RegisterMethodHooks
registerMethodHooks
Allows you to register hooks for a specific method of an instrumented class. These hooks allow extra telemetry actions to be performed on the method.
They can then be passed to the TelemetryPlugin via the TelemetryPluginOptions.
Example
const productServiceHooks = registerMethodHooks(ProductService, {
findOne: {
// This will be called before the method is executed
pre: ({ args: [ctx, productId], span }) => {
span.setAttribute('productId', productId);
},
// This will be called after the method is executed
post: ({ result, span }) => {
span.setAttribute('found', !!result);
},
},
});
Signature
function registerMethodHooks<T>(target: Type<T>, hooks: MethodHooksForType<T>): MethodHookConfig<T>
Parameters
target
parameter
Type<T>
hooks
parameter
MethodHooksForType<T>