triggers

package
v2.21.1 Latest Latest
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 Go to latest Published: Apr 23, 2022 License: Apache-2.0 Imports: 15 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewTriggerFunction_Override 

func NewTriggerFunction_Override(t TriggerFunction, scope constructs.Construct, id *string, props *TriggerFunctionProps)

func NewTrigger_Override 

func NewTrigger_Override(t Trigger, scope constructs.Construct, id *string, props *TriggerProps)

func TriggerFunction_ClassifyVersionProperty 

func TriggerFunction_ClassifyVersionProperty(propertyName *string, locked *bool)

Record whether specific properties in the `AWS::Lambda::Function` resource should also be associated to the Version resource.

See 'currentVersion' section in the module README for more details.

func TriggerFunction_FromFunctionArn 

func TriggerFunction_FromFunctionArn(scope constructs.Construct, id *string, functionArn *string) awslambda.IFunction

Import a lambda function into the CDK using its ARN.

func TriggerFunction_FromFunctionAttributes 

func TriggerFunction_FromFunctionAttributes(scope constructs.Construct, id *string, attrs *awslambda.FunctionAttributes) awslambda.IFunction

Creates a Lambda function object which represents a function not defined within this stack.

func TriggerFunction_FromFunctionName 

func TriggerFunction_FromFunctionName(scope constructs.Construct, id *string, functionName *string) awslambda.IFunction

Import a lambda function into the CDK using its name.

func TriggerFunction_IsConstruct 

func TriggerFunction_IsConstruct(x interface{}) *bool

Checks if `x` is a construct.

Returns: true if `x` is an object created from a class which extends `Construct`. Deprecated: use `x instanceof Construct` instead.

func TriggerFunction_IsResource 

func TriggerFunction_IsResource(construct constructs.IConstruct) *bool

Check whether the given construct is a Resource.

func TriggerFunction_MetricAll 

func TriggerFunction_MetricAll(metricName *string, props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Return the given named metric for this Lambda.

func TriggerFunction_MetricAllConcurrentExecutions 

func TriggerFunction_MetricAllConcurrentExecutions(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the number of concurrent executions across all Lambdas.

func TriggerFunction_MetricAllDuration 

func TriggerFunction_MetricAllDuration(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the Duration executing all Lambdas.

func TriggerFunction_MetricAllErrors 

func TriggerFunction_MetricAllErrors(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the number of Errors executing all Lambdas.

func TriggerFunction_MetricAllInvocations 

func TriggerFunction_MetricAllInvocations(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the number of invocations of all Lambdas.

func TriggerFunction_MetricAllThrottles 

func TriggerFunction_MetricAllThrottles(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the number of throttled invocations of all Lambdas.

func TriggerFunction_MetricAllUnreservedConcurrentExecutions 

func TriggerFunction_MetricAllUnreservedConcurrentExecutions(props *awscloudwatch.MetricOptions) awscloudwatch.Metric

Metric for the number of unreserved concurrent executions across all Lambdas.

func Trigger_IsConstruct 

func Trigger_IsConstruct(x interface{}) *bool

Checks if `x` is a construct.

Returns: true if `x` is an object created from a class which extends `Construct`. Deprecated: use `x instanceof Construct` instead.

Types

type ITrigger 

type ITrigger interface {
	constructs.IConstruct
	// Adds trigger dependencies.
	//
	// Execute this trigger only after these construct
	// scopes have been provisioned.
	ExecuteAfter(scopes ...constructs.Construct)
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	ExecuteBefore(scopes ...constructs.Construct)
}

Interface for triggers.

type Trigger 

type Trigger interface {
	constructs.Construct
	ITrigger
	// The tree node.
	Node() constructs.Node
	// Adds trigger dependencies.
	//
	// Execute this trigger only after these construct
	// scopes have been provisioned.
	ExecuteAfter(scopes ...constructs.Construct)
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	ExecuteBefore(scopes ...constructs.Construct)
	// Returns a string representation of this construct.
	ToString() *string
}

Triggers an AWS Lambda function during deployment.

