@half0wl/container / wrapWithTracing

Function: wrapWithTracing()

function wrapWithTracing(
   instance, 
   trace, 
   stopAt): void;

Defined in: helpers.ts:50

Wrap all methods on an instance with a tracing function.

Walks the prototype chain from the instance up to stopAt, wrapping every method (functions with a value descriptor) with the trace callback. Getters, setters, and the constructor are skipped. When a method exists on multiple prototypes in the chain, the closest (most derived) version wins.

Span names follow the ClassName.methodName format.

Parameters

Parameter	Type	Description
instance	object	The object instance whose methods will be wrapped
trace	TraceFn	The tracing function that wraps each method call
stopAt	object	The prototype to stop walking at (typically BaseService.prototype)

Returns

void

Example

wrapWithTracing(instance, (spanName, fn) => {
  console.log(`>> ${spanName}`);
  const result = fn();
  console.log(`<< ${spanName}`);
  return result;
}, BaseService.prototype);