[Help] Passing Javascript data to LUA

gtfoeefan · 2019-07-11T21:34:55.814Z

Hi all,

I know it’s possible to pass LUA data over to javascript using SendNUIMessage but is it possible to do it the other way around? I have a script that essentially grabs some data from an API and i need it to go into LUA

Here is my simple javascript function where i grab values from the html

function boloSubmit() {
    console.log("inside bolosubmit")
    var today = new Date();
    var officer = $('#boloAddOfficer').val();
    var type = $('#boloAddType').val();
    var description = $('#boloAddDesc').val();
  }

i’ve tried using

emit("cad:testevent", officer, type, description);

to call my client.lua event

RegisterNetEvent('cad:testevent')
AddEventHandler('cad:testevent', function(officer, type, description)
    print(officer)
    print(type)
    print(description)
end)

but i’m struggling on if i can even use emit any help is appreciated

gtfoeefan · 2019-07-11T21:54:07.659Z

For anyone with the same problem as me here’s the solution i found

To take data back from javascript you use this line in your js file

$.post("http://resourcename/eventname", JSON.stringify({ pass variables }))

and on your frontend you use

RegisterNUICallback('testevent', function(data)
    print(data)
end)

gonibix23 · 2020-08-28T21:06:34.425Z

What do I need to put in "http://resourcename/eventname" pls

Taso · 2020-08-30T07:05:02.354Z

resourcename = The name of your resource, so if was ‘exampleresource’, the code would be

$.post("http://exampleresource/exampleEvent", JSON.stringify({ example = 'wow' }))

In the lua portion of your resource, using my example above, you would have:

RegisterNUICallback('exampleEvent', function(data, cb)
    --This would print wow
    print(data.example)
    cb()
end)

The cb() is a callback that returns to the NUI, you need this to prevent stalling. Here is more information on the relevant documentation page.