Example: 

import awscdk "github.com/aws/aws-cdk-go/awscdk"import lambda "github.com/aws/aws-cdk-go/awscdk/aws_lambda"import awscdk "github.com/aws/aws-cdk-go/awscdk"import triggers "github.com/aws/aws-cdk-go/awscdk/triggers"import constructs "github.com/aws/constructs-go/constructs"

var construct construct
var function_ function
trigger := triggers.NewTrigger(this, jsii.String("MyTrigger"), &triggerProps{
	handler: function_,

	// the properties below are optional
	executeAfter: []*construct{
		construct,
	},
	executeBefore: []*construct{
		construct,
	},
	executeOnHandlerChange: jsii.Boolean(false),
})

func NewTrigger 

func NewTrigger(scope constructs.Construct, id *string, props *TriggerProps) Trigger

type TriggerFunction 

type TriggerFunction interface {
	awslambda.Function
	ITrigger
	// The architecture of this Lambda Function (this is an optional attribute and defaults to X86_64).
	Architecture() awslambda.Architecture
	// Whether the addPermission() call adds any permissions.
	//
	// True for new Lambdas, false for version $LATEST and imported Lambdas
	// from different accounts.
	CanCreatePermissions() *bool
	// Access the Connections object.
	//
	// Will fail if not a VPC-enabled Lambda Function.
	Connections() awsec2.Connections
	// Returns a `lambda.Version` which represents the current version of this Lambda function. A new version will be created every time the function's configuration changes.
	//
	// You can specify options for this version using the `currentVersionOptions`
	// prop when initializing the `lambda.Function`.
	CurrentVersion() awslambda.Version
	// The DLQ (as queue) associated with this Lambda Function (this is an optional attribute).
	DeadLetterQueue() awssqs.IQueue
	// The DLQ (as topic) associated with this Lambda Function (this is an optional attribute).
	DeadLetterTopic() awssns.ITopic
	// The environment this resource belongs to.
	//
	// For resources that are created and managed by the CDK
	// (generally, those created by creating new class instances like Role, Bucket, etc.),
	// this is always the same as the environment of the stack they belong to;
	// however, for imported resources
	// (those obtained from static methods like fromRoleArn, fromBucketName, etc.),
	// that might be different than the stack they were imported into.
	Env() *awscdk.ResourceEnvironment
	// ARN of this function.
	FunctionArn() *string
	// Name of this function.
	FunctionName() *string
	// The principal this Lambda Function is running as.
	GrantPrincipal() awsiam.IPrincipal
	// Whether or not this Lambda function was bound to a VPC.
	//
	// If this is is `false`, trying to access the `connections` object will fail.
	IsBoundToVpc() *bool
	// The `$LATEST` version of this function.
	//
	// Note that this is reference to a non-specific AWS Lambda version, which
	// means the function this version refers to can return different results in
	// different invocations.
	//
	// To obtain a reference to an explicit version which references the current
	// function configuration, use `lambdaFunction.currentVersion` instead.
	LatestVersion() awslambda.IVersion
	// The LogGroup where the Lambda function's logs are made available.
	//
	// If either `logRetention` is set or this property is called, a CloudFormation custom resource is added to the stack that
	// pre-creates the log group as part of the stack deployment, if it already doesn't exist, and sets the correct log retention
	// period (never expire, by default).
	//
	// Further, if the log group already exists and the `logRetention` is not set, the custom resource will reset the log retention
	// to never expire even if it was configured with a different value.
	LogGroup() awslogs.ILogGroup
	// The tree node.
	Node() constructs.Node
	// The construct node where permissions are attached.
	PermissionsNode() constructs.Node
	// Returns a string-encoded token that resolves to the physical name that should be passed to the CloudFormation resource.
	//
	// This value will resolve to one of the following:
	// - a concrete value (e.g. `"my-awesome-bucket"`)
	// - `undefined`, when a name should be generated by CloudFormation
	// - a concrete name generated automatically during synthesis, in
	//    cross-environment scenarios.
	PhysicalName() *string
	// The ARN(s) to put into the resource field of the generated IAM policy for grantInvoke().
	ResourceArnsForGrantInvoke() *[]*string
	// Execution role associated with this function.
	Role() awsiam.IRole
	// The runtime configured for this lambda.
	Runtime() awslambda.Runtime
	// The stack in which this resource is defined.
	Stack() awscdk.Stack
	// The timeout configured for this lambda.
	Timeout() awscdk.Duration
	// The underlying trigger resource.
