soyjeansoy
Mix task: calling a function outside the application
Hi! I have a library called :my_library (or MyLibrary ) that’s installed as dependency for my app :my_app (or MyApp ).
MyLibrary has a mix task which calls a function defined in MyApp.Collection.create , passing the args from mix task.
I’m curious how can I run that function from MyLibrary mix task, since it’s throwing UndefinedFunctionError (since MyLibrary don’t know anything about MyApp from mix task)
** (UndefinedFunctionError) function MyApp.Collection.create/1 is undefined (module MyApp.Collection.create/1 is not available)
...
Marked As Solved
cmo
Looks like you’ve got it upside down 
. Can you pass an arg to the task instead or move the task into the app?
Notes on using application config:
Popular in Questions
Other popular topics
Latest on Elixir Forum
Sponsor Spotlight
Develop your skills with books, videos, and courses.
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 for Elixir devs who love to ship. Start your free account.
Producing high quality Elixir screencasts since 2017.
Enabling companies to succeed by building software people love.
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!"