Other users, however, had a different experience. Those who required uninterrupted uptime and consistent global performance found the value in paying more for .
Sometimes you need a that can be revoked. Use Proxy.revocable . proxy made with reflect 4 top
Consider a generic logging proxy: it takes any object, uses reflect.Value.MethodByName to invoke the original, and wraps the result. This is powerful but verbose and unsafe—mistyped method names cause runtime panics. Unlike Java or C#, Go cannot generate a new type that implements an interface at runtime; you must manually write a proxy struct or use reflect.MakeFunc to create function proxies. This reflects Go’s philosophy of clarity over magic: reflection is available but feels like a deliberate escape hatch, not a first-class tool for dynamic proxies. Other users, however, had a different experience
const safeHandler = get(target, prop, receiver) if (!Reflect.has(target, prop)) return `Property [$prop] does not exist.`; return Reflect.get(target, prop, receiver); ; const config = new Proxy( theme: "dark" , safeHandler); console.log(config.theme); // "dark" console.log(config.fontSize); // "Property [fontSize] does not exist." Use code with caution. The "Receiver" Argument: Why It Matters Use Proxy
The receiver in traps like get and set is the proxy itself (or an object inheriting from it). Always pass it to Reflect .
; , handler); Use code with caution. Copied to clipboard 2. Reflect4: Web Proxy Hosting
However, with the powerful optimizations introduced in JDK 8 and enhanced in later versions, the performance of reflective calls has improved significantly. While Byte Buddy and CGLIB still often top the charts in raw call throughput, the gap is now much smaller. In the vast majority of (services with REST APIs, database access, moderate concurrency), the performance of JDK Dynamic Proxy is more than adequate. The primary bottleneck will never be the proxy mechanism itself. In performance-critical scenarios, like the core of a high-throughput RPC engine or a real-time trading system, then the enhanced throughput of Byte Buddy or Javassist becomes a critical advantage.