || function() { node.send.apply(node, arguments) }
            let value = RED.util.evaluateNodeProperty(this.payload, this.payloadType, this)
            if (!msg.payload) msg.payload = {}

            if (this.payloadType == 'json' && typeof msg.payload == 'object') {
                Object.assign(msg.payload, value)
            } else {
                msg.payload = value
            }

            send(msg)
            if (done) done()
        })
    }
    RED.nodes.registerType("payload", payload)
}