# ...
cloudflare_r2:
  access_key_id: YOUR_KEY
  secret_access_key: YOUR_SECRET

# ..

cloudflare:
  service: S3
  endpoint: https:/you-will-fild-this-url-in-bucket-settings-bucket-details.cloudflarestorage.com
  access_key_id: <%= Rails.application.credentials.dig(:cloudflare_r2, :access_key_id) %>
  secret_access_key: <%= Rails.application.credentials.dig(:cloudflare_r2, :secret_access_key) %>
  region: auto
  bucket: name_of_my_bucket

Direct upload

[
  {
    "AllowedOrigins": [
      "localhost:3000"
    ],
    "AllowedMethods": [
      "PUT"
    ],
    "AllowedHeaders": [
      "*"
    ],
    "ExposeHeaders": [
      "Origin",
      "Content-Type",
      "Content-MD5",
      "Content-Disposition"
    ],
    "MaxAgeSeconds": 3600
  }
]

[
  {
    "AllowedOrigins": [
      "http://localhost:3006",
      "https://myproductionapp.com"
    ],
    "AllowedMethods": [
      "PUT", "GET", "HEAD"
    ],
    "AllowedHeaders": [
      "Origin",
      "Content-Type",
      "Content-MD5",
      "Content-Disposition"
    ],
    "ExposeHeaders": [
      "ETag"
    ],
    "MaxAgeSeconds": 3600
  }
]