ReferenceError: FormData is not defined at SerializerNativeImpl.serialize

[individual8]

Using the example of uploading media to Mastodon, I get the error ReferenceError: FormData is not defined at SerializerNativeImpl.serialize upon execution.

try {
    // upload media
    const remoteFile = await fetch(mediaUrl);
    const attachment = await masto.v2.media.create({
      file: remoteFile.blob()
    });
    try {
      // post status
      const status = await masto.v1.statuses.create({
        status: caption,
        visibility: "public",
        mediaIds: [attachment.id],
      });
      // save posted photo to database
      await updatePhotosPosted(service, photosPosted, photoToBePosted);
    } catch (e) {
      functions.logger.log(`Error publishing photo on Mastodon.`, e);
    }
  } catch (e) {
    functions.logger.log(`Error uploading photo to Mastodon.`, e);
  }

How can I resolve this issue? I'm using "masto": "^6.2.0", as listed inpackage.json.

[neet]

Hi @individual8, thank you for posting a question. I suppose that you're using an unsupported JavaScript environment. Can you verify that you're using Node.js >= 18.0.0?

In principle, we're not supporting Node.js older than 18.x.x because it doesn't offer FormData, fetch and other APIs, making it difficult to be compatible with browser environments.