Trying to add !info that changes output based on current game

I’ve been trying to create an !info command that changes the output based on whatever game is currently streaming on Twitch. As the command is longer than 400 character, I was suggested to try Lambda. As of now, it outputs Error 502 if I remove ?game=$(twitch TwitchUsernameHere "{{game}}")
Adding it back just outputs the command itself.

Currently, this is what I’m using as the command.
$(urlfetch json myurlgoeshere?game=$(twitch TwitchUsernameHere "{{game}}")

This is the JSON itself in Lamdba.

console.log('Loading function');

const doc = require('dynamodb-doc');

const dynamo = new doc.DynamoDB();

exports.handler = (event, context, callback) => {
    //console.log('Received event:', JSON.stringify(event, null, 2));

    const done = (err, res) => callback(null, {
        statusCode: err ? '400' : '200',
        body: err ? err.message : JSON.stringify(res),
        headers: {
            'Content-Type': 'application/json',
    var game =;
    if (event.httpMethod === "GET") {
        if (game === "The Elder Scrolls V: Skyrim")
            return done(null, { response: "@$(user) > Difficulty: Legendary (1x vs 4.5x) | Race: Bosmer | Class: Thief | Mods, rules, and tweaks: URL here" });
        else if (game === "S.T.A.L.K.E.R.: Call of Pripyat") 
            return done(null, { response: "@$(user) > Mod: Anomaly 1.5.0 [BETA 3.0] | Faction: Loner | Difficulty: Hard/Survivalist | Modifiers: Agony Mode, Campfire Saves, Dynamic Anomalies, Dynamic Faction Relations, Hardcore AI aim" });
        else if (game === "Tom Clancy\'s Splinter Cell: Chaos Theory") 
            return done(null, { response: "@$(user) > Multiple POVs: URL here | Difficulty: Normal Mode, Expert Difficulty | Mods: SCFix, Thirteenag Widescreen Fix" });
        else if (game === "Music & Performing Arts") 
            return done(null, { response: "@$(user) > DAW: Presonus Studio One 4 | Controller: Alesis V61 | Guitar: Squier Stratocaster Affinity (Modded) | Extra: URL HERE" });
        else if (game === "Grand Theft Auto: San Andreas") 
            return done(null, { response: "@$(user) > Platform: PC [US 1.0] | Mods: CLEO, Crashes, EAX, ENB, GInput, Limit.cs, Movement.cs, Strafefix.cs, SALodLights, SilentPatch, SkyGFX, Various modloader fixes" });
		else if (game === "The Legend of Zelda: Breath of the Wild") 
            return done(null, { response: "@$(user) > Platform: CEMU/Wii U [1080p/60fps tweak] | Version 1.5.0, DLC Ver.3.0" });

A 502 error means your Lambda function is returning a Bad Gateway error. Have you tried accessing your Lambda function yourself?

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