Fix multipart form encoding for PUT requests#245
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- Add rackup gem dependency for Ruby 3.0+ - Update localhost_server.rb to use Rackup::Handler instead of Rack::Handler - Fixes test suite that was broken due to rack/webrick handler being moved to separate rackup gem 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
PUT requests now properly handle multipart form data with files, matching POST behavior: - Check form.multipart? to detect multipart forms in Putable module - Use httppost for multipart forms instead of always using upload/read_callback - Set customrequest='PUT' to override libcurl's default POST method when using httppost - Add comprehensive tests for multipart PUT requests Fixes long-standing issue where PUT requests would not form-encode multipart data, causing Content-Type header to be missing and files to be sent incorrectly. Resolves typhoeus/typhoeus#389 and OpenAPITools/openapi-generator#3138 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This was referenced Aug 10, 2025
voxik
reviewed
Aug 10, 2025
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| if Gem.ruby_version >= Gem::Version.new("3.0.0") | ||
| gem "webrick" | ||
| gem "rackup" |
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I don't think there is any reason to include rackup based on Ruby version. Rackup is needed when Rack 3+ is used.
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Summary
This PR fixes a long-standing issue where PUT requests could not properly handle multipart form data with files. PUT requests now correctly set
Content-Type: multipart/form-dataheaders and encode form data identically to POST requests.Problem
PUT requests with multipart form data (containing files) were not being form-encoded correctly:
Content-Type: multipart/form-dataheader was setSolution
Updated the
Putablemodule to mirrorPostablebehavior:form.multipart?detectionhttppostfor multipart forms instead of always usingupload/read_callbackcustomrequest = 'PUT'to override libcurl's default POST behavior when usinghttppostChanges
lib/ethon/easy/http/putable.rb: Updatedset_formmethod to handle multipart formsspec/ethon/easy/http/put_spec.rb: Added comprehensive tests for multipart PUT requestsGemfile+spec/support/localhost_server.rb: Fixed test suite compatibility with modern Rack versionsTesting
All existing tests pass, plus new tests verify:
httppostinstead ofuploadmultipart/form-datacontent type is sent correctlyRelated Issues
Closes:
Related to:
This resolves a 10+ year old issue that affected Ruby HTTP clients generated by OpenAPI Generator and direct Typhoeus/Ethon usage.