WebSocketApi

class aws_cdk.aws_apigatewayv2.WebSocketApi(scope, id, *, api_key_selection_expression=None, api_name=None, connect_route_options=None, default_route_options=None, description=None, disconnect_route_options=None, route_selection_expression=None)

Bases: aws_cdk.core.Resource

(experimental) Create a new API Gateway WebSocket API endpoint.

Stability

experimental

ExampleMetadata

infused

Resource

AWS::ApiGatewayV2::Api

Example:

from aws_cdk.aws_apigatewayv2_integrations import WebSocketLambdaIntegration

# message_handler: lambda.Function

web_socket_api = apigwv2.WebSocketApi(self, "mywsapi")
web_socket_api.add_route("sendmessage",
    integration=WebSocketLambdaIntegration("SendMessageIntegration", message_handler)
)
Parameters

  • scope (Construct) –

  • id (str) –

  • api_key_selection_expression (Optional[WebSocketApiKeySelectionExpression]) – (experimental) An API key selection expression. Providing this option will require an API Key be provided to access the API. Default: - Key is not required to access these APIs

  • api_name (Optional[str]) – (experimental) Name for the WebSocket API resource. Default: - id of the WebSocketApi construct.

  • connect_route_options (Optional[WebSocketRouteOptions]) – (experimental) Options to configure a ‘$connect’ route. Default: - no ‘$connect’ route configured

  • default_route_options (Optional[WebSocketRouteOptions]) – (experimental) Options to configure a ‘$default’ route. Default: - no ‘$default’ route configured

  • description (Optional[str]) – (experimental) The description of the API. Default: - none

  • disconnect_route_options (Optional[WebSocketRouteOptions]) – (experimental) Options to configure a ‘$disconnect’ route. Default: - no ‘$disconnect’ route configured

  • route_selection_expression (Optional[str]) – (experimental) The route selection expression for the API. Default: ‘$request.body.action’

Stability

experimental

Methods

add_route(route_key, *, integration, authorizer=None)

(experimental) Add a new route.

Parameters

  • route_key (str) –

  • integration (WebSocketRouteIntegration) – (experimental) The integration to be configured on this route.

  • authorizer (Optional[IWebSocketRouteAuthorizer]) – (experimental) The authorize to this route. You can only set authorizer to a $connect route. Default: - No Authorizer

Stability

experimental

Return type

WebSocketRoute

apply_removal_policy(policy)

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).

Parameters

policy (RemovalPolicy) –

Return type

None

grant_manage_connections(identity)

(experimental) Grant access to the API Gateway management API for this WebSocket API to an IAM principal (Role/Group/User).

Parameters

identity (IGrantable) – The principal.

Stability

experimental

Return type

Grant

metric(metric_name, *, account=None, color=None, dimensions=None, dimensions_map=None, label=None, period=None, region=None, statistic=None, unit=None)

(experimental) Return the given named metric for this Api Gateway.

Parameters

  • metric_name (str) –

  • account (Optional[str]) – Account which this metric comes from. Default: - Deployment account.

  • color (Optional[str]) – The hex color code, prefixed with ‘#’ (e.g. ‘#00ff00’), to use when this metric is rendered on a graph. The Color class has a set of standard colors that can be used here. Default: - Automatic color

  • dimensions (Optional[Mapping[str, Any]]) – (deprecated) Dimensions of the metric. Default: - No dimensions.

  • dimensions_map (Optional[Mapping[str, str]]) – Dimensions of the metric. Default: - No dimensions.

  • label (Optional[str]) – Label for this metric when added to a Graph in a Dashboard. You can use dynamic labels to show summary information about the entire displayed time series in the legend. For example, if you use:: [max: ${MAX}] MyMetric As the metric label, the maximum value in the visible range will be shown next to the time series name in the graph’s legend. Default: - No label

  • period (Optional[Duration]) – The period over which the specified statistic is applied. Default: Duration.minutes(5)

  • region (Optional[str]) – Region which this metric comes from. Default: - Deployment region.

  • statistic (Optional[str]) – What function to use for aggregating. Can be one of the following: - “Minimum” | “min” - “Maximum” | “max” - “Average” | “avg” - “Sum” | “sum” - “SampleCount | “n” - “pNN.NN” Default: Average

  • unit (Optional[Unit]) – Unit used to filter the metric stream. Only refer to datums emitted to the metric stream with the given unit and ignore all others. Only useful when datums are being emitted to the same metric stream under different units. The default is to use all matric datums in the stream, regardless of unit, which is recommended in nearly all cases. CloudWatch does not honor this property for graphs. Default: - All metric datums in the given metric stream

Stability

experimental

Return type

Metric

to_string()

Returns a string representation of this construct.

Return type

str

Attributes

api_endpoint

(experimental) The default endpoint for an API.

Stability

experimental

Return type

str

api_id

(experimental) The identifier of this API Gateway API.

Stability

experimental

Return type

str

env

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.

Return type

ResourceEnvironment

node

The construct tree node associated with this construct.

Return type

ConstructNode

stack

The stack in which this resource is defined.

Return type

Stack

web_socket_api_name

(experimental) A human friendly name for this WebSocket API.

Note that this is different from webSocketApiId.

Stability

experimental

Return type

Optional[str]

Static Methods

classmethod from_web_socket_api_attributes(scope, id, *, web_socket_id, api_endpoint=None)

(experimental) Import an existing WebSocket API into this CDK app.

Parameters

  • scope (Construct) –

  • id (str) –

  • web_socket_id (str) – (experimental) The identifier of the WebSocketApi.

  • api_endpoint (Optional[str]) – (experimental) The endpoint URL of the WebSocketApi. Default: - throw san error if apiEndpoint is accessed.

Stability

experimental

Return type

IWebSocketApi

classmethod is_construct(x)

Return whether the given object is a Construct.

Parameters

x (Any) –

Return type

bool

classmethod is_resource(construct)

Check whether the given construct is a Resource.

Parameters

construct (IConstruct) –

Return type

bool