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facebook-settings.js
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facebook-settings.js
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const rp = require('request-promise');
// --------------------------------------------------------------------------
// NODE-RED
// --------------------------------------------------------------------------
module.exports = function(RED) {
const register = function(config) {
RED.nodes.createNode(this, config);
var node = this;
node.status({fill:"red", shape:"ring", text: 'Missing credential'});
node.pageToken = RED.nodes.getCredentials(config.pageToken);
if (node.pageToken && node.pageToken.token) node.status({});
start(RED, node, config);
this.on('input', (data) => { input(node, data, config) });
}
RED.nodes.registerType("facebook-settings", register, {});
}
const input = (node, data, config) => {
let getstarted = config.getstarted || "getstarted";
let pageToken = node.pageToken.token;
let locales = config.menus;
let sendData = {
"get_started": {
"payload": getstarted
},
"greeting" : [],
"persistent_menu": []
}
for (let locale of locales) {
sendData.greeting.push({
"locale": locale.language || "default",
"text": locale.greetings || ""
})
if (!locale.menu || locale.menu.length === 0 || (locale.menu.length === 1 && !locale.menu[0].label)) continue;
sendData.persistent_menu.push({
"locale": locale.language || "default",
"composer_input_disabled": false,
"call_to_actions": buildObject(locale.menu)
})
}
node.warn(sendData)
facebookAPI(pageToken, sendData)
.then(function (res) { node.warn(res) })
.catch(function (err) { node.error(err); });
}
const start = (RED, node, config) => {
RED.httpAdmin.post("/facebook-settings/:id", function(req,res) {
var node = RED.nodes.getNode(req.params.id);
if (node == null) { return res.sendStatus(404); }
try {
node.receive();
res.sendStatus(200);
} catch(err) { res.sendStatus(500); }
});
}
// --------------------------------------------------------------------------
// FACEBOOK API
// --------------------------------------------------------------------------
const facebookAPI = (token, json) => {
var req = {
uri: 'https://graph.facebook.com/v6.0/me/messenger_profile?access_token='+token,
method: 'POST',
body: json,
json: true
}
return rp(req);
}
const buildObject = (buttons) => {
if (buttons.length < 1) return [];
var array = [];
var tmp = [];
var cache = {0:[]}
for (let i=0; i<buttons.length; i++) {
let btn = {
"type" : buttons[i].action,
"title" : buttons[i].label,
"payload" : buttons[i].value
}
buttons[i].level = Number(buttons[i].level)
switch(buttons[i].action) {
case "nested":
delete btn.payload;
btn.call_to_actions = [];
break;
case "web_url":
delete btn.payload;
btn.url = btn.payload
break;
case "web_url_compact":
btn.type = 'web_url';
btn.webview_height_ratio = "full";
btn.messenger_extensions = true;
break;
}
if (buttons[i].level === 0) {
array.push(btn);
cache[0] = btn;
continue;
}
if (!cache[buttons[i].level-1] || !cache[buttons[i].level-1].call_to_actions) continue;
cache[buttons[i].level-1].call_to_actions.push(btn);
cache[buttons[i].level] = btn;
}
return array;
}