I absolutely love the switch to Milligram. Not because I use Milligram (I don’t), but because all the generated markup is now class free. I know that was mentioned before, but I think it’s been really undervalued.
phoffer
bkolobara
I’m trying to upgrade my 1.3 app to 1.4, but after following the steps I get an error that Poison is missing:
warning: failed to load Poison for Phoenix JSON encoding
(module Poison is not available).
Ensure Poison is loaded from your deps in mix.exs, or
configure an existing encoder in your Mix config using:
config :phoenix, :json_library, MyJSONLibrary
(phoenix) lib/phoenix.ex:40: Phoenix.start/2
(kernel) application_master.erl:277: :application_master.start_it_old/4
I have httpoisn added to the startup applications:
def application do
[
mod: {Lindaestate.Application, []},
extra_applications: [:logger, :runtime_tools, :httpoison]
]
end
2
sneako
Do you have poison in your mix.exs? Phoenix has switched to the Jason lib now, which is a drop in replacement, with better performance.
Also, poison and httpoison are two different libs, one is for json the other is an http client
4
bkolobara
Thanks for the fast answer. After I added {:poison, "~> 3.0"} to my mix.exs it stopped complaining.
But I also needed to add {:jason, "~> 1.1"} or the live_reload would report errors.
2
OvermindDL1
That implies that Poison is being used or referenced from somewhere, maybe in a config file, should correct those to Jason and remove Poison from your mix.exs file. 
5
oldpond
l00ker
In app_web/endpoint.ex make sure json_decoder: is set to Phoenix.json_library() and not Poison.
# app_web/endpoint.ex
plug Plug.Parsers,
parsers: [:urlencoded, :multipart, :json],
pass: ["*/*"],
- json_decoder: Poison
+ json_decoder: Phoenix.json_library()
Edit: You should make sure this is in your config/config.exs. I was going from memory and forgot I had to do that as well.
# config/config.exs
+ config :phoenix, :json_library, Jason
8
polypush135
First: A huge thank you for all your work, this is great!! 
I’m trying to get http2 working.
I’ve updated cowboy, I’ve generated the cert and I updated the config.
When I hit the 4001 endpoint I get an odd response.
localhost didn’t send any data.
ERR_EMPTY_RESPONSE
Thoughts?
0
outlog
afaik http2 is ssl/https only.. so try https://localhost:4001 - though obviously http(1) should work, but that depends on your config perhaps..
0
polypush135
derp: Didn’t even notice the protocol. So if I put just plain localhost:4001 why is it defaulting to http not https? Is there a force https?
0