To cache Next.js pages in Spring Cloud Gateway, you can use Spring Cache and Caffeine. You can write a filter that caches the response for specific requests. Here is an example of how to do it:
@Component
@Slf4j
public class CacheResponseGatewayFilterFactory extends AbstractGatewayFilterFactory<CacheResponseGatewayFilterFactory.Config> {
public CacheResponseGatewayFilterFactory() {
super(Config.class);
}
@Override
public GatewayFilter apply(Config config) {
return (exchange, chain) -> {
String cacheKey = exchange.getRequest().getURI().toString();
Cache.ValueWrapper
cachedResponse = cacheManager.getCache("myCache").get(cacheKey);
if (cachedResponse != null) {
log.info("Returning cached response for {}", cacheKey);
return Mono.just(cachedResponse.get());
}
return chain.filter(exchange).doOnNext(response -> {
if (response.getStatusCode().is2xxSuccessful()) {
log.info("Caching response for {}", cacheKey);
cacheManager.getCache("myCache").put(cacheKey, response);
}
});
};
}
public static class Config {
// Put the configuration properties here
}
}