	Trigger() Trigger
	// Adds an environment variable to this Lambda function.
	//
	// If this is a ref to a Lambda function, this operation results in a no-op.
	AddEnvironment(key *string, value *string, options *awslambda.EnvironmentOptions) awslambda.Function
	// Adds an event source to this function.
	//
	// Event sources are implemented in the @aws-cdk/aws-lambda-event-sources module.
	//
	// The following example adds an SQS Queue as an event source:
	// “`
	// import { SqsEventSource } from '@aws-cdk/aws-lambda-event-sources';
	// myFunction.addEventSource(new SqsEventSource(myQueue));
	// “`.
	AddEventSource(source awslambda.IEventSource)
	// Adds an event source that maps to this AWS Lambda function.
	AddEventSourceMapping(id *string, options *awslambda.EventSourceMappingOptions) awslambda.EventSourceMapping
	// Adds a url to this lambda function.
	AddFunctionUrl(options *awslambda.FunctionUrlOptions) awslambda.FunctionUrl
	// Adds one or more Lambda Layers to this Lambda function.
	AddLayers(layers ...awslambda.ILayerVersion)
	// Adds a permission to the Lambda resource policy.
	// See: Permission for details.
	//
	AddPermission(id *string, permission *awslambda.Permission)
	// Adds a statement to the IAM role assumed by the instance.
	AddToRolePolicy(statement awsiam.PolicyStatement)
	// Apply the given removal policy to this resource.
	//
	// The Removal Policy controls what happens to this resource when it stops
	// being managed by CloudFormation, either because you've removed it from the
	// CDK application or because you've made a change that requires the resource
	// to be replaced.
	//
	// The resource can be deleted (`RemovalPolicy.DESTROY`), or left in your AWS
	// account for data recovery and cleanup later (`RemovalPolicy.RETAIN`).
	ApplyRemovalPolicy(policy awscdk.RemovalPolicy)
	// Configures options for asynchronous invocation.
	ConfigureAsyncInvoke(options *awslambda.EventInvokeConfigOptions)
	// A warning will be added to functions under the following conditions: - permissions that include `lambda:InvokeFunction` are added to the unqualified function.
	//
	// - function.currentVersion is invoked before or after the permission is created.
	//
	// This applies only to permissions on Lambda functions, not versions or aliases.
	// This function is overridden as a noOp for QualifiedFunctionBase.
	ConsiderWarningOnInvokeFunctionPermissions(scope constructs.Construct, action *string)
	// Adds trigger dependencies.
	//
	// Execute this trigger only after these construct
	// scopes have been provisioned.
	ExecuteAfter(scopes ...constructs.Construct)
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	ExecuteBefore(scopes ...constructs.Construct)
	GeneratePhysicalName() *string
	// Returns an environment-sensitive token that should be used for the resource's "ARN" attribute (e.g. `bucket.bucketArn`).
	//
	// Normally, this token will resolve to `arnAttr`, but if the resource is
	// referenced across environments, `arnComponents` will be used to synthesize
	// a concrete ARN with the resource's physical name. Make sure to reference
	// `this.physicalName` in `arnComponents`.
	GetResourceArnAttribute(arnAttr *string, arnComponents *awscdk.ArnComponents) *string
	// Returns an environment-sensitive token that should be used for the resource's "name" attribute (e.g. `bucket.bucketName`).
	//
	// Normally, this token will resolve to `nameAttr`, but if the resource is
	// referenced across environments, it will be resolved to `this.physicalName`,
	// which will be a concrete name.
	GetResourceNameAttribute(nameAttr *string) *string
	// Grant the given identity permissions to invoke this Lambda.
	GrantInvoke(grantee awsiam.IGrantable) awsiam.Grant
	// Grant the given identity permissions to invoke this Lambda Function URL.
	GrantInvokeUrl(grantee awsiam.IGrantable) awsiam.Grant
	// Return the given named metric for this Function.
	Metric(metricName *string, props *awscloudwatch.MetricOptions) awscloudwatch.Metric
	// How long execution of this Lambda takes.
	//
	// Average over 5 minutes.
	MetricDuration(props *awscloudwatch.MetricOptions) awscloudwatch.Metric
	// How many invocations of this Lambda fail.
	//
	// Sum over 5 minutes.
	MetricErrors(props *awscloudwatch.MetricOptions) awscloudwatch.Metric
	// How often this Lambda is invoked.
	//
	// Sum over 5 minutes.
	MetricInvocations(props *awscloudwatch.MetricOptions) awscloudwatch.Metric
	// How often this Lambda is throttled.
	//
	// Sum over 5 minutes.
	MetricThrottles(props *awscloudwatch.MetricOptions) awscloudwatch.Metric
	// Returns a string representation of this construct.
	ToString() *string
	WarnInvokeFunctionPermissions(scope constructs.Construct)
}

