javascript - How can I recieve attachments from discord.js interactions? - Stack Overflow

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I'm trying to get an image attachment through a Discord slash mand interaction, so I can send a manipulated version back to the user, but I just can't seem to be able to do it.

The interaction itself es through alright, but the "image" option's object is just {name: 'image', type: undefined, value: '972518871573602374'}. I think it's strange that the type is undefined despite me clearly using the .addAttachmentOption() method.

Here's my mand builder:

new SlashCommandBuilder()
  .setName("dither")
  .setDescription("Apply a dithering effect to an image")

  .addAttachmentOption((option)=> option
    .setRequired(true)
    .setName("image")
    .setDescription("The image to dither"))

  .addNumberOption((option)=> option
    .setRequired(false)
    .setName("intensity")
    .setDescription(`% of dithering to apply (${intensityDefault}% by default)`))
  .toJSON()

I thought the URL or something might be elsewhere in the interaction object but I couldn't find anything related to attachments. I also couldn't find anything about interaction attachments in the documentation so I thought I'd try here. Is it just an unimplemented feature? But why would there be a method for it then?

I'm also unsure of what the value property represents. I thought it could be the attachment ID, but even if I wanted to recreate the attachment URL myself I'd still need to know the filename.

I'm trying to get an image attachment through a Discord slash mand interaction, so I can send a manipulated version back to the user, but I just can't seem to be able to do it.

The interaction itself es through alright, but the "image" option's object is just {name: 'image', type: undefined, value: '972518871573602374'}. I think it's strange that the type is undefined despite me clearly using the .addAttachmentOption() method.

Here's my mand builder:

new SlashCommandBuilder()
  .setName("dither")
  .setDescription("Apply a dithering effect to an image")

  .addAttachmentOption((option)=> option
    .setRequired(true)
    .setName("image")
    .setDescription("The image to dither"))

  .addNumberOption((option)=> option
    .setRequired(false)
    .setName("intensity")
    .setDescription(`% of dithering to apply (${intensityDefault}% by default)`))
  .toJSON()

I thought the URL or something might be elsewhere in the interaction object but I couldn't find anything related to attachments. I also couldn't find anything about interaction attachments in the documentation so I thought I'd try here. Is it just an unimplemented feature? But why would there be a method for it then?

I'm also unsure of what the value property represents. I thought it could be the attachment ID, but even if I wanted to recreate the attachment URL myself I'd still need to know the filename.

• javascript
• node.js
• discord
• discord.js
• discord-interactions

Share Improve this question Follow edited May 7, 2022 at 16:12 hosma asked May 7, 2022 at 16:03 hosmahosma 2111 gold badge22 silver badges33 bronze badges

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3 Answers 3

Sorted by: Reset to default 3

According to https://discordjs.guide/interactions/slash-mands.html#parsing-options :

const attachment = interaction.options.getAttachment("image")

const name = attachment.name
const url = attachment.url
const proxyURL = attachment.proxyURL

Please note that, in the example above, I have used image because that was the name you attributed to the attachment -- .setName("image").

Above they already explained how to receive images, now if you want to receive texts:

To receive text data you can write this way, the example is a code that I use in my application:

new SlashCommandBuilder()
    .setName('add')
    .setDescription('Add a product to stock!')
    .addAttachmentOption(option =>
        option.setName("accounts")
            .setDescription("Data to be uploaded to database")
            .setRequired(true)
    ),
async execute(interaction) {
    const data = await handleUpload(interaction.options.getAttachment('accounts'))

handleUpload function:

async function handleUpload(attachment){
    const response = await fetch(attachment.attachment)
    const data = await response.text()

    return data
        .trim()
        .split("\n")
};

This is my code and it works

new SlashCommandBuilder()
        .setName('test')
        .setDescription('Test Command!')
        .addAttachmentOption(option => option
            .setName('attach')
            .setDescription('Attachment File')
            .setRequired(true)),
    async execute(interaction, client) {
        const message = await interaction.deferReply({
            fetchReply: true
        });
        const user = message.author
        const file = interaction.options.getAttachment('attach')
        const emb = new MessageEmbed()
            .setAuthor(user.username, user.displayAvatarURL(true))
            .setTitle('Embed Message /w attachment')
            .setDescription('Uploading attachment...')
            .setThumbnail(message.guild.iconURL(true))
            .setTimestamp()
            .setImage(file.url)
            .setFooter('Successfully', user.displayAvatarURL(true))
        console.log(emb)
        await interaction.editReply({ embeds: [emb] });```

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