Enable Authorize button in springdoc-openapi-ui for Bearer Token Authentication (JWT)

I prefer to use bean initialization instead of annotation.

@Configuration
public class OpenApi30Config {

  private final String moduleName;
  private final String apiVersion;

  public OpenApi30Config(
      @Value("${module-name}") String moduleName,
      @Value("${api-version}") String apiVersion) {
    this.moduleName = moduleName;
    this.apiVersion = apiVersion;
  }

  @Bean
  public OpenAPI customOpenAPI() {
    final String securitySchemeName = "bearerAuth";
    final String apiTitle = String.format("%s API", StringUtils.capitalize(moduleName));
    return new OpenAPI()
        .addSecurityItem(new SecurityRequirement().addList(securitySchemeName))
        .components(
            new Components()
                .addSecuritySchemes(securitySchemeName,
                    new SecurityScheme()
                        .name(securitySchemeName)
                        .type(SecurityScheme.Type.HTTP)
                        .scheme("bearer")
                        .bearerFormat("JWT")
                )
        )
        .info(new Info().title(apiTitle).version(apiVersion));
  }
}

The line of code

.addSecurityItem(new SecurityRequirement().addList(securitySchemeName))

allows to add global security schema and to get rid of writing security to each @Operation of method.

Define a global security scheme for OpenAPI 3.0 using annotation @io.swagger.v3.oas.annotations.security.SecurityScheme in a @Configuration bean:

@Configuration
@OpenAPIDefinition(info = @Info(title = "My API", version = "v1"))
@SecurityScheme(
    name = "bearerAuth",
    type = SecuritySchemeType.HTTP,
    bearerFormat = "JWT",
    scheme = "bearer"
)
public class OpenApi30Config {

}

Annotate each @RestController method requiring Bearer Token Authentication (JWT) with @io.swagger.v3.oas.annotations.Operation referencing the defined security scheme:

@Operation(summary = "My endpoint", security = @SecurityRequirement(name = "bearerAuth"))