Hello, Does anyone have any experience of building a Token Based API Authentication using Coherence ? I’m running into some issues with my code present as part of this PR - [WIP] Add Token Based User Auth using Coherence by boddhisattva · Pull Request #1 · boddhisattva/user_auth · GitHub.
When I try to create a DB and run the migrations I get the below error:
➜ user_auth git:(add_auth) ✗ mix ecto.create && mix ecto.migrate
Compiling 22 files (.ex)
warning: variable "token" does not exist and is being expanded to "token()", please use parentheses to remove the ambiguity or change the variable name
lib/user_auth_web/channels/user_socket.ex:26
== Compilation error in file lib/user_auth_web/channels/user_socket.ex ==
** (CompileError) lib/user_auth_web/channels/user_socket.ex:26: undefined function token/0
(stdlib) lists.erl:1338: :lists.foreach/2
(stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
(elixir) lib/kernel/parallel_compiler.ex:121: anonymous fn/4 in Kernel.ParallelCompiler.spawn_compilers/1
➜ user_auth git:(add_auth) ✗
As per the README here , I’m supposed to add the below Token credentials:
token = Coherence.Authentication.Token.generate_token
Coherence.CredentialStore.Server.put_credentials(token, %{role: :admin})
But I’m not exactly sure where should I add them. I tried adding them as a part of the def connect in user_socket.ex like(I’m still not sure where should the line Coherence.CredentialStore.Server.put_credentials(token, %{role: :admin}) go):
def connect(_params, socket) do
token = Coherence.Authentication.Token.generate_token
case Coherence.verify_user_token(socket, token, &assign/3) do
{:error, _} -> :error
{:ok, socket} -> {:ok, socket}
end
end
but then I ran into another error:
➜ user_auth git:(add_auth) ✗ mix ecto.create && mix ecto.migrate
Compiling 22 files (.ex)
== Compilation error in file lib/user_auth_web/router.ex ==
** (KeyError) key :source not found in:
(elixir) lib/keyword.ex:371: Keyword.fetch!/2
lib/coherence/plugs/authorization/token.ex:82: Coherence.Authentication.Token.init/1
(plug) lib/plug/builder.ex:193: Plug.Builder.init_module_plug/3
(plug) lib/plug/builder.ex:181: anonymous fn/4 in Plug.Builder.compile/3
(elixir) lib/enum.ex:1826: Enum.“-reduce/3-lists^foldl/2-0-”/3
(plug) lib/plug/builder.ex:181: Plug.Builder.compile/3
lib/user_auth_web/router.ex:23: (module)
(stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
(elixir) lib/kernel/parallel_compiler.ex:121: anonymous fn/4 in Kernel.ParallelCompiler.spawn_compilers/1
➜ user_auth git:(add_auth) ✗
I’m a beginner to Phoenix so it’s quite possible that I could be missing something. Any tips on how to debug this would be really helpful…
