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Library to convert cURL command line to HTTPie

Project description

Python library to convert cURL command to HTTPie.

It will convert

curl -d name=admin -d shoesize=12 -d color=green&food=wet


http -f name=admin shoesize=12 color=green food=wet


This library was born when I joined a project with a team of non-Linux, non-Python developers. Because the project didn’t have proper documentation, the other team often shared API usage example to me in form of cURL command, generated from their daily-used Postman. Those cURL commands are usually ugly, like this:

curl --location --request POST '' \
--header 'Content-Type: application/json' \
--data-raw '{
    "userId": "abc-xyz",
    "planAmount": 50000,
    "isPromotion": false,
    "createdAt": "2019-12-13 10:00:00"

I am more comfortable with HTTPie (shorter syntax, has highlighting and is a Python application), so I often converted it to HTTPie:

http -F userId=abc-xyz planAmount:=50000 isPromotion:=false createdAt='2019-12-13 10:00:00'

Though Postman can generate HTTPie, it does result in even uglier command:

printf '{
    "userId": "abc-xyz",
    "planAmount": 50000,
    "isPromotion": false,
    "createdAt": "2019-12-13 10:00:00"
}'| http  --follow --timeout 3600 POST \

Initially, I had to do conversion manually and quickly got tired from it. I tried to find a conversion tool but failed. There is an online tool, but it failed with above example. So I decide to write my own tool.

I don’t bother to help fix the online tool above, because it is written in Go. The rich ecosystem of Python, with these built-in libraries, enable me to finish the job fast:

  • shlex: Help parse the command line in form of shell language, handle the string escaping, quoting for me.
  • argparse: Help parse cURL options and arguments. Note that, cURL arguments syntax follow GNU style, which is common in Linux (and Python) world but not popular in Go world (see this tutorial), so it feels more natural with Python.


>>> from curlipie import curl_to_httpie

>>> curl = """curl -XPUT -d '{"director": "Burton, Tim", "year": 1996, "title": "Mars Attacks!"}' -H 'Content-Type: application/json'"""

>>> curl_to_httpie(curl)
ConversionResult(httpie="http PUT director='Burton, Tim' year:=1996 title='Mars Attacks!'", errors=[])

>>> result = curl_to_httpie(curl)

>>> result.httpie
"http PUT director='Burton, Tim' year:=1996 title='Mars Attacks!'"

Online tool

CurliPie is not very usable if it stays in library form, so I made an online tool for you to use it quickly:

The site also provide HTTP API for you to develop a client for it.


This repo contains three components:

To try running on localhost:

  • Run backend with:

    uvicorn api.main:app
  • The front-end are just static files, served by backend also, so you can access it via http://localhost:8000/. But because TailwindCSS is configured to strip unused CSS classes, you may need to rerun this command, inside frontend-dev folder, to keep your classes:

    yarn build-tailwind

Unit test:



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