soyjeansoy

soyjeansoy

Hi, how can i upload large file? it throws Plug.Parsers.RequestTooLargeError even though i added length in Plug.Parsers.

# endpoint.ex
  plug Plug.Parsers,
    parsers: [
      :urlencoded,
      {:multipart, length: 100_000_000},
      :json
    ],
    length: 100_000_000,
    pass: ["*/*"],
    json_decoder: Phoenix.json_library()

My heex template form has multipart and file_input/3 has multiple attribute. I’m uploading 3 files, no larger than 5mb each and it throws this:

Plug.Parsers.RequestTooLargeError at POST /upload
the request is too large. If you are willing to process larger requests, please give a :length to Plug.Parsers
lib/plug/parsers.ex
350
351      {:next, conn} ->
352        reduce(conn, rest, type, subtype, params, pass, query_string_length, validate_utf8)
353
354      {:error, :too_large, _conn} ->
355        raise RequestTooLargeError
356    end
357  end
358
359  defp reduce(conn, [], type, subtype, _params, pass, query_string_length, validate_utf8) do
360    if accepted_mime?(type, subtype, pass) do

Tried also uploading a single file that’s 20mb and still throws the same error. What did i miss?

Showing Posts 1 to 10

karlosmid

karlosmid

Hi! length is in the wrong location. Here is what works for me:

plug Plug.Parsers,
    parsers: [:urlencoded, {:multipart, validate_utf8: false}, :json],
    pass: ["*/*"],
    json_decoder: Poison,
    length: 25_000_000
LostKobrakai

LostKobrakai

For something smallish it does make sense to update the limits, but for larger uploads (imo start at ~30-50 MB) I’d suggest using streamed (e.g. LV uploads) or chunked uploads (e.g. tus protocol).

hauleth

hauleth

Or just upload directly to the storage system.

LostKobrakai

LostKobrakai

Even with a dedicated storage system there’s benefit in chunked uploads though – especially around the ability to reupload on failures.

soyjeansoy

soyjeansoy OP

same thing. still throws error.

also in hexdocs Plug.Parser it says:

However, the above will increase the maximum length of all request types. If you want to increase the limit only for multipart requests (which is typically the ones used for file uploads), you can do:

plug Plug.Parsers,
     parsers: [
       :url_encoded,
       {:multipart, length: 20_000_000} # Increase to 20MB max upload
     ]
soyjeansoy

soyjeansoy OP

What’s tus protocl? can you guide me with that part please?

hauleth

hauleth

kip

kip

ex_cldr Core Team
hauleth

hauleth

It do not seem to be maintained. The GH repo 404 for me.

soyjeansoy

soyjeansoy OP

I guess I’ll try the LV chunked uploads, currently stuck at the part where using external upload (s3) basing on the docs. Right now a simple form action does fine (ex_aws, ex_aws_s3).

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