Invokes an AWS Lambda function during deployment.

Example: 

// Example automatically generated from non-compiling source. May contain errors.
import lambda "github.com/aws/aws-cdk-go/awscdk"import triggers "github.com/aws/aws-cdk-go/awscdk"import awscdk "github.com/aws/aws-cdk-go/awscdk"type Stack awscdk.Stack

var stack stack

triggers.NewTriggerFunction(stack, jsii.String("MyTrigger"), &triggerFunctionProps{
	runtime: lambda.runtime_NODEJS_12_X(),
	handler: jsii.String("index.handler"),
	code: lambda.code.fromAsset(jsii.String(__dirname + "/my-trigger")),
})

func NewTriggerFunction 

func NewTriggerFunction(scope constructs.Construct, id *string, props *TriggerFunctionProps) TriggerFunction

type TriggerFunctionProps 

type TriggerFunctionProps struct {
	// The maximum age of a request that Lambda sends to a function for processing.
	//
	// Minimum: 60 seconds
	// Maximum: 6 hours.
	MaxEventAge awscdk.Duration `json:"maxEventAge" yaml:"maxEventAge"`
	// The destination for failed invocations.
	OnFailure awslambda.IDestination `json:"onFailure" yaml:"onFailure"`
	// The destination for successful invocations.
	OnSuccess awslambda.IDestination `json:"onSuccess" yaml:"onSuccess"`
	// The maximum number of times to retry when the function returns an error.
	//
	// Minimum: 0
	// Maximum: 2.
	RetryAttempts *float64 `json:"retryAttempts" yaml:"retryAttempts"`
	// Whether to allow the Lambda to send all network traffic.
	//
	// If set to false, you must individually add traffic rules to allow the
	// Lambda to connect to network targets.
	AllowAllOutbound *bool `json:"allowAllOutbound" yaml:"allowAllOutbound"`
	// Lambda Functions in a public subnet can NOT access the internet.
	//
	// Use this property to acknowledge this limitation and still place the function in a public subnet.
	// See: https://stackoverflow.com/questions/52992085/why-cant-an-aws-lambda-function-inside-a-public-subnet-in-a-vpc-connect-to-the/52994841#52994841
	//
	AllowPublicSubnet *bool `json:"allowPublicSubnet" yaml:"allowPublicSubnet"`
	// The system architectures compatible with this lambda function.
	Architecture awslambda.Architecture `json:"architecture" yaml:"architecture"`
	// Code signing config associated with this function.
	CodeSigningConfig awslambda.ICodeSigningConfig `json:"codeSigningConfig" yaml:"codeSigningConfig"`
	// Options for the `lambda.Version` resource automatically created by the `fn.currentVersion` method.
	CurrentVersionOptions *awslambda.VersionOptions `json:"currentVersionOptions" yaml:"currentVersionOptions"`
	// The SQS queue to use if DLQ is enabled.
	//
	// If SNS topic is desired, specify `deadLetterTopic` property instead.
	DeadLetterQueue awssqs.IQueue `json:"deadLetterQueue" yaml:"deadLetterQueue"`
	// Enabled DLQ.
	//
	// If `deadLetterQueue` is undefined,
	// an SQS queue with default options will be defined for your Function.
	DeadLetterQueueEnabled *bool `json:"deadLetterQueueEnabled" yaml:"deadLetterQueueEnabled"`
	// The SNS topic to use as a DLQ.
	//
	// Note that if `deadLetterQueueEnabled` is set to `true`, an SQS queue will be created
	// rather than an SNS topic. Using an SNS topic as a DLQ requires this property to be set explicitly.
	DeadLetterTopic awssns.ITopic `json:"deadLetterTopic" yaml:"deadLetterTopic"`
	// A description of the function.
	Description *string `json:"description" yaml:"description"`
	// Key-value pairs that Lambda caches and makes available for your Lambda functions.
	//
	// Use environment variables to apply configuration changes, such
