Yui
Yui3y ago

upload files formdata

How can I upload files with multipart/form-data using fetch?
17 Replies
javi
javi3y ago
This is what you’re looking for: https://muffinman.io/blog/uploading-files-using-fetch-multipart-form-data/ You can always type the same in google, you’ll get an answer 100%
Yui
YuiOP3y ago
I tried some stuff and did not get it to work so I asked. Might come back.
javi
javi3y ago
Alright sure, but with such easy queries at least try lol. Mdn is a great place to start
Yui
YuiOP3y ago
Alright so got it to work.
Yui
YuiOP3y ago
What if I want to send more files at once though. 🤔 should be possible somehow
Andreu Botella (they/them)
more files in the same form field? what does the server expect?
Yui
YuiOP3y ago
apparently I need to make it json somehow or something? I do not really understand this. https://discord.com/developers/docs/reference#uploading-files
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Andreu Botella (they/them)
oh, then I guess
formData.append("files", file1);
formData.append("files", file2);
formData.append("files", file1);
formData.append("files", file2);
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Unknown User3y ago
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Andreu Botella (they/them)
filesystem based blobs are not supported, but you can read the files into memory that's only an issue if the files are huge
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Unknown User3y ago
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Yui
YuiOP3y ago
For my use case it will just be long strings converted to Blobs so I should be fine with that.
Andreu Botella (they/them)
if the server is expecting files, they might need a filename and a mime type but if you're building the blobs yourself, ok
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Unknown User3y ago
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Andreu Botella (they/them)
well, if you don't specify the mime type it gets set to the empty string because multipart/form-data file fields must have a mime type header but anyway
Yui
YuiOP3y ago
got it to work. Thanks for the help 👍
Yui
YuiOP3y ago

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