Flutter post request returns Unhandled Exception: HttpException: Connection closed before full header was received, uri

Question

I'm facing some strange issue when try to make an http post request through HttpClient and through http package and for both I receive:

[ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: HttpException: Connection closed before full header was received, uri = https://dumb.api.url/api/login

The strange thing is it works through postman, curl and if done natively on Android (Kotlin). Also, there is no VPN or whatever turned on.

I know there is a lot of similar questions, but none of them helped me.

I already tried using http package, HttpClient, ioClient, Dio to make a request. I also tried to set timeouts, use delays, using badCertificates callback, cleaning the project (flutter clean), restarting IDE and device and running this both on emulator and device.

Hi, did you try this ? https://stackoverflow.com/a/56942627/9707804 — Ratnadeep, Sep 25 '20 at 13:22
Yes, it didn't work. Plus, the issue from the link is regarding connecting to emulator. In my case I have problems with sending http request — Alex.Marynovskyi, Sep 25 '20 at 13:24
https://github.com/flutter/flutter/issues/41573 ... you can check out this issue mate. — Ratnadeep, Sep 25 '20 at 13:35
I've seen this one too) I've added to the question the things I tried — Alex.Marynovskyi, Sep 25 '20 at 14:00
There is nothing useful in the logs except the line I posted, and app's just showing an empty screen with 1 button to make a request — Alex.Marynovskyi, Sep 25 '20 at 16:18
Hey buddy. Did you resolve your issue?? This same has occurred to me also. — Zain SMJ, Jan 06 '22 at 12:26
have had this occur with flutter app in real device as well, have you got this problem resolved somehow? — ahaaman, May 20 '22 at 06:23

score 0 · Answer 1 · answered Jan 25 '22 at 02:00

0

From the logs provided, it looks like the request has timed out. Try creating a new Android virtual device with a different Android version or try wiping the data of the Android virtual device. This should help reset the network config of the device.

answered Jan 25 '22 at 02:00

Omatt

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Flutter post request returns Unhandled Exception: HttpException: Connection closed before full header was received, uri

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