This content originally appeared on DEV Community and was authored by Stephen Solka
Introduction
This weekend I built a new Astro component that lets callers use external commands on their machine to generate html content.
trashhalo
/
astro-command
run commands as astro components
In the repository there is a hello world demo that is shelling out to python.
--------
import { Command } from "astro-command";
--------
<Command caller={import.meta.url} command="./Component.py" message="from python!" />
#!/usr/bin/env python
import sys, json
data = json.load(sys.stdin)
print(f'<h1> Hello {data["message"]} </h1>')
Props are passed in as a json blob to stdin. Html comes out stdout.
Taking it up a notch
Python has a very deep well of libraries that can be useful for astro page generation. One example is https://matplotlib.org/ a plotting library that can generate beautiful graphs outputting SVG.
As a quick example I rewrote the hello world py component to output a graph instead.
Its not just python
Now that you have shell access from Astro you can use any command! The first one I created a custom component for is Pandoc to get access to all the types of content Pandoc can understand. With 12 lines of astro code I unlocked 30+ file formats!
Astro Pandoc
Astro component for using pandoc to convert content. This allows you to embed any format pandoc supports.
- Supported formats https://pandoc.org/MANUAL.html#general-options
- Demo
- Requires you to have pandoc installed on your machine!
Usage
---
import { Pandoc } from "astro-pandoc"
---
<Pandoc caller={import.meta.url} file="Component.tex" extraArgs={["--webtex"]} /
Component.tex
\documentclass{article}
\usepackage{amsmath} % for the equation* environment
\begin{document}
This is a simple math expression \(\sqrt{x^2+1}\) inside text.
And this is also the same:
\begin{math}
\sqrt{x^2+1}
\end{math}
but by using another command.
This is a simple math expression without numbering
\[\sqrt{x^2+1}\]
separated from text.
This is also the same:
\begin{displaymath}
\sqrt{x^2+1}
\end{displaymath}
\ldots and this:
…
Whats next?
There are lots of commands out there. Which one should I connect to astro next?
This content originally appeared on DEV Community and was authored by Stephen Solka
Stephen Solka | Sciencx (2021-09-19T19:04:43+00:00) Astro Command unlocks the world. Retrieved from https://www.scien.cx/2021/09/19/astro-command-unlocks-the-world/
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