	// as test and production environment configurations, without changing your
	// Lambda function source code.
	Environment *map[string]*string `json:"environment" yaml:"environment"`
	// The AWS KMS key that's used to encrypt your function's environment variables.
	EnvironmentEncryption awskms.IKey `json:"environmentEncryption" yaml:"environmentEncryption"`
	// The size of the function’s /tmp directory in MiB.
	EphemeralStorageSize awscdk.Size `json:"ephemeralStorageSize" yaml:"ephemeralStorageSize"`
	// Event sources for this function.
	//
	// You can also add event sources using `addEventSource`.
	Events *[]awslambda.IEventSource `json:"events" yaml:"events"`
	// The filesystem configuration for the lambda function.
	Filesystem awslambda.FileSystem `json:"filesystem" yaml:"filesystem"`
	// A name for the function.
	FunctionName *string `json:"functionName" yaml:"functionName"`
	// Initial policy statements to add to the created Lambda Role.
	//
	// You can call `addToRolePolicy` to the created lambda to add statements post creation.
	InitialPolicy *[]awsiam.PolicyStatement `json:"initialPolicy" yaml:"initialPolicy"`
	// Specify the version of CloudWatch Lambda insights to use for monitoring.
	// See: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Lambda-Insights-Getting-Started-docker.html
	//
	InsightsVersion awslambda.LambdaInsightsVersion `json:"insightsVersion" yaml:"insightsVersion"`
	// A list of layers to add to the function's execution environment.
	//
	// You can configure your Lambda function to pull in
	// additional code during initialization in the form of layers. Layers are packages of libraries or other dependencies
	// that can be used by multiple functions.
	Layers *[]awslambda.ILayerVersion `json:"layers" yaml:"layers"`
	// The number of days log events are kept in CloudWatch Logs.
	//
	// When updating
	// this property, unsetting it doesn't remove the log retention policy. To
	// remove the retention policy, set the value to `INFINITE`.
	LogRetention awslogs.RetentionDays `json:"logRetention" yaml:"logRetention"`
	// When log retention is specified, a custom resource attempts to create the CloudWatch log group.
	//
	// These options control the retry policy when interacting with CloudWatch APIs.
	LogRetentionRetryOptions *awslambda.LogRetentionRetryOptions `json:"logRetentionRetryOptions" yaml:"logRetentionRetryOptions"`
	// The IAM role for the Lambda function associated with the custom resource that sets the retention policy.
	LogRetentionRole awsiam.IRole `json:"logRetentionRole" yaml:"logRetentionRole"`
	// The amount of memory, in MB, that is allocated to your Lambda function.
	//
	// Lambda uses this value to proportionally allocate the amount of CPU
	// power. For more information, see Resource Model in the AWS Lambda
	// Developer Guide.
	MemorySize *float64 `json:"memorySize" yaml:"memorySize"`
	// Enable profiling.
	// See: https://docs.aws.amazon.com/codeguru/latest/profiler-ug/setting-up-lambda.html
	//
	Profiling *bool `json:"profiling" yaml:"profiling"`
	// Profiling Group.
	// See: https://docs.aws.amazon.com/codeguru/latest/profiler-ug/setting-up-lambda.html
	//
	ProfilingGroup awscodeguruprofiler.IProfilingGroup `json:"profilingGroup" yaml:"profilingGroup"`
	// The maximum of concurrent executions you want to reserve for the function.
	// See: https://docs.aws.amazon.com/lambda/latest/dg/concurrent-executions.html
	//
	ReservedConcurrentExecutions *float64 `json:"reservedConcurrentExecutions" yaml:"reservedConcurrentExecutions"`
	// Lambda execution role.
	//
	// This is the role that will be assumed by the function upon execution.
