[FIXED] How to change namingStrategy in springdoc?

Issue

I am using springdoc. It works flawlessly, except I am trying to change the default camelCase to PascalCase requests mapping.

I searched through the docs and cannot find a configuration to adjust property naming.

How can I change property naming when working with springdoc?

Solution

As @Debargha Roy mentioned in his answer, there is no clear way to do it via springdoc properties.

I propose my solution for Kotlin based on GitHub thread.

To get PascalCase or UpperCamelCase in Swagger, you can use ModelResolver:

@Bean
fun modelResolver(objectMapper: ObjectMapper): ModelResolver {
    return ModelResolver(jacksonObjectMapper().registerModule(KotlinModule()).setPropertyNamingStrategy(PropertyNamingStrategy.UPPER_CAMEL_CASE))
}

It doesn't resolve the output response from Spring @RestController.

By default, Spring uses Jackson mapper to make responses follow UpperCamelCase, use this property spring.jackson.property-naming-strategy=UPPER_CAMEL_CASE in properties/yaml file.

After these 2 changes, both your Swagger and RestController will follow the UpperCamelCase style.

NOTE:

Beware, if you decided to reuse incoming objectMapper (see the snippet below), you may get duplicated payload with mixed camelCase:

@Bean
fun modelResolver(objectMapper: ObjectMapper): ModelResolver {
    return ModelResolver(objectMapper.registerModule(KotlinModule()).setPropertyNamingStrategy(PropertyNamingStrategy.UPPER_CAMEL_CASE))
}

Answered By - Dmytro Chasovskyi
Answer Checked By - Pedro (JavaFixing Volunteer)