Twisted_T-1000

Twisted_T-1000

What would be the best way of utilizing an npm (or other host language's library) library in my elixir otp app

I want to experiment with calling a javascript libraries’ functions to get a small subset of functionality to eventually plug into my OTP application. My first instinct is to create a script that installs the dependencies via npm and then just put the functions that I need in scripts that i can execute with System.cmd or another library like porcelain just execute the functions I need by passing node scripts/somefunction.js and getting the output to process. This would probably just work for strings but the library I’d like to use may return nested json objects or arrays. What would be the best way to

  1. Call the commands and get elixir datatype equivalents for the output
  2. Package it in a way that I just need a mix command to install it along with deps.get (the package, not node itself)

Most Liked

marcin

marcin

Jokes aside, take a look at Ports.

As for your points:

  1. Go for json or other serialization (which has more data types then a limited set JSON provides)
  2. You could do something similar to how phoenix /assets work, they end up in /priv which is added to the release.
cmo

cmo

Can use Deno: README — DenoEx v0.5.0

And there are these experiments:

Where Next?

Popular in Questions Top

dotdotdotPaul
Okay, I'm having a heck of a time trying to figure out how to best handle the validation of belongs_to associations in Ecto. I'm sure I'...
New
Werner
Hi, I’m using Ubuntu 18.04 and after updating to OTP-24.0 yesterday i have this warning when I run “mix local.hex”: 14:57:30.512 [warn] ...
New
Jim
As a follow up to my earlier question: I have the code compiling and running but not getting a successful login from the rest server. ...
New
fireproofsocks
I’m working on defining a simple Ecto schema for a table (in PostGres), but I don’t see where I can define a column as NOT NULL. Conside...
New
script
If I have a string “1000 cfu/ml” . I want to remove the characters and / and space . So the string is like this "1000" What is the ...
New
stefanchrobot
What’s the safe way to decode a JSON string into a struct? I want to avoid calling String.to_atom. Jason.decode can give me a map with st...
New
myronmarston
The Elixir Typespec docs show the following syntax for keyword lists in typespecs: # ... | [key: type] # keyword lis...
New
aadeshere1
I have a another noob question about loop. Since elixir is immutable, while loop is not directly possible. total = 10 while total != 0 ...
New
rms.mrcs
Hi, I need to transform a list of numbers into a map where the keys are the indexes and the values are the original values of the list....
New
ashish173
I am using Ecto timestamps with postgres, I can see the timestamps() use the :naive_dateime but for my use case I wanted to store the ti...
New

Other popular topics Top

sergio_101
I am VERY much an elixir newbie. I have taken one elixir course and one phoenix course on Udemy. During that course, I saw the instructor...
New
fireproofsocks
I’m working on defining a simple Ecto schema for a table (in PostGres), but I don’t see where I can define a column as NOT NULL. Conside...
New
chensan
I have a User schema with a :from_id field set to type :string: defmodule TweetBot.Repo.Migrations.CreateUsers do use Ecto.Migration ...
New
rms.mrcs
Hi, I need to transform a list of numbers into a map where the keys are the indexes and the values are the original values of the list....
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
fireproofsocks
Forgive me if this is obvious, but how does one delete a database record WITHOUT selecting it first? https://hexdocs.pm/ecto/Ecto.Repo.h...
New
Qqwy
Original source of discussion: This topic on the Pragmatic Programmers' Functional Web Development with Elixir, OTP, and Phoenix forum. ...
New
skosch
To my knowledge, put_in, Map.update etc. all have the one limitation of not automatically creating intermediate keys when needed (for exa...
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
jay1
Why is it that the mnesia database isn’t the most preferred database for use in Elixir/Phoenix?
New

We're in Beta

About us Mission Statement