MatUrbanski
Rescue Phoenix.MissingParamError and return json
In my controller action i have two scrub_params clauses:
plug :scrub_params, "account"
plug :scrub_params, "studio"
When one of params is not present Phoenix raises Phoenix.MissingParamError. Is there any way to rescue this error and return some json message for user?
Marked As Solved
chrismccord
plug MyApp.ScrubParams, "account"
defmodule MyApp.ScrubParams do
def init(key), do: key
def call(conn, key) do
Phoenix.Controller.scrub_params(conn, key)
rescue
Phoenix.MissingParamError ->
conn
|> Plug.Conn.put_status(:bad_request)
|> Phoenix.Controller.render(MyApp.ErrorView, "bad_params.json", key: key)
|> Plug.Conn.halt()
end
end
Also Liked
chrismccord
voughtdq
idi527
Shouldn’t there be a try somewhere? I’ve never seen rescue for def.
Heh, here it is Kernel — Elixir v1.20.2.
Popular in Questions
Other popular topics
Latest Phoenix Threads
Latest on Elixir Forum
Sponsor Spotlight
Supporting innovation across the BEAM ecosystem.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #deployment
- #library
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #channels
- #elixirconf
- #exunit
- #discussion
- #code-sync
- #javascript
- #podcasts
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #blog-post
- #graphql
- #genstage
- #ai
- #websockets
- #supervisor
- #elixirconf-us
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #metaprogramming
- #security
- #hex
Our Sponsors
Build Elixir applications with speed and confidence.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Develop your skills with books, videos, and courses.
Producing high quality Elixir screencasts since 2017.
The deployment platform built for Elixir: PaaS ease, VPS control.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"