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kotlinlang

can anyone recommend something to generate code from openapi definitions? using the official openapi generator generates code that won't compile

I'm using official openapi generator gradle plugin just to generate models. I think other things are fairly easy to write manually.

This is my configuration:
```openApiGenerate {
    generatorName.set("kotlin")
    inputSpec.set("$rootDir/src/main/resources/api.yaml")
    outputDir.set("$rootDir")
    modelPackage.set("my.package.model")
    configOptions.set(
        mapOf(
            "library" to "jvm-ktor",
            "dateLibrary" to "kotlinx-datetime",
            "serializationLibrary" to "kotlinx_serialization",
        )
    )
    globalProperties.set(
        mapOf(
            "models" to "",
            "modelDocs" to "false",
            "modelTests" to "false",
        )
    )
}```

image.png

It probably depends on the features used in the api description.

probably need to fall back on java, but that would mean losing nullability

Have you tried validating the api definition?

java -jar openapi-generator-cli.jar validate -i api-descriptions/productservice.yml
Validating spec (api-descriptions/productservice.yml)
Warnings:
	- Unused model: productTemplateAttributes
	- Unused model: salePricesData
	- Unused model: productVariantAttributes
	- Unused model: productCustomAttributes

[info] Spec has 4 recommendation(s).

productservice.yml

I think it's just a bug of the kotlin generator :disappointed:

We use the `org.openapi.generator` gradle plugin to generate models from our openAPI spec. It's not perfect and I don't trust its generated Client classes, but the Models are good.

I've also found the official generator to be too buggy. For us, <https://github.com/fabrikt-io/fabrikt|Fabrikt> seems to work better.

I also don’t like the official generator so I wrote my own generator: <https://github.com/hfhbd/kfx|https://github.com/hfhbd/kfx>