HTTPoison fails to send any request

[r-coh]

When using HTTPoison request, can't figure out why, since the same works in another machine with similar specifications and settings..

iex(33)> HTTPoison.get!("https://httpbin.org/anything")
** (HTTPoison.Error) {:options, {:sslv3, {:versions, [:"tlsv1.2", :"tlsv1.1", :tlsv1, :sslv3]}}}
    (httpoison) lib/httpoison.ex:128: HTTPoison.request!/5

tested this with elixir 1.9.4, OTP 23 on a centos7 machine

[r-coh]

Downgraded to otp 22 fixed it.

[inhji]

Using the following options fixed it for me:

[ssl: [{:versions, [:"tlsv1.2", :"tlsv1.1", :tlsv1]}]]

I'm on Ubuntu 18.04, OTP/23, Elixir 1.10.3 (compiled with Erlang/OTP 21)

[conradfr]

OTP23 has removed support for SSLv3 so I guess that's why we get these errors.

[inhji]

There is already a fix in hackney: benoitc/hackney#619
It's not released yet, though.

[camstuart]

This is tricky, I'm using a dependency that in turn uses HTTPoison how can I specify:

[ssl: [{:versions, [:"tlsv1.2", :"tlsv1.1", :tlsv1]}]] @inhji any ideas?

[inhji]

@camstuart As far as I know, there are two ways you can get around this:

• Downgrade to OTP22. I've done this using https://github.com/asdf-vm
• Patch the library you're using to include the options for HTTPoison

Downgrading OTP seems more sensible to me, given that OTP23 is only out for less than a week at this point.

[camstuart]

I downgraded to 22, but still seem to have a problem. But asdf is a great tool, thanks for letting me in that secret!

[r-coh]

@camstuart you also have to rebuild your app with OTP 22

[r-coh]

asdf is dope; had installed, erlang using official yum repo, turns our centos7 has yum-cron which kept updating it to OTP23, wouldn't have encountered this if using asdf.