Taco Comments - Answer Overflow

Taco

•Created by Taco on 2/27/2025 in #djs-questions

Deferring a message saying headers wrong

Error handling leaderboard command: Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client [1] at ServerResponse.setHeader (node:_http_outgoing:699:11) [1] at ServerResponse.header (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:795:10) [1] at ServerResponse.send (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:175:12) [1] at ServerResponse.json (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:279:15) [1] at ServerResponse.send (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:163:21) [1] at handleLeaderboardCommand (file:///C:/Users/Vader/MarvelRivalsBot/marvelcommands/leaderboard.js:38:20) [1] at process.processTicksAndRejections (node:internal/process/task_queues:105:5) { [1] code: 'ERR_HTTP_HEADERS_SENT' [1] } [1] node:_http_outgoing:699 [1] throw new ERR_HTTP_HEADERS_SENT('set'); [1] ^ [1] [1] Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client [1] at ServerResponse.setHeader (node:_http_outgoing:699:11) [1] at ServerResponse.header (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:795:10) [1] at ServerResponse.send (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:175:12) [1] at ServerResponse.json (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:279:15) [1] at ServerResponse.send (C:\Users\Vader\MarvelRivalsBot\node_modules\express\lib\response.js:163:21) [1] at handleLeaderboardCommand (file:///C:/Users/Vader/MarvelRivalsBot/marvelcommands/leaderboard.js:47:20) [1] at process.processTicksAndRejections (node:internal/process/task_queues:105:5) { [1] code: 'ERR_HTTP_HEADERS_SENT' [1] }

5 replies

DIAdiscord.js - Imagine an app

•Created by Taco on 2/27/2025 in #djs-questions

Deferring a message saying headers wrong

export async function handleLeaderboardCommand(data, heroCache, res) {
    try {
        const chosenName = data.options[0].value;
        const platform = data.options.find(opt => opt.name === 'platform')?.value || 'pc';
        const lengthOption = data.options.find(opt => opt.name === "length")?.value || 10;
        const lengthLimit = Math.max(1, Math.min(500, parseInt(lengthOption, 10)));

        const hero = heroCache.find(h => h.name.toLowerCase() === chosenName.toLowerCase());
        res.send({
            type: InteractionResponseType.DEFERRED_CHANNEL_MESSAGE_WITH_SOURCE,
        });
        const leaderboardData = await fetchLeaderboard(hero, platform);
        // const itemData = await fetchItems();

        if (!leaderboardData) {
            return res.send({
                type: InteractionResponseType.DEFERRED_UPDATE_MESSAGE,
                data: { content: "No leaderboard data available.", flags: 64 },
            });
        }

        const limitedPlayers = leaderboardData.players.slice(0, lengthLimit);

        const lbEmbeds = limitedPlayers.map((player, index) => {
            const embed = createLeaderboardEmbed(player, hero, formatPlatforms(platform), index + 1, "itemData");
            embed.setFooter({ text: `UID: ${player.player_uid} | Page ${index + 1} of ${limitedPlayers.length}` });
            return embed;
        });

        const lastPage = lbEmbeds.length - 1;

        return res.send({
            type: InteractionResponseType.DEFERRED_UPDATE_MESSAGE,
            data: {
                embeds: [lbEmbeds[0]],
                components: getPaginationButtons(chosenName, 0, lastPage, "leaderboard", lengthLimit, formatPlatforms(platform)),
            },
        });
    } catch (error) {
        console.error("Error handling leaderboard command:", error);
        return res.send({
            type: InteractionResponseType.CHANNEL_MESSAGE_WITH_SOURCE,
            data: { content: "An error occurred while fetching leaderboard data.", flags: 64 },
        });
    }
}

export async function handleLeaderboardCommand(data, heroCache, res) {
    try {
        const chosenName = data.options[0].value;
        const platform = data.options.find(opt => opt.name === 'platform')?.value || 'pc';
        const lengthOption = data.options.find(opt => opt.name === "length")?.value || 10;
        const lengthLimit = Math.max(1, Math.min(500, parseInt(lengthOption, 10)));

        const hero = heroCache.find(h => h.name.toLowerCase() === chosenName.toLowerCase());
        res.send({
            type: InteractionResponseType.DEFERRED_CHANNEL_MESSAGE_WITH_SOURCE,
        });
        const leaderboardData = await fetchLeaderboard(hero, platform);
        // const itemData = await fetchItems();

        if (!leaderboardData) {
            return res.send({
                type: InteractionResponseType.DEFERRED_UPDATE_MESSAGE,
                data: { content: "No leaderboard data available.", flags: 64 },
            });
        }

        const limitedPlayers = leaderboardData.players.slice(0, lengthLimit);

        const lbEmbeds = limitedPlayers.map((player, index) => {
            const embed = createLeaderboardEmbed(player, hero, formatPlatforms(platform), index + 1, "itemData");
            embed.setFooter({ text: `UID: ${player.player_uid} | Page ${index + 1} of ${limitedPlayers.length}` });
            return embed;
        });

        const lastPage = lbEmbeds.length - 1;

        return res.send({
            type: InteractionResponseType.DEFERRED_UPDATE_MESSAGE,
            data: {
                embeds: [lbEmbeds[0]],
                components: getPaginationButtons(chosenName, 0, lastPage, "leaderboard", lengthLimit, formatPlatforms(platform)),
            },
        });
    } catch (error) {
        console.error("Error handling leaderboard command:", error);
        return res.send({
            type: InteractionResponseType.CHANNEL_MESSAGE_WITH_SOURCE,
            data: { content: "An error occurred while fetching leaderboard data.", flags: 64 },
        });
    }
}

5 replies

Gaming

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