A pattern to create an API Gateway instance which uses path-based routing to route requests to two or more Lambda functions.

This pattern should be used if you need to configure path-based routing to serve different requests with different Lambdas. If you intend to serve all traffic via a single Lambda, use the [[GuApiLambda]] pattern instead.

Example usage:

// Configure lambdas
const lambdaOne = new GuLambdaFunction(this, "lambda-one", {
app: "example-lambda-one",
runtime: Runtime.NODEJS_14_X,
handler: "lambda-one.handler",
fileName: "lambda-one.zip",
const lambdaTwo = new GuLambdaFunction(this, "lambda-two", {
app: "example-lambda-two",
runtime: Runtime.NODEJS_14_X,
handler: "lambda-two.handler",
fileName: "lambda-two.zip",

// Wire up the API
new GuApiGatewayWithLambdaByPath(this, {
app: "example-api-gateway-instance",
targets: [
path: "lambda-one",
httpMethod: "GET",
lambda: lambdaOne,
path: "lambda-two",
httpMethod: "GET",
lambda: lambdaTwo,
// Create an alarm
monitoringConfiguration: {
snsTopicName: "my-topic-for-cloudwatch-alerts",
http5xxAlarm: {
tolerated5xxPercentage: 1,

For all API configuration options, see [[GuApiGatewayWithLambdaByPathProps]].

For details on configuring the individual Lambda functions, see [[GuLambdaFunction]].


  • Construct
    • GuApiGatewayWithLambdaByPath






api: RestApi
node: Node

The tree node.


  • Returns a string representation of this construct.

    Returns string

  • Checks if x is a construct.

    Use this method instead of instanceof to properly detect Construct instances, even when the construct library is symlinked.

    Explanation: in JavaScript, multiple copies of the constructs library on disk are seen as independent, completely different libraries. As a consequence, the class Construct in each copy of the constructs library is seen as a different class, and an instance of one class will not test as instanceof the other class. npm install will not create installations like this, but users may manually symlink construct libraries together or use a monorepo tool: in those cases, multiple copies of the constructs library can be accidentally installed, and instanceof will behave unpredictably. It is safest to avoid using instanceof, and using this type-testing method instead.


    true if x is an object created from a class which extends Construct.


    • x: any

      Any object

    Returns x is Construct

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