Support multiple ContentTypes per route

[p-bakker]

The README.md says 'fastify only supports one schema per route.'

I don't think that it true anymore, see fastify/fastify#4264 and https://fastify.dev/docs/latest/Reference/Validation-and-Serialization/#serialization

Am I correctly interpreting the Fastify documentation? If so, could this plugin be amended to properly support response schema's per content per result code?

[p-bakker]

Different feature, but maybe also interesting to support: fastify/fastify#5545

[seriousme]

The README.md says 'fastify only supports one schema per route.'

I don't think that it true anymore, see fastify/fastify#4264 and https://fastify.dev/docs/latest/Reference/Validation-and-Serialization/#serialization

Am I correctly interpreting the Fastify documentation? If so, could this plugin be amended to properly support response schema's per content per result code?

Looks like you are right. Supporting it seems to be relatively easy by modifying the v2/v3 parsers a little. I will look into it.

Kind regards,
Hans

[seriousme]

Different feature, but maybe also interesting to support: fastify/fastify#5545

And while we are at it, the same holds for this one.
They can probably be fixed in one go.

Thanks for reporting.

Kind regards,
Hans

[seriousme]

ps. the fix is easy as both requestBody and responses are parsed by:

fastify-openapi-glue/lib/Parser.v3.js

Lines 99 to 112 in 0d73494

	parseContent(data) {
	if (data?.content) {
	const mimeTypes = Object.keys(data.content);
	if (mimeTypes.length === 0) {
	return undefined;
	}
	for (const mimeType of mimeTypes) {
	this.config.contentTypes.add(mimeType);
	}
	// fastify only supports one mimeType per path, pick the last
	return data.content[mimeTypes.pop()].schema;
	}
	return undefined;
	}

Most work, as often, however will be creating the proper tests. I'm a few days away from my dev setup so it might take a while before its done.

Kind regards,
Hans

[seriousme]

Feature added by #650 , published as 4.9.0 on NPM.
Enjoy!

Kind regards,
Hans