Add Facebook Open Graph tags to Phoenix Framework web page

Hi there,

This is very easy:

1. Create a function in LayoutView web/views/layout_view.ex:

Here I was using content_tag function but it created closed </meta> tag which I don’t really like.
In the else clause you can put some default OG tags, I put only fb:app_id fir the start.

2. Add this function to the app layout template web/templates/layout/app.html.eex:

Where assigns is the map which contains almost everything you need to render the view.

3. Update your controller function with OG tags tuple and pass it to template like this:

I guess the code here is self-explanatory (I used code from my pet-project www.instadreams.com).
If you have some thought how we can improve the code above feel free to post a comment here 🙂

Deps issue: (Mix) Hex dependency resolution failed, relax the version requirements or unlock dependencies

(Mix) Hex dependency resolution failed, relax the version requirements or unlock dependencies

I have faced the issue when you add new dependancy to your Elixir project and appeared it used different version of some deps (because developer fixed deps version).
Continue reading “Deps issue: (Mix) Hex dependency resolution failed, relax the version requirements or unlock dependencies”

cat: deps/exrm/mix.exs: No such file or directory on edeliver build host

During building my elixir app with edeliver (mix edeliver build release) have faced this error:

Please make sure you have exrm in your mix.exs deps:

IMPORTANT! After you add this to the mix.exs run mix deps.get, commit the changes and run again mix edeliver build release