While trying to upload files and the file is a little big (>700KB) from kotlin-react with ktor-client I still hit a buffer limit:

"IllegalArgumentException: should should be greater than write space + end gap (size = 9, writeRemaining = 0, endGap = 8, rem+gap = 8
    at IllegalArgumentException_init_0 (<http://localhost:9000/bundle.js:162304:32>)
    at require$ObjectLiteral_1.doFail (<http://localhost:9000/bundle.js:34344:9>)
    at IoBuffer.writeBufferAppend_ehtrw3$ (<http://localhost:9000/bundle.js:35661:7>)
    at ByteReadPacket_0.ByteReadPacketBase.prepareRead_87ik6q$ (<http://localhost:9000/bundle.js:31628:10>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31444:15>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31455:19>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31455:19>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31455:19>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31455:19>)
    at ByteReadPacket_0.ByteReadPacketBase.readAsMuchAsPossible_v6e8td$_0 (<http://localhost:9000/bundle.js:31455:19>)"

I post via

client.submitForm {}

and I’ve tried

submitFormWithBinaryData {}

as well, no differences 😞

Hi @galex, could you file a github issue with reproducer?

Yup will do

Github. Ktor. I’ll investigate and route.

I just tried with that class and still get the same issue https://github.com/ktorio/ktor-samples/blob/master/other/client-multipart/src/MultipartApp.kt