vinibrl

vinibrl

Typespec for any struct with required key

I’m looking for a typespec that would match, for instance:

%Foo{specific_key: "abc"}
%Bar{specific_key: "abc"}
%Baz{specific_key: "abc"}

I’m using %{specific_key: String.t()} but that can match maps as well. Is there something like %_{specific_key: String.t()} as there is for pattern matching (%_{...}) for typespec?

Marked As Solved

brettbeatty

brettbeatty

One option would be specifying the :__struct__ field

%{__struct__: module(), specific_key: String.t()}

Though depending on your use case you may not even want to limit it to structs.

Where Next?

Popular in Questions Top

_russellb
I want to try my hand at web scraping. What tools/libraries do I need to use. I’m hoping to turn this into something professional so don’...
New
Harrisonl
We have an ECS cluster with 4 services, where each task joins a single cluster, via discovery ECS discovery service. Currently when I de...
New
electic
Hi, I am new to Elixir. I am trying to use the DateTime component to insert a date into MySQL however the there seems to be no way to fo...
New
mgjohns61585
Could someone help me? I’m making my first elixir program, number guessing game. I can’t figure out how to convert the user’s guess from ...
New
vrod
I am using the Starship cross-shell prompt – it seems pretty nice, but I get some errors: [WARN] - (starship::utils): Executing command ...
New
vonH
When I run the Plug and I recompile I wind up having to use Ctrl C to quit iex and start again. Witht the help of rlwrap I can use the cu...
New
RisingFromAshes
I’ve read in another post that it may be possible with a router helper - but I couldn’t find an appropriate one, and tbh, I’m still just ...
New
fayddelight
I tried installing elixir 1.11.2 erlang 23.3.4 via asdf in my zsh shell. Enabled the versions locally and globally. When I list them ...
New
JDanielMartinez
Hi! May someone helps me, please! I have two apps into an umbrella project: the first one is Database, which manages queries, and the se...
New
jason.o
In the code below, if the create action is not set to accept “extra_key” as an input, it errors out with a message shown above. Is there ...
New

Other popular topics Top

hakarabakara1
I have three modules, a Business which is associated Tags and Categories though join tables business_tags and business_categories. I inte...
New
aesmail
Hello guys, I have finally made it. I created an admin interface for a framework. It’s been on my todo list for years and with the curre...
New
alice
Hey, Just curious what are the main benefits of Elixir compared to Clojure? When is Elixir more useful than Clojure and vice versa? Th...
New
SoCreat
i’m a new one to elixir which editor can i use vs code? or atom? Thanks! :smiley:
New
gausby
I asked this very same question on twitter and got some interesting feedback, but I thought it would be a good question to ask here as we...
1207 39297 209
New
romenigld
I am trying to run a deploy with docker and I successfully runned with this command: docker build -t romenigld/blog-prod . but when I t...
New
nsuchy
Hi. I’ve noticed that Windows Powershell has it’s own IEX command and you cannot access Elixir’s IEX due to the conflict. This isn’t a cr...
New
komlanvi
Hi everyone, I was playing with phoenix liveView but I run into an issue. I have a form and want to validate each input text when the te...
New
shijith.k
I am trying to start a new phoenix project with elixir 1.9, but mix phx.new does not work. It says that ** (Mix) The task "phx.new" could...
New
AstonJ
Seen any cool LiveView demos, sample apps or examples? Please post them here! :003:
New

We're in Beta

About us Mission Statement