Ruby の http クライアントの使い方 (Post)

faraday というライブラリーを使います。

プログラム

http_post.rb

#! /usr/bin/ruby
# -*- encoding: utf-8 -*-
#
#	http_post.rb
#
#					Nov/22/2018
#
# ---------------------------------------------------------------------
require 'faraday'
require 'json'
#
# ---------------------------------------------------------------------
STDERR.puts	"*** 開始 ***"
#
URL="https://httpbin.org/post"
#
args = {}
args['user'] = 'jiro'
args['password'] = '123456'
#res = Faraday.post URL
con = Faraday.new 
res = con.post do |req|
	req.url URL
	req.headers['Content-Type'] = 'application/json'
	req.body = JSON.pretty_generate(args)
end

# puts	res
puts	res.status
# puts	res.body

json_str = res.body

dict_data=JSON.parse(json_str)
#
puts	"Host:\t" + dict_data['headers']['Host']
puts	"origin:\t" + dict_data['origin']
puts	"url:\t" + dict_data['url']
#
STDERR.puts	"*** 終了 ***"
# ---------------------------------------------------------------------

実行結果

$ ./http_post.rb 
Top level ::CompositeIO is deprecated, require 'multipart/post' and use `Multipart::Post::CompositeReadIO` instead!
Top level ::Parts is deprecated, require 'multipart/post' and use `Multipart::Post::Parts` instead!
*** 開始 ***
200
Host:	httpbin.org
origin:	219.126.135.100
url:	https://httpbin.org/post
*** 終了 ***

確認したバージョン

$ ruby --version
ruby 3.0.5p211 (2022-11-24 revision ba5cf0f7c5) [x86_64-linux]

$ pacman -Q ruby-faraday
ruby-faraday 1.8.0-1