I’ll be explaining how to get and set data using an express server that uses replit databases.
don’t flame my nodejs code i’m new to js
Why should I do this?
- Perhaps you want to modify and get data using discord bots
- Or you just want more control over your data
In order to do this you need:
- Replit Account
- Basic knowledge of roblox scripting
Note that roblox ONLY allows up to 500 HTTP Requests per minute.
Repl:
First of all start by making a new repl
Then select Node.js
Once you done that simply press on Create Repl
Then a page should open with a file called index.js, simply paste this.
const Database = require("@replit/database")
const db = new Database()
const express = require('express');
const app = express();
const bodyParser = require('body-parser');
app.use(bodyParser.json());
app.get('/', (req, res) => {
res.send('hello')
});
app.post('/getData', (req, res) => {
if (req.headers && req.headers["authorization"] && req.headers["authorization"] === process.env.authorization) {
if (req.body["key"]) {
db.get(req.body["key"]).then(data => {
if (data === null) {
res.send({success: true, data: "{}"})
} else {
res.send({success: true, data: data})
}
})
} else {
res.send({success: false, data: "Body did not contain a key"})
}
} else {
res.send({success: false, data: "Forbidden 403"})
}
})
app.post('/setData', (req, res) => {
if (req.headers && req.headers["authorization"] && req.headers["authorization"] === process.env.authorization) {
if (req.body["key"] && req.body["data"]) {
db.set(req.body["key"], req.body["data"]).then(() => {})
res.send({success: true})
} else {
res.send({success: false, data: "Body did not contain a key or a data value"})
}
} else {
res.send({success: false, data: "Forbidden 403"})
}
})
app.listen(3000, () => {
console.log('server started');
});
After that, go on the right and find the + and click on it.
And now press on Secrets after you find it
Press on Create Secret
After that just press Add Secret after you put a key that you actually remember.
Hopefully you are keeping track, after that just press “Run”
If there is un-installed packages, wait for replit to install them and wait for a “Webview” tab to open up.
And once you do that copy the URL over here.
Roblox Studio:
Start by opening up a published place that has HTTP Requests enabled (you can find this in the game settings)
Make a script in ServerScriptService and call it whatever you want, after doing that paste this into the code and configure it.
-- written by @notaisar on discord
local HttpService = game:GetService("HttpService")
local dataServerURL = "put here the URL that you copied"; -- IF THERE IS A / AT THE END, REMOVE IT.
local dataHeaders = {
["authorization"] = "put the SECRET that you made in replit here"
}
function CheckTableEquality(t1,t2)
for i,v in next, t1 do if t2[i]~=v then return false end end
for i,v in next, t2 do if t1[i]~=v then return false end end
return true
end
local startingData = {}
game:GetService("Players").PlayerAdded:Connect(function(player)
local httpConnection = HttpService:PostAsync(dataServerURL.. "/getData", HttpService:JSONEncode({key = "Player_" .. player.UserId}), Enum.HttpContentType.ApplicationJson, nil, dataHeaders)
local request;
local requestSuccess;
if httpConnection then
requestSuccess, request = pcall(HttpService.JSONDecode, HttpService, httpConnection)
end
if requestSuccess then
local parsed, data = pcall(HttpService.JSONDecode, HttpService, request.data)
if parsed then
if request.success and data then
if CheckTableEquality(data, {}) then
-- DATA IS EMPTY
data = {
Coins = 0;
}
-- RECONCILED DATA
end
startingData[player] = data;
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
leaderstats.Parent = player
for dataName, dataValue in pairs(data) do
local value = "StringValue"
if typeof(dataValue) == "number" then
value = "NumberValue"
elseif typeof(dataValue) == "boolean" then
value = "BoolValue"
end
local dataInstance = Instance.new(value)
dataInstance.Name = dataName
dataInstance.Value = dataValue
dataInstance.Parent = leaderstats
end
else
warn("DataManager: COULD NOT LOAD ".. player.Name .." (" .. player.UserId ..") RETURNING INFO WAS " .. (request.data and request.data or "null") .. ".")
player:Kick("Met with an error while retrieving your data.")
end
else
player:Kick("Could not correctly parse your JSON data.")
end
else
player:Kick("Could not retrieve your data.")
end
end)
game:GetService("Players").PlayerRemoving:Connect(function(player)
local endingData = {}
for _, v in pairs(player:WaitForChild("leaderstats"):GetChildren()) do
endingData[v.Name] = v.Value;
end
if CheckTableEquality(startingData[player], endingData) then
warn("not saving data due to it not changing")
return
end
endingData = HttpService:JSONEncode(endingData)
local httpConnection = HttpService:PostAsync(dataServerURL.. "/setData", HttpService:JSONEncode({key = "Player_" .. player.UserId, data = endingData}), Enum.HttpContentType.ApplicationJson, nil, dataHeaders)
local request;
local requestSuccess;
if httpConnection then
requestSuccess, request = pcall(HttpService.JSONDecode, HttpService, httpConnection)
end
if requestSuccess and not request.success then
warn("DataManager: had an error while saving ".. player.Name .. " (" .. player.UserId ..")'s data message was ".. (request.data and request.data or "null"))
elseif not requestSuccess then
warn("DataManager: had an error while saving ".. player.Name .. " (" .. player.UserId ..")'s data message was " .. (request and request or "null"))
end
end)
And like that, you should have a working replit database system.
If you couldn’t understand or the code errors, reply to this topic with your issue.
Hopefully this helps anyone.
