--- lang: en title: 'API docs: context.invocationcontext' keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI sidebar: lb4_sidebar editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/context permalink: /doc/en/lb4/apidocs.context.invocationcontext.html --- [Home](./index.md) > [@loopback/context](./context.md) > [InvocationContext](./context.invocationcontext.md) ## InvocationContext class InvocationContext represents the context to invoke interceptors for a method. The context can be used to access metadata about the invocation as well as other dependencies. **Signature:** ```typescript export declare class InvocationContext extends Context ``` **Extends:** [Context](./context.context.md) ## Constructors
Constructor Modifiers Description
[(constructor)(parent, target, methodName, args, source)](./context.invocationcontext._constructor_.md) Construct a new instance of `InvocationContext`
## Properties
Property Modifiers Type Description
[args](./context.invocationcontext.args.md) `readonly` [InvocationArgs](./context.invocationargs.md)
[description](./context.invocationcontext.description.md) `readonly` string Description of the invocation
[methodName](./context.invocationcontext.methodname.md) `readonly` string
[source?](./context.invocationcontext.source.md) `readonly` [InvocationSource](./context.invocationsource.md)<unknown> \| undefined _(Optional)_
[target](./context.invocationcontext.target.md) `readonly` object
[targetClass](./context.invocationcontext.targetclass.md) `readonly` Function The target class, such as `OrderController`
[targetName](./context.invocationcontext.targetname.md) `readonly` string The target name, such as `OrderController.prototype.cancelOrder`
## Methods
Method Modifiers Description
[assertMethodExists()](./context.invocationcontext.assertmethodexists.md) Assert the method exists on the target. An error will be thrown if otherwise.
[invokeTargetMethod(options)](./context.invocationcontext.invoketargetmethod.md) Invoke the target method with the given context
[toString()](./context.invocationcontext.tostring.md)