Writing an elixir thrift client. How do you choose the protocol?

[fire]

Trying to connect to an existing server in java. How do you select the protocol? The server appears to be using the cp protocol, but in the future the client library can be ssl too.

[fire]

I was able to connect using the Binary Protocol and no framing. However I wish to support ssl.

[scohen]

When you call ClientModule.connect(host, port), that should pass the client_options that you defined into thrift_client_util.new.

from https://github.com/apache/thrift/blob/master/lib/erl/src/thrift_client_util.erl#L46, you should be able to add ssltransport: true to your client_opts, which should enable ssl. You do the same thing (framed: true) to enable framing.

[fire]

Actually, do you know when the compact protocol will be supported? It seems to require a pre-release.

[scohen]

Looks like master has an option for compact, but it's not in 0.9.3. My guess is that it'll be in the next release (I don't know when that will be), which will affect riffed as well, and make it much easier to build clients and servers.

With the exception of compact, did this work for you?

[scohen]

Oh, would you like me to update the docs to show how to choose protocols?

[fire]

I was able to test binary protocol and framing disabled, but not sure about ssl.

Do you know if the server is compatible with letsencrypt? Also, does elixir use the default linux / windows certificate authority list?

[scohen]

We use framed binary, and interoperate with a bunch of other languages, so I'm positive they work. Our configs look like this:

  client_opts: [
    framed: true,
    retries: 3
  ]

That'll give you binary + framed.

We don't use letsencrypt, so I don't know about that. You can add keys to the erlang application, which you might need to do to get it working. Details here: http://erlang.org/doc/man/ssl.html

You can also ask on the elixir-lang IRC channel on Freenode. They're extremely helpful with this kind of thing.

[scohen]

@fire, does that help?

[fire]

Yes, but I need more work on the ssl.

[scohen]

Closing, as this is more of a thrift implementation issue (and we talked in IRC)