Hi everyone
I'm new to Node-red, but I'm loving it!
In my project I need to send a txt file to a few esp32 clients.
I managed to get the .txt file to 1 esp32 client, but what I'll need is to send to several clients, tahnt can vary.
So what I'm trring to get is have an editable list of esp32 clients ( which will turn into subscribed subscribed topics I'm be updating lets say, e.g.: Client_1, Client_2..etc).
I found thenode-red-node-ui-list weeks days example with radio buttons (here) to be a perfect display for what I need, the thing is, how to produce and editable list that would feed the ui-list demands.
The ui-list needs data in this format: [{"title":"Esp32","isChecked":false}] .
I managed to produce a list of names: ["Client_1","Client_2"], resorting to an input box that but what I'm not getting able to do is turn this list of names into a list or series (not sure what to call it) that I can feed the ui-list.
In ui-list example we can see how multiple elements should be fed to the list widget:
[{"title":"Sunday","isChecked":true},{"title":"Monday"},{"title":"Tuesday"},{"title":"Wednesday"},{"title":"Thursday"},{"title":"Friday"},{"title":"Saturday","isChecked":true}]
This seems like an list of JSON objects where title and isChecked are the keys, am I right?
the question, hot to get from a list of strings ["Client_1","Client_2"] to that list of objects =
Its a lack of javascript skills for sure.
if anyone has any example or answer that might help me I'm very gratefull.
Evenatually a delete option would probably be also usefull.
And still have to figure out hou to have this list permanent (dont loose it in every reset or power-off).
Thank everyone.
Here is my current flow, where i can, measure the length, print and delete a global list:
[
{
"id": "81b5cdfd56ea7bbc",
"type": "tab",
"label": "Flow 4",
"disabled": false,
"info": "",
"env": []
},
{
"id": "9422ceb76fba4d42",
"type": "inject",
"z": "81b5cdfd56ea7bbc",
"name": "Read length",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "Ola",
"payloadType": "str",
"x": 510,
"y": 260,
"wires": [
[
"f9ad60dcd7d9447a"
]
]
},
{
"id": "c4c42d4670044e4f",
"type": "debug",
"z": "81b5cdfd56ea7bbc",
"name": "Read length",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 1110,
"y": 260,
"wires": []
},
{
"id": "f9ad60dcd7d9447a",
"type": "function",
"z": "81b5cdfd56ea7bbc",
"name": "Read length",
"func": "\nvar fs = global.get('deviceList')||0;\n\n//fs[fs.length + 1] = msg.payload;\n\n//msg.payload = fs.length;\n//msg = { payload:fs[33]}\nmsg = { payload:fs.length}\nif (!msg.payload) msg.payload=\"Vazio\";\n//msg.payload=[{ \"title\": msg.payload, \"isChecked\": false }];\n//return msg;\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 810,
"y": 260,
"wires": [
[
"c4c42d4670044e4f"
]
]
},
{
"id": "82a053ecc65e397e",
"type": "inject",
"z": "81b5cdfd56ea7bbc",
"name": "Add element",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "Client_1",
"payloadType": "str",
"x": 510,
"y": 340,
"wires": [
[
"4c0274504c14fe11"
]
]
},
{
"id": "8aa2953926e0644a",
"type": "debug",
"z": "81b5cdfd56ea7bbc",
"name": "Add element",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 1110,
"y": 340,
"wires": []
},
{
"id": "4c0274504c14fe11",
"type": "function",
"z": "81b5cdfd56ea7bbc",
"name": "Add element",
"func": "const fsd = 'deviceList';\n\nlet fs = global.get(fsd) || [];\n\nglobal.set(fsd, fs);\n\nfs[fs.length] = msg.payload;\n\n\n//msg.payload = fs.length;\n//msg = { payload:fs[33]}\n//msg = { payload:fs.length}\n\n//msg.payload=[{ \"title\": msg.payload, \"isChecked\": false }];\n//return msg;\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 810,
"y": 340,
"wires": [
[
"8aa2953926e0644a"
]
]
},
{
"id": "755407d906abd3bc",
"type": "inject",
"z": "81b5cdfd56ea7bbc",
"name": "Read deviceList",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "Ola",
"payloadType": "str",
"x": 520,
"y": 300,
"wires": [
[
"6510945a12641605"
]
]
},
{
"id": "b731204d6fe17dfe",
"type": "debug",
"z": "81b5cdfd56ea7bbc",
"name": "Read deviceList",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 1120,
"y": 300,
"wires": []
},
{
"id": "6510945a12641605",
"type": "function",
"z": "81b5cdfd56ea7bbc",
"name": "Read deviceList",
"func": "\nvar deviceList = global.get('deviceList');\n\n//fs[fs.length + 1] = msg.payload;\n\n//msg.payload = fs.length;\n//msg = { payload:fs[33]}\nmsg = { payload: deviceList}\n\n//msg.payload=[{ \"title\": msg.payload, \"isChecked\": false }];\n//return msg;\nreturn msg;",
"outputs": 1,
"noerr": 0,
"initialize": "",
"finalize": "",
"libs": [],
"x": 820,
"y": 300,
"wires": [
[
"b731204d6fe17dfe"
]
]
},
{
"id": "b6e926ea63f838f3",
"type": "inject",
"z": "81b5cdfd56ea7bbc",
"name": "Delete list",
"props": [
{
"p": "payload"
},
{
"p": "topic",
"vt": "str"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "",
"payloadType": "date",
"x": 500,
"y": 380,
"wires": [
[
"a9b54a8c025573b7"
]
]
},
{
"id": "cf15719dd8237868",
"type": "debug",
"z": "81b5cdfd56ea7bbc",
"name": "Delete deviceList",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "payload",
"targetType": "msg",
"statusVal": "",
"statusType": "auto",
"x": 1130,
"y": 380,
"wires": []
},
{
"id": "a9b54a8c025573b7",
"type": "change",
"z": "81b5cdfd56ea7bbc",
"name": "",
"rules": [
{
"t": "delete",
"p": "deviceList",
"pt": "global"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 850,
"y": 380,
"wires": [
[
"cf15719dd8237868"
]
]
}
]
Cheers, LuĂs Pereira.
