add support for multiple request body types

It's possible to declare different request bodies for different content types.

Currently we simply use the first one that we find:

openapi-code-generator/packages/openapi-code-generator/src/typescript/common/typescript-common.ts

Lines 95 to 109 in 1ffdc52

    
           // todo support multiple request body types 
        
           for (const [requestBodyContentType, definition] of Object.entries(requestBody.content)) { 
        
             return { 
        
               requestBodyContentType, 
        
               requestBodyParameter: { 
        
                 name: "requestBody", 
        
                 description: requestBody.description, 
        
                 in: "body", 
        
                 required: requestBody.required, 
        
                 schema: definition.schema, 
        
                 allowEmptyValue: false, 
        
                 deprecated: false, 
        
               }, 
        
             } 
        
           }

At a minimum we should support:

multipart/form-data
application/octet-stream
text/plain

Ideally we'd additionally support XML, but that might be left for it's own issue.

any news about this ?

Some progress has been made, primarily around supporting more than just JSON (eg: https://github.com/mnahkies/openapi-code-generator/blob/main/packages%2Fopenapi-code-generator%2Fsrc%2Ftypescript%2Fcommon%2Ftypescript-common.ts#L160-L186)

I've been on a bit of a hiatus whilst I work on other projects, but planning to renew focus on this one over the next few weeks.

If you have specific requirements that would be useful input into prioritization. Eg: are you looking for multi-part form data, content negotiation, or something else?

Yes. Il have few entrypoints in my openai contract dedicated for document upload.
Because of the size of the documents, multiparty/form-data is the best choice.

I'm forced to develop an independent koa router to manage it
Same at client side, I must wrap the client api with a FormData I cast back

Makes sense - yeah multi-part is basically next up on the list, it's a use case I have as well, I'd expect to get to this in the next month.

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add support for multiple request body types #42

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	// todo support multiple request body types
	for (const [requestBodyContentType, definition] of Object.entries(requestBody.content)) {
	return {
	requestBodyContentType,
	requestBodyParameter: {
	name: "requestBody",
	description: requestBody.description,
	in: "body",
	required: requestBody.required,
	schema: definition.schema,
	allowEmptyValue: false,
	deprecated: false,
	},
	}
	}

add support for multiple request body types #42

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paztis commented on Nov 5, 2026

mnahkies commented on Nov 6, 2026

paztis commented on Nov 6, 2026

mnahkies commented on Nov 6, 2026

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