Tips for preserving data on a JSON file to prevent it from resetting whenever my Discord Bot disconnects

I am currently working on developing a bot that incorporates a warning system.

The way it works is that depending on the reason for the warning, users are assigned "points". Once a user accumulates 100 points, they are automatically kicked from the server.

For example, if Insults is at 15 points and Spam is at 20 points:

/warn Sappeur Insults: my warnLevel would be at 15 points

/warn Sappeur Spam: my warnLevel would be at 35 points since I already had 15.

However, this data resets whenever the bot goes offline. I am looking for a way to save this data into a JSON file named "warnLevel". As a beginner, I would appreciate any advice on how to achieve this without making it too complicated. Thank you.

javascriptjsonsavediscord.js

Answer №1

One way to save data to a file on the system is by using the following method:

writeFile(Path, Data, Callback)

This method belongs to node.js's fsLibrary, which suggests that you are likely working with node if you are using discord.js (please correct me if I'm mistaken).

Here's an example:

// Require the fs module where the writeFile function is defined.
const fsLibrary = require('fs');
// Data to be added to the file.
let data = "Hello world.";
// Write the data to 'newfile.txt'.
fsLibrary.writeFile('newfile.txt', data, (error) => {
    // Throw an error exception in case of an error.
    if (error) throw err;
})

If you need to read from the file and load the configuration, you can utilize the following method:

readFile(Path, Options, Callback)

Answer №2

Upon implementing the code you suggested, I encountered some difficulties.

` switch (args[2]) {
                case 'Freekill': {
                    let points = "20";
                    fs.writeFile('./warnLevel.json', points, (error) => {
                        if (error) throw err;
                    })
                    break;
                }

                case 'Spam' : {
                    let points = "10";
                    fs.writeFile('./warnLevel.json', points, (error) => {
                        if (error) throw err;
                    })
                    break;

                }
            }
            break;
        } `

I faced two primary issues: 1) The command was overwriting all existing data in the JSON file rather than tracking individual users' points. 2) When I added the second case, I encountered the following error:

internal/modules/cjs/loader.js:1175
throw err;
^

SyntaxError: C:\Users\ACER\Desktop\PobWarn\warnLevel.json: Unexpected end of JSON input  
at parse (<anonymous>)
?[90m    at Object.Module._extensions..json (internal/modules/cjs/loader.js:1172:22)?[39m
?[90m    at Module.load (internal/modules/cjs/loader.js:986:32)?[39m
?[90m    at Function.Module._load (internal/modules/cjs</answer2>
<exanswer2><div class="answer" i="62289185" l="4.0" c="1591715287" a="U2FwcGV1cg==" ai="13713775">
<p>So I experimented with the commands you mentioned.</p>

<pre><code>` switch (args[2]) {
                case 'Freekill': {
                    let data = "20";
                    fs.writeFile('./warnLevel.json', data, (error) => {
                        if (error) throw err;
                    })
                    break;
                }

                case 'Spam' : {
                    let data = "10";
                    fs.writeFile('./warnLevel.json', data, (error) => {
                        if (error) throw err;
                    })
                    break;

                }


            }
            break;
        } `

I encountered two main obstacles: 1) The command kept replacing all contents in the JSON file instead of maintaining different users' points. 2) Adding the second case resulted in this error message:

internal/modules/cjs/loader.js:1175
throw err;
^

SyntaxError: C:\Users\ACER\Desktop\PobWarn\warnLevel.json: Unexpected end of JSON            input  
at parse (<anonymous>)
?[90m    at Object.Module._extensions..json (internal/modules         /cjs/loader.js:1172:22)?[39m
?[90m    at Module.load (internal/modules/cjs/loader.js:986:32)?[39m
?[90m    at Function.Module._load (internal/modules/cjs/loader.js:879:14)?[39m
?[90m    at Module.require (internal/modules/cjs/loader.js:1026:19)?[39m
?[90m    at require (internal/modules/cjs/helpers.js:72:18)?[39m
at Object.<anonymous> (C:\Users\ACER\Desktop\PobWarn\index.js:6:19)
?[90m    at Module._compile (internal/modules/cjs/loader.js:1138:30)?[39m
?[90m    at Object.Module._extensions..js (internal/modules                                        /cjs/loader.js:1158:10)?[39m
?[90m    at Module.load (internal/modules/cjs/loader.js:986:32)?[39m

Additionally, I am uncertain about the purpose and parameters to be used for the `readFile` command, including options and callback functions. Apologies for any inconvenience caused.

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