	// It controls the permissions that the function will have. The Role must
	// be assumable by the 'lambda.amazonaws.com' service principal.
	//
	// The default Role automatically has permissions granted for Lambda execution. If you
	// provide a Role, you must add the relevant AWS managed policies yourself.
	//
	// The relevant managed policies are "service-role/AWSLambdaBasicExecutionRole" and
	// "service-role/AWSLambdaVPCAccessExecutionRole".
	Role awsiam.IRole `json:"role" yaml:"role"`
	// The list of security groups to associate with the Lambda's network interfaces.
	//
	// Only used if 'vpc' is supplied.
	SecurityGroups *[]awsec2.ISecurityGroup `json:"securityGroups" yaml:"securityGroups"`
	// The function execution time (in seconds) after which Lambda terminates the function.
	//
	// Because the execution time affects cost, set this value
	// based on the function's expected execution time.
	Timeout awscdk.Duration `json:"timeout" yaml:"timeout"`
	// Enable AWS X-Ray Tracing for Lambda Function.
	Tracing awslambda.Tracing `json:"tracing" yaml:"tracing"`
	// VPC network to place Lambda network interfaces.
	//
	// Specify this if the Lambda function needs to access resources in a VPC.
	Vpc awsec2.IVpc `json:"vpc" yaml:"vpc"`
	// Where to place the network interfaces within the VPC.
	//
	// Only used if 'vpc' is supplied. Note: internet access for Lambdas
	// requires a NAT gateway, so picking Public subnets is not allowed.
	VpcSubnets *awsec2.SubnetSelection `json:"vpcSubnets" yaml:"vpcSubnets"`
	// The source code of your Lambda function.
	//
	// You can point to a file in an
	// Amazon Simple Storage Service (Amazon S3) bucket or specify your source
	// code as inline text.
	Code awslambda.Code `json:"code" yaml:"code"`
	// The name of the method within your code that Lambda calls to execute your function.
	//
	// The format includes the file name. It can also include
	// namespaces and other qualifiers, depending on the runtime.
	// For more information, see https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-features.html#gettingstarted-features-programmingmodel.
	//
	// Use `Handler.FROM_IMAGE` when defining a function from a Docker image.
	//
	// NOTE: If you specify your source code as inline text by specifying the
	// ZipFile property within the Code property, specify index.function_name as
	// the handler.
	Handler *string `json:"handler" yaml:"handler"`
	// The runtime environment for the Lambda function that you are uploading.
	//
	// For valid values, see the Runtime property in the AWS Lambda Developer
	// Guide.
	//
	// Use `Runtime.FROM_IMAGE` when when defining a function from a Docker image.
	Runtime awslambda.Runtime `json:"runtime" yaml:"runtime"`
	// Adds trigger dependencies. Execute this trigger only after these construct scopes have been provisioned.
	//
	// You can also use `trigger.executeAfter()` to add additional dependencies.
	ExecuteAfter *[]constructs.Construct `json:"executeAfter" yaml:"executeAfter"`
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	//
	// You can also use `trigger.executeBefore()` to add additional dependants.
	ExecuteBefore *[]constructs.Construct `json:"executeBefore" yaml:"executeBefore"`
	// Re-executes the trigger every time the handler changes.
	//
	// This implies that the trigger is associated with the `currentVersion` of
	// the handler, which gets recreated every time the handler or its
	// configuration is updated.
	ExecuteOnHandlerChange *bool `json:"executeOnHandlerChange" yaml:"executeOnHandlerChange"`
}

