cURL to Ruby Code Converter

Q: Should I use Net::HTTP or a gem like Faraday/HTTParty in Rails?

For simple one-off requests, Net::HTTP works well with no Gemfile additions. For Rails applications making multiple external API calls, gems like Faraday, HTTParty, or the newer http gem provide cleaner syntax, middleware support, retries, and better error handling. Faraday is the most flexible — it lets you swap HTTP adapters (Net::HTTP, Typhoeus, Patron) without changing your calling code. The converter outputs Net::HTTP which is a good starting point to understand the request structure before adapting to your preferred gem.

Q: How do I parse JSON responses in Ruby?

After getting the response, use JSON.parse(response.body) to convert the JSON string to a Ruby hash. Add require 'json' at the top of your file. Check response.code.to_i for the HTTP status before parsing — non-200 responses may return error JSON with a different structure. For Rails, response.body from Net::HTTP is a string; call .to_json only when you want to re-encode Ruby objects back to JSON strings.

Q: How do I handle SSL certificate errors in Ruby Net::HTTP?

If you get OpenSSL::SSL::SSLError , verify your SSL certificate store is up to date. Never use http.verify_mode = OpenSSL::SSL::VERIFY_NONE in production — it disables certificate validation entirely. Instead, update your CA bundle: on macOS run brew install openssl , on Linux ensure ca-certificates is installed. If connecting to a server with a self-signed certificate in development, add the cert explicitly with http.ca_file = '/path/to/cert.pem' .

Convert cURL commands to Ruby HTTP code instantly. Get Net::HTTP or Faraday snippets with headers, authentication, and payload preserved — paste directly into your Ruby or Rails project.

Why Convert cURL to Ruby

Ruby's Net::HTTP is powerful but requires significant boilerplate for HTTPS requests with custom headers — creating a URI, enabling SSL, building request objects, and setting headers individually. When integrating APIs in Rails controllers or Ruby scripts, converting from cURL (the format most API docs and DevTools provide) to working Ruby code manually is tedious. This converter generates complete, runnable Ruby snippets from any cURL command in seconds.

Net::HTTP output: Standard library code with no gem dependencies
HTTPS support: SSL/TLS enabled automatically for https:// URLs
Headers preserved: All -H flags converted to proper Ruby header setting
Auth support: Bearer tokens and Basic auth mapped correctly
All HTTP methods: GET, POST, PUT, PATCH, DELETE with correct Net::HTTP classes

Convert cURL to Ruby →

Choose the Right Variant

This page: Ruby Net::HTTP — standard library, zero gem dependencies
cURL to Python: Python requests library
cURL to Go: Go net/http standard library
cURL to PHP: PHP native cURL extension
cURL to Fetch: JavaScript fetch() API

Step-by-Step Tutorial

Copy your cURL command from browser DevTools, Postman, or API documentation
Paste into the converter input field
Select Ruby as the target language
Review the generated Net::HTTP snippet — all headers, auth, and body are included
Copy and paste into your Ruby script or Rails controller action
Run with ruby script.rb or integrate with require 'net/http'

Example Conversion

Input cURL:

curl -X POST https://api.example.com/events \
  -H "Authorization: Bearer mytoken" \
  -H "Content-Type: application/json" \
  -d '{"event":"click"}'

Output Ruby (Net::HTTP):

require 'net/http'
require 'uri'
require 'json'

uri = URI('https://api.example.com/events')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Post.new(uri.path)
request['Authorization'] = 'Bearer mytoken'
request['Content-Type'] = 'application/json'
request.body = '{"event":"click"}'

response = http.request(request)
puts response.body

Privacy and Data Handling

All conversion runs locally in your browser. cURL commands — including API keys and request payloads — never leave your device. Safe to use with development and staging credentials.

Frequently Asked Questions

Should I use Net::HTTP or a gem like Faraday/HTTParty in Rails?

For simple one-off requests, Net::HTTP works well with no Gemfile additions. For Rails applications making multiple external API calls, gems like Faraday, HTTParty, or the newer http gem provide cleaner syntax, middleware support, retries, and better error handling. Faraday is the most flexible — it lets you swap HTTP adapters (Net::HTTP, Typhoeus, Patron) without changing your calling code. The converter outputs Net::HTTP which is a good starting point to understand the request structure before adapting to your preferred gem.

How do I parse JSON responses in Ruby?

After getting the response, use JSON.parse(response.body) to convert the JSON string to a Ruby hash. Add require 'json' at the top of your file. Check response.code.to_i for the HTTP status before parsing — non-200 responses may return error JSON with a different structure. For Rails, response.body from Net::HTTP is a string; call .to_json only when you want to re-encode Ruby objects back to JSON strings.

How do I handle SSL certificate errors in Ruby Net::HTTP?

If you get OpenSSL::SSL::SSLError, verify your SSL certificate store is up to date. Never use http.verify_mode = OpenSSL::SSL::VERIFY_NONE in production — it disables certificate validation entirely. Instead, update your CA bundle: on macOS run brew install openssl, on Linux ensure ca-certificates is installed. If connecting to a server with a self-signed certificate in development, add the cert explicitly with http.ca_file = '/path/to/cert.pem'.