Use OpenAI Image API to "draw" a ruby in Ruby

generate_image.rb

require "json"
require "bundler"
Bundler.require :default

# Gemfile:
# ---
# source "https://rubygems.org"
# gem "excon"

OPENAI_API_KEY = ENV["OPENAI_API_KEY"]

API_ROOT = "https://api.openai.com/v1"

def generate_image(prompt:)
  args = {
    "prompt"  => prompt,
    "n"       => 1,
    "size"    => "1024x1024",
  }
  headers = {
    "Authorization" => "Bearer #{OPENAI_API_KEY}",
    "Content-Type"  => "application/json",
  }

  response = Excon.post(
    "#{API_ROOT}/images/generations",
    body:     args.to_json,
    headers:  headers,
  )
  resp = JSON.parse(response.body)
  resp.fetch("data").first.fetch("url")
end

prompt = "one stone, shining stone, multifaceted gem, pyramidal ruby, ruby stone gem top view, light on multifaceted gem faces, gem edges, multicolor, synthwave, red, dark translucent red, color, 4k, hdr, digital art, artstation super trending, incredible detail, hq"

image_url = generate_image prompt: prompt
puts image_url

`open "#{image_url}"` # opens the image on mac