CfnChannelFlow

class aws_cdk.aws_chime.CfnChannelFlow(scope, id, *, app_instance_arn, name, processors, tags=None)

Bases: CfnResource

Creates a channel flow in the Amazon Chime SDK Messaging service.

A channel flow is a container for processors (Lambda functions) that perform actions on chat messages.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-chime-channelflow.html

CloudformationResource:

AWS::Chime::ChannelFlow

ExampleMetadata:

fixture=_generated

Example:

from aws_cdk import CfnTag
# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_chime as chime

cfn_channel_flow = chime.CfnChannelFlow(self, "MyCfnChannelFlow",
    app_instance_arn="appInstanceArn",
    name="name",
    processors=[chime.CfnChannelFlow.ProcessorProperty(
        configuration=chime.CfnChannelFlow.ProcessorConfigurationProperty(
            lambda_=chime.CfnChannelFlow.LambdaConfigurationProperty(
                invocation_type="invocationType",
                resource_arn="resourceArn"
            )
        ),
        execution_order=123,
        fallback_action="fallbackAction",
        name="name"
    )],

    # the properties below are optional
    tags=[CfnTag(
        key="key",
        value="value"
    )]
)

Create a new AWS::Chime::ChannelFlow.

Parameters:
  • scope (Construct) – Scope in which this resource is defined.

  • id (str) – Construct identifier for this resource (unique in its scope).

  • app_instance_arn (str) – The ARN of the app instance.

  • name (str) – The name of the channel flow.

  • processors (Union[IResolvable, Sequence[Union[IResolvable, ProcessorProperty, Dict[str, Any]]]]) – Information about the processor Lambda functions.

  • tags (Optional[Sequence[Union[CfnTag, Dict[str, Any]]]]) – The tags for the channel flow.

Methods

add_deletion_override(path)

Syntactic sugar for addOverride(path, undefined).

Parameters:

path (str) – The path of the value to delete.

Return type:

None

add_dependency(target)

(deprecated) Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

This method has been renamed to addResourceDependency to more clearly set it apart from construct.node.addDependency. See the documentation of that function for more details.

Parameters:

target (CfnResource)

Deprecated:

Use addResourceDependency instead.

Stability:

deprecated

Return type:

None

add_depends_on(target)

(deprecated) Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

This method has been renamed to addResourceDependency, which makes it more clear that this method operates at a different level from the construct-level construct.node.addDependency() mechanism.

Parameters:

target (CfnResource)

Deprecated:

Use addResourceDependency instead.

Stability:

deprecated

Return type:

None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters:
  • key (str)

  • value (Any)

See:

Return type:

None

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

add_override(path, value)

Adds an override to the synthesized CloudFormation resource.

To add a property override, either use addPropertyOverride or prefix path with “Properties.” (i.e. Properties.TopicName).

If the override is nested, separate each nested level using a dot (.) in the path parameter. If there is an array as part of the nesting, specify the index in the path.

To include a literal . in the property name, prefix with a \. In most programming languages you will need to write this as "\\." because the \ itself will need to be escaped.

For example:

cfn_resource.add_override("Properties.GlobalSecondaryIndexes.0.Projection.NonKeyAttributes", ["myattribute"])
cfn_resource.add_override("Properties.GlobalSecondaryIndexes.1.ProjectionType", "INCLUDE")

would add the overrides Example:

"Properties": {
  "GlobalSecondaryIndexes": [
    {
      "Projection": {
        "NonKeyAttributes": [ "myattribute" ]
        ...
      }
      ...
    },
    {
      "ProjectionType": "INCLUDE"
      ...
    },
  ]
  ...
}

The value argument to addOverride will not be processed or translated in any way. Pass raw JSON values in here with the correct capitalization for CloudFormation. If you pass CDK classes or structs, they will be rendered with lowercased key names, and CloudFormation will reject the template.

Parameters:
  • path (str) –

    • The path of the property, you can use dot notation to override values in complex types. Any intermediate keys will be created as needed.

  • value (Any) –

    • The value. Could be primitive or complex.

Return type:

None

add_property_deletion_override(property_path)

Adds an override that deletes the value of a property from the resource definition.

Parameters:

property_path (str) – The path to the property.

Return type:

None

add_property_override(property_path, value)

Adds an override to a resource property.

Syntactic sugar for addOverride("Properties.<...>", value).

Parameters:
  • property_path (str) – The path of the property.

  • value (Any) – The value.

Return type:

None

add_resource_dependency(target, reason=None)

Indicates that this resource depends on another resource and cannot be provisioned unless the other resource has been successfully provisioned.

This can be used for resources across stacks (or nested stack) boundaries and the dependency will automatically be transferred to the relevant scope.