Props for `InvokeFunction`.

Example: 

// Example automatically generated from non-compiling source. May contain errors.
import lambda "github.com/aws/aws-cdk-go/awscdk"import triggers "github.com/aws/aws-cdk-go/awscdk"import awscdk "github.com/aws/aws-cdk-go/awscdk"type Stack awscdk.Stack

var stack stack

triggers.NewTriggerFunction(stack, jsii.String("MyTrigger"), &triggerFunctionProps{
	runtime: lambda.runtime_NODEJS_12_X(),
	handler: jsii.String("index.handler"),
	code: lambda.code.fromAsset(jsii.String(__dirname + "/my-trigger")),
})

type TriggerInvalidation 

type TriggerInvalidation string

Determines. 

const (
	// The trigger will be executed every time the handler (or its configuration) changes.
	//
	// This is implemented by associated the trigger with the `currentVersion`
	// of the AWS Lambda function, which gets recreated every time the handler changes.
	TriggerInvalidation_HANDLER_CHANGE TriggerInvalidation = "HANDLER_CHANGE"
)

type TriggerOptions 

type TriggerOptions struct {
	// Adds trigger dependencies. Execute this trigger only after these construct scopes have been provisioned.
	//
	// You can also use `trigger.executeAfter()` to add additional dependencies.
	ExecuteAfter *[]constructs.Construct `json:"executeAfter" yaml:"executeAfter"`
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	//
	// You can also use `trigger.executeBefore()` to add additional dependants.
	ExecuteBefore *[]constructs.Construct `json:"executeBefore" yaml:"executeBefore"`
	// Re-executes the trigger every time the handler changes.
	//
	// This implies that the trigger is associated with the `currentVersion` of
	// the handler, which gets recreated every time the handler or its
	// configuration is updated.
	ExecuteOnHandlerChange *bool `json:"executeOnHandlerChange" yaml:"executeOnHandlerChange"`
}

Options for `Trigger`.

Example: 

import awscdk "github.com/aws/aws-cdk-go/awscdk"import triggers "github.com/aws/aws-cdk-go/awscdk/triggers"import constructs "github.com/aws/constructs-go/constructs"

var construct construct
triggerOptions := &triggerOptions{
	executeAfter: []*construct{
		construct,
	},
	executeBefore: []*construct{
		construct,
	},
	executeOnHandlerChange: jsii.Boolean(false),
}

type TriggerProps 

type TriggerProps struct {
	// Adds trigger dependencies. Execute this trigger only after these construct scopes have been provisioned.
	//
	// You can also use `trigger.executeAfter()` to add additional dependencies.
	ExecuteAfter *[]constructs.Construct `json:"executeAfter" yaml:"executeAfter"`
	// Adds this trigger as a dependency on other constructs.
	//
	// This means that this
	// trigger will get executed *before* the given construct(s).
	//
	// You can also use `trigger.executeBefore()` to add additional dependants.
	ExecuteBefore *[]constructs.Construct `json:"executeBefore" yaml:"executeBefore"`
	// Re-executes the trigger every time the handler changes.
	//
	// This implies that the trigger is associated with the `currentVersion` of
	// the handler, which gets recreated every time the handler or its
	// configuration is updated.
	ExecuteOnHandlerChange *bool `json:"executeOnHandlerChange" yaml:"executeOnHandlerChange"`
	// The AWS Lambda function of the handler to execute.
	Handler awslambda.Function `json:"handler" yaml:"handler"`
}

Props for `Trigger`.

Example: 

import awscdk "github.com/aws/aws-cdk-go/awscdk"import lambda "github.com/aws/aws-cdk-go/awscdk/aws_lambda"import awscdk "github.com/aws/aws-cdk-go/awscdk"import triggers "github.com/aws/aws-cdk-go/awscdk/triggers"import constructs "github.com/aws/constructs-go/constructs"

var construct construct
var function_ function
triggerProps := &triggerProps{
	handler: function_,

	// the properties below are optional
	executeAfter: []*construct{
		construct,
	},
	executeBefore: []*construct{
		construct,
	},
	executeOnHandlerChange: jsii.Boolean(false),
}

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