node-red-trexmes-service
Version:
service Nodes for trexMes systems
103 lines (91 loc) • 4.43 kB
JavaScript
module.exports = function(RED) {
"use strict";
function MethodInvoker(n) {
RED.nodes.createNode(this,n);
const node = this;
node.name = n.name;
node.props = n.props;
node.service = n.service;
node.method = n.method;
node.on('input', function (msg) {
try
{
let tasks = node.props.map((item) => {
return new Promise((resolve, reject) => {
let computedValue;
switch (item.dt) {
case 'msg':
computedValue = RED.util.getMessageProperty(msg, item.d);
break;
case 'flow':
computedValue = node.context().flow.get(item.d);
break;
case 'global':
computedValue = node.context().global.get(item.d);
break;
case 'num':
computedValue = Number(item.d);
break;
case 'json':
try { computedValue = JSON.parse(item.d); } catch (e) { computedValue = null; }
break;
case 'bool':
computedValue = item.d === 'true';
break;
case 'jsonata':
let expr = RED.util.prepareJSONataExpression(item.d, node);
RED.util.evaluateJSONataExpression(expr, msg, (err, result) => {
if (err) {
reject(err);
} else {
computedValue = result;
resolve({
ParameterName: item.p,
Value: computedValue
});
}
});
return; // Callback async olduğu için fonksiyondan çıkıyoruz
default:
computedValue = item.d;
}
resolve({
ParameterName: item.p,
Value: computedValue
});
});
});
Promise.all(tasks)
.then((bindcontrols) => {
let payload = msg.payload;
let receiveddata = null;
if (Array.isArray(payload)) {
if(payload.length>0 && payload[0].receiveddata !== undefined && payload[0].receiveddata !== null){
receiveddata = msg.payload[0].receiveddata;
}
}
else {
receiveddata = msg.payload;
msg.payload = [];
}
const newmsg =
{
"receiveddata" : receiveddata,
"name": node.name,
"operationtype": "MethodInvokerProcess",
"message": node.service +"."+ node.method,
"value": bindcontrols
};
msg.payload.push(newmsg);
node.send(msg);
})
.catch((err) => {
console.error("Error:", err);
});
} catch (err) {
node.error("error: " + err.message, msg);
}
});
}
RED.nodes.registerType("Method Invoker",MethodInvoker);
}