lg5-spring-client

lg5-spring-client agrega soporte para OpenFeign — clientes REST declarativos para comunicación entre microservicios.

Propósito

Agrega automáticamente:

• spring-cloud-starter-openfeign 4.2.0
• FeignClientConfiguration con Basic Auth
• CustomErrorDecoder para mapear HTTP status a excepciones

---

Dependencias

// lg5-spring-client/build.gradle.kts
dependencies {
    api(libs.openfeign)
}

---

FeignClientConfiguration

# application.yaml properties que necesitas definir
third:
    basic:
        auth:
            username: your-username
            password: your-password

@Configuration
public class FeignClientConfiguration {
    @Value("${third.basic.auth.username}")
    private String username;

    @Value("${third.basic.auth.password}")
    private String password;

    @Bean
    public BasicAuthRequestInterceptor basicAuthRequestInterceptor() {
        return new BasicAuthRequestInterceptor(username, password);
    }

    @Bean
    public ErrorDecoder errorDecoder() {
        return new CustomErrorDecoder();
    }
}

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CustomErrorDecoder

Mapea códigos HTTP a excepciones Java:

HTTP Status	Excepción
400	BadRequestException
404	NotFoundException
other	Exception default

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Ejemplo de Uso

<dependency>
    <groupId>com.lg5.spring</groupId>
    <artifactId>lg5-spring-client</artifactId>
</dependency>

@FeignClient(name = "thirdSystem", url = "${third.system.url}")
public interface ThirdSystemClient {
    @GetMapping("/api/resource")
    ResponseModel getResource();
}