RegisterNUICallback

Syntax

RegisterNUICallback(string eventName, function callback)

Required arguments

• eventName: The name of the event you want to listen to.
• callback: The function to run when the event is called from NUI.

Examples

LUA

RegisterNUICallback('getItemInfo', function(data, cb)
    -- POST data gets parsed as JSON automatically
    local itemId = data.itemId

    if not itemCache[itemId] then
        cb({ error = 'No such item!' })
        return
    end

    -- and so does callback response data
    cb(itemCache[itemId])
end)

Browser-side JS, this calls into the NUI Callback to and will get the NUI data back as a response

fetch(`https://${GetParentResourceName()}/getItemInfo`, {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json; charset=UTF-8',
    },
    body: JSON.stringify({
        itemId: 'my-item'
    })
}).then(resp => resp.json()).then(resp => console.log(resp));