This method only adds dependencies between L1 resources. If you are looking for a generic construct-to-construct dependency mechanism that works for all constructs including L2s, use construct.node.addDependency instead.

Parameters:
Return type:

None

apply_cross_stack_reference_strength(strength)

Sets the cross-stack reference strength for this resource.

When set, any cross-stack reference to this resource will use the specified strength instead of the global default from the consuming stack’s context.

Parameters:

strength (ReferenceStrength) –

  • The reference strength to use for this resource.

Return type:

None

apply_removal_policy(policy=None, *, apply_to_update_replace_policy=None, default=None)

Sets the deletion policy of the resource based on the removal policy specified.

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). In some cases, a snapshot can be taken of the resource prior to deletion (RemovalPolicy.SNAPSHOT). A list of resources that support this policy can be found in the following link:

Parameters:
  • policy (Optional[RemovalPolicy])

  • apply_to_update_replace_policy (Optional[bool]) – Apply the same deletion policy to the resource’s “UpdateReplacePolicy”. Default: true

  • default (Optional[RemovalPolicy]) – The default policy to apply in case the removal policy is not defined. Default: - Default value is resource specific. To determine the default value for a resource, please consult that specific resource’s documentation.

See:

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html#aws-attribute-deletionpolicy-options

Return type:

None

cfn_property_name(cdk_property_name)
Parameters:

cdk_property_name (str)

Return type:

Optional[str]

get_att(attribute_name, type_hint=None)

Returns a token for an runtime attribute of this resource.

Ideally, use generated attribute accessors (e.g. resource.arn), but this can be used for future compatibility in case there is no generated attribute.

Parameters:
  • attribute_name (str) – The name of the attribute.

  • type_hint (Optional[ResolutionTypeHint])

Return type:

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters:

key (str)

See:

Return type:

Any

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/metadata-section-structure.html

Note that this is a different set of metadata from CDK node metadata; this metadata ends up in the stack template under the resource, whereas CDK node metadata ends up in the Cloud Assembly.

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters:

inspector (TreeInspector) – tree inspector to collect and process attributes.

Return type:

None

obtain_dependencies()

Retrieves an array of resources and stacks this resource depends on.

For resources depended on directly, returns the CfnResource object. For dependencies on other stacks, returns the Stack object. The order of the array is not guaranteed.

Return type:

List[Union[Stack, CfnResource]]

override_logical_id(new_logical_id)

Overrides the auto-generated logical ID with a specific ID.

Parameters:

new_logical_id (str) – The new logical ID to use for this stack element.

Return type:

None

remove_dependency(target)

(deprecated) Indicates that this resource no longer depends on another resource.

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

Parameters:

target (CfnResource)

Deprecated:

Use removeResourceDependency instead

Stability:

deprecated

Return type:

None

remove_resource_dependency(target)

Indicates that this resource no longer depends on another resource.

This can be used for resources across stacks (including nested stacks) and the dependency will automatically be removed from the relevant scope.

Parameters:

target (CfnResource)

Return type:

None

replace_dependency(target, new_target)

Replaces one dependency with another.

Parameters:
Return type:

None

to_string()

Returns a string representation of this construct.

Return type:

str

Returns:

a string representation of this resource

with_(*mixins)

Applies one or more mixins to this construct.

Mixins are applied in order. The list of constructs is captured at the start of the call, so constructs added by a mixin will not be visited. Use multiple with() calls if subsequent mixins should apply to added constructs.

Parameters:

mixins (IMixin)

Return type:

IConstruct

Attributes

CFN_RESOURCE_TYPE_NAME = 'AWS::Chime::ChannelFlow'
app_instance_arn

The ARN of the app instance.

attr_app_instance_id

The ID of the app instance, extracted from the channel flow ARN.

CloudformationAttribute:

AppInstanceId

attr_arn

The ARN of the channel flow.

CloudformationAttribute:

Arn

attr_channel_flow_id

The ID of the channel flow, extracted from the channel flow ARN.

CloudformationAttribute:

ChannelFlowId

attr_created_timestamp

The time at which the channel flow was created.

CloudformationAttribute:

CreatedTimestamp

attr_last_updated_timestamp

The time at which the channel flow was last updated.

CloudformationAttribute:

LastUpdatedTimestamp

cdk_tag_manager

Tag Manager which manages the tags for this resource.

cfn_options

Options for this resource, such as condition, update policy etc.

cfn_resource_type

AWS resource type.

channel_flow_ref

A reference to a ChannelFlow resource.

creation_stack

return:

the stack trace of the point where this Resource was created from, sourced from the +metadata+ entry typed +aws:cdk:logicalId+, and with the bottom-most node +internal+ entries filtered.

env
logical_id

The logical ID for this CloudFormation stack element.

The logical ID of the element is calculated from the path of the resource node in the construct tree.

To override this value, use overrideLogicalId(newLogicalId).

Returns:

the logical ID as a stringified token. This value will only get resolved during synthesis.

name

The name of the channel flow.

node

The tree node.

processors

Information about the processor Lambda functions.

ref

Return a string that will be resolved to a CloudFormation { Ref } for this element.

If, by any chance, the intrinsic reference of a resource is not a string, you could coerce it to an IResolvable through Lazy.any({ produce: resource.ref }).

stack

The stack in which this element is defined.

CfnElements must be defined within a stack scope (directly or indirectly).

tags

The tags for the channel flow.

Static Methods

classmethod arn_for_channel_flow(resource)
Parameters:

resource (IChannelFlowRef)

Return type:

str

classmethod is_cfn_channel_flow(x)

Checks whether the given object is a CfnChannelFlow.

Parameters:

x (Any)

Return type:

bool

classmethod is_cfn_element(x)

Returns true if a construct is a stack element (i.e. part of the synthesized cloudformation template).

Uses duck-typing instead of instanceof to allow stack elements from different versions of this library to be included in the same stack.

Parameters:

x (Any)

Return type:

bool

Returns:

The construct as a stack element or undefined if it is not a stack element.

classmethod is_cfn_resource(x)

Check whether the given object is a CfnResource.

Parameters:

x (Any)

Return type:

bool

classmethod is_construct(x)

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.

Parameters:

x (Any) – Any object.

Return type:

bool

Returns:

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

LambdaConfigurationProperty

class CfnChannelFlow.LambdaConfigurationProperty(*, invocation_type, resource_arn)

Bases: object

Stores metadata about a Lambda processor.

Parameters:
  • invocation_type (str) – Controls how the Lambda function is invoked.

  • resource_arn (str) – The ARN of the Lambda message processing function.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-lambdaconfiguration.html

ExampleMetadata:

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_chime as chime

lambda_configuration_property = chime.CfnChannelFlow.LambdaConfigurationProperty(
    invocation_type="invocationType",
    resource_arn="resourceArn"
)

Attributes

invocation_type

Controls how the Lambda function is invoked.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-lambdaconfiguration.html#cfn-chime-channelflow-lambdaconfiguration-invocationtype

resource_arn

The ARN of the Lambda message processing function.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-lambdaconfiguration.html#cfn-chime-channelflow-lambdaconfiguration-resourcearn

ProcessorConfigurationProperty

class CfnChannelFlow.ProcessorConfigurationProperty(*, lambda_)

Bases: object

A processor’s metadata.

Parameters:

lambda – Stores metadata about a Lambda processor.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processorconfiguration.html

ExampleMetadata:

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_chime as chime

processor_configuration_property = chime.CfnChannelFlow.ProcessorConfigurationProperty(
    lambda_=chime.CfnChannelFlow.LambdaConfigurationProperty(
        invocation_type="invocationType",
        resource_arn="resourceArn"
    )
)

Attributes

lambda_

Stores metadata about a Lambda processor.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processorconfiguration.html#cfn-chime-channelflow-processorconfiguration-lambda

ProcessorProperty

class CfnChannelFlow.ProcessorProperty(*, configuration, execution_order, fallback_action, name)

Bases: object

Information about a processor in a channel flow.

Parameters:
  • configuration (Union[IResolvable, ProcessorConfigurationProperty, Dict[str, Any]]) – A processor’s metadata.

  • execution_order (Union[int, float]) – The sequence in which processors run.

  • fallback_action (str) – Determines whether to continue or stop processing when communication with a processor fails.

  • name (str) – The name of the processor.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processor.html

ExampleMetadata:

fixture=_generated

Example:

# The code below shows an example of how to instantiate this type.
# The values are placeholders you should change.
from aws_cdk import aws_chime as chime

processor_property = chime.CfnChannelFlow.ProcessorProperty(
    configuration=chime.CfnChannelFlow.ProcessorConfigurationProperty(
        lambda_=chime.CfnChannelFlow.LambdaConfigurationProperty(
            invocation_type="invocationType",
            resource_arn="resourceArn"
        )
    ),
    execution_order=123,
    fallback_action="fallbackAction",
    name="name"
)

Attributes

configuration

A processor’s metadata.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processor.html#cfn-chime-channelflow-processor-configuration

execution_order

The sequence in which processors run.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processor.html#cfn-chime-channelflow-processor-executionorder

fallback_action

Determines whether to continue or stop processing when communication with a processor fails.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processor.html#cfn-chime-channelflow-processor-fallbackaction

name

The name of the processor.

See:

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-chime-channelflow-processor.html#cfn-chime-channelflow-processor-name