param.required

• Used to indicate whether an API parameter is required (means cannot be empty).

Built-in recommended configuration

#Support for javax.validation annotations
param.required=@javax.validation.constraints.NotBlank
param.required=@"javax.validation.constraints.NotNull
param.required=@javax.validation.constraints.NotEmpty

Add support for swagger @ApiParam

param.required=@io.swagger.annotations.ApiParam#required

demo

MockCtrl.java

@RestController
@RequestMapping(value = "mock")
public class MockCtrl {

    /**
    * Mock String
    */
    @GetMapping("/string")
    public String mockString(
            @ApiParam(value = "seed for mock", required = true, defaultValue = "666666") long seed) {
        return Result.success("mock string");
    }

}

Export as API response:

Request Parameters: