CfnFunctionConfiguration

class aws_cdk.aws_appsync.CfnFunctionConfiguration(scope, id, *, api_id, data_source_name, function_version, name, description=None, max_batch_size=None, request_mapping_template=None, request_mapping_template_s3_location=None, response_mapping_template=None, response_mapping_template_s3_location=None, sync_config=None)

Bases: aws_cdk.core.CfnResource

A CloudFormation AWS::AppSync::FunctionConfiguration.

The AWS::AppSync::FunctionConfiguration resource defines the functions in GraphQL APIs to perform certain operations. You can use pipeline resolvers to attach functions. For more information, see Pipeline Resolvers in the AWS AppSync Developer Guide . .. epigraph:

When you submit an update, AWS CloudFormation updates resources based on differences between what you submit and the stack's current template. To cause this resource to be updated you must change a property value for this resource in the AWS CloudFormation template. Changing the Amazon S3 file content without changing a property value will not result in an update operation.

See `Update Behaviors of Stack Resources <https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html>`_ in the *AWS CloudFormation User Guide* .
CloudformationResource

AWS::AppSync::FunctionConfiguration

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html

ExampleMetadata

fixture=_generated

Example:

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

cfn_function_configuration = appsync.CfnFunctionConfiguration(self, "MyCfnFunctionConfiguration",
    api_id="apiId",
    data_source_name="dataSourceName",
    function_version="functionVersion",
    name="name",

    # the properties below are optional
    description="description",
    max_batch_size=123,
    request_mapping_template="requestMappingTemplate",
    request_mapping_template_s3_location="requestMappingTemplateS3Location",
    response_mapping_template="responseMappingTemplate",
    response_mapping_template_s3_location="responseMappingTemplateS3Location",
    sync_config=appsync.CfnFunctionConfiguration.SyncConfigProperty(
        conflict_detection="conflictDetection",

        # the properties below are optional
        conflict_handler="conflictHandler",
        lambda_conflict_handler_config=appsync.CfnFunctionConfiguration.LambdaConflictHandlerConfigProperty(
            lambda_conflict_handler_arn="lambdaConflictHandlerArn"
        )
    )
)

Create a new AWS::AppSync::FunctionConfiguration.

Parameters
  • scope (Construct) –

    • scope in which this resource is defined.

  • id (str) –

    • scoped id of the resource.

  • api_id (str) – The AWS AppSync GraphQL API that you want to attach using this function.

  • data_source_name (str) – The name of data source this function will attach.

  • function_version (str) – The version of the request mapping template. Currently, only the 2018-05-29 version of the template is supported.

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

  • description (Optional[str]) – The Function description.

  • max_batch_size (Union[int, float, None]) – The maximum number of resolver request inputs that will be sent to a single AWS Lambda function in a BatchInvoke operation.

  • request_mapping_template (Optional[str]) – The Function request mapping template. Functions support only the 2018-05-29 version of the request mapping template.

  • request_mapping_template_s3_location (Optional[str]) – Describes a Sync configuration for a resolver. Contains information on which Conflict Detection, as well as Resolution strategy, should be performed when the resolver is invoked.

  • response_mapping_template (Optional[str]) – The Function response mapping template.

  • response_mapping_template_s3_location (Optional[str]) – The location of a response mapping template in an Amazon S3 bucket. Use this if you want to provision with a template file in Amazon S3 rather than embedding it in your CloudFormation template.

  • sync_config (Union[IResolvable, SyncConfigProperty, None]) – Describes a Sync configuration for a resolver. Specifies which Conflict Detection strategy and Resolution strategy to use when the resolver is invoked.

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_depends_on(target)

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.

Parameters

target (CfnResource) –

Return type

None

add_metadata(key, value)

Add a value to the CloudFormation Resource Metadata.

Parameters
  • key (str) –

  • value (Any) –

See

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.

Return type

None

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 intermdediate 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

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).

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 resoure, please consult that specific resource’s documentation.

Return type

None

get_att(attribute_name)

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.

Return type

Reference

get_metadata(key)

Retrieve a value value from the CloudFormation Resource Metadata.

Parameters

key (str) –

See

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.

Return type

Any

inspect(inspector)

Examines the CloudFormation resource and discloses attributes.

Parameters

inspector (TreeInspector) –

  • tree inspector to collect and process attributes.

Return type

None

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

to_string()

Returns a string representation of this construct.

Return type

str

Returns

a string representation of this resource

Attributes

CFN_RESOURCE_TYPE_NAME = 'AWS::AppSync::FunctionConfiguration'
api_id

The AWS AppSync GraphQL API that you want to attach using this function.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-apiid

Return type

str

attr_data_source_name

The name of data source this function will attach.

CloudformationAttribute

DataSourceName

Return type

str

attr_function_arn

ARN of the function, such as arn:aws:appsync:us-east-1:123456789012:apis/graphqlapiid/functions/functionId .

CloudformationAttribute

FunctionArn

Return type

str

attr_function_id

The unique ID of this function.

CloudformationAttribute

FunctionId

Return type

str

attr_name

The name of the function.

CloudformationAttribute

Name

Return type

str

cfn_options

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

Return type

ICfnResourceOptions

cfn_resource_type

AWS resource type.

Return type

str

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.

Return type

List[str]

data_source_name

The name of data source this function will attach.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-datasourcename

Return type

str

description

The Function description.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-description

Return type

Optional[str]

function_version

The version of the request mapping template.

Currently, only the 2018-05-29 version of the template is supported.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-functionversion

Return type

str

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).

Return type

str

Returns

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

max_batch_size

The maximum number of resolver request inputs that will be sent to a single AWS Lambda function in a BatchInvoke operation.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-maxbatchsize

Return type

Union[int, float, None]

name

The name of the function.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-name

Return type

str

node

The construct tree node associated with this construct.

Return type

ConstructNode

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 }).

Return type

str

request_mapping_template

The Function request mapping template.

Functions support only the 2018-05-29 version of the request mapping template.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-requestmappingtemplate

Return type

Optional[str]

request_mapping_template_s3_location

Describes a Sync configuration for a resolver.

Contains information on which Conflict Detection, as well as Resolution strategy, should be performed when the resolver is invoked.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-requestmappingtemplates3location

Return type

Optional[str]

response_mapping_template

The Function response mapping template.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-responsemappingtemplate

Return type

Optional[str]

response_mapping_template_s3_location

The location of a response mapping template in an Amazon S3 bucket.

Use this if you want to provision with a template file in Amazon S3 rather than embedding it in your CloudFormation template.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-responsemappingtemplates3location

Return type

Optional[str]

stack

The stack in which this element is defined.

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

Return type

Stack

sync_config

Describes a Sync configuration for a resolver.

Specifies which Conflict Detection strategy and Resolution strategy to use when the resolver is invoked.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-appsync-functionconfiguration.html#cfn-appsync-functionconfiguration-syncconfig

Return type

Union[IResolvable, SyncConfigProperty, None]

Static Methods

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(construct)

Check whether the given construct is a CfnResource.

Parameters

construct (IConstruct) –

Return type

bool

classmethod is_construct(x)

Return whether the given object is a Construct.

Parameters

x (Any) –

Return type

bool

LambdaConflictHandlerConfigProperty

class CfnFunctionConfiguration.LambdaConflictHandlerConfigProperty(*, lambda_conflict_handler_arn=None)

Bases: object

The LambdaConflictHandlerConfig object when configuring LAMBDA as the Conflict Handler.

Parameters

lambda_conflict_handler_arn (Optional[str]) – The Amazon Resource Name (ARN) for the Lambda function to use as the Conflict Handler.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-lambdaconflicthandlerconfig.html

ExampleMetadata

fixture=_generated

Example:

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

lambda_conflict_handler_config_property = appsync.CfnFunctionConfiguration.LambdaConflictHandlerConfigProperty(
    lambda_conflict_handler_arn="lambdaConflictHandlerArn"
)

Attributes

lambda_conflict_handler_arn

The Amazon Resource Name (ARN) for the Lambda function to use as the Conflict Handler.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-lambdaconflicthandlerconfig.html#cfn-appsync-functionconfiguration-lambdaconflicthandlerconfig-lambdaconflicthandlerarn

Return type

Optional[str]

SyncConfigProperty

class CfnFunctionConfiguration.SyncConfigProperty(*, conflict_detection, conflict_handler=None, lambda_conflict_handler_config=None)

Bases: object

Describes a Sync configuration for a resolver.

Specifies which Conflict Detection strategy and Resolution strategy to use when the resolver is invoked.

Parameters
  • conflict_detection (str) – The Conflict Detection strategy to use. - VERSION : Detect conflicts based on object versions for this resolver. - NONE : Do not detect conflicts when invoking this resolver.

  • conflict_handler (Optional[str]) – The Conflict Resolution strategy to perform in the event of a conflict. - OPTIMISTIC_CONCURRENCY : Resolve conflicts by rejecting mutations when versions don’t match the latest version at the server. - AUTOMERGE : Resolve conflicts with the Automerge conflict resolution strategy. - LAMBDA : Resolve conflicts with an AWS Lambda function supplied in the LambdaConflictHandlerConfig .

  • lambda_conflict_handler_config (Union[IResolvable, LambdaConflictHandlerConfigProperty, None]) – The LambdaConflictHandlerConfig when configuring LAMBDA as the Conflict Handler.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-syncconfig.html

ExampleMetadata

fixture=_generated

Example:

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

sync_config_property = appsync.CfnFunctionConfiguration.SyncConfigProperty(
    conflict_detection="conflictDetection",

    # the properties below are optional
    conflict_handler="conflictHandler",
    lambda_conflict_handler_config=appsync.CfnFunctionConfiguration.LambdaConflictHandlerConfigProperty(
        lambda_conflict_handler_arn="lambdaConflictHandlerArn"
    )
)

Attributes

conflict_detection

The Conflict Detection strategy to use.

  • VERSION : Detect conflicts based on object versions for this resolver.

  • NONE : Do not detect conflicts when invoking this resolver.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-syncconfig.html#cfn-appsync-functionconfiguration-syncconfig-conflictdetection

Return type

str

conflict_handler

The Conflict Resolution strategy to perform in the event of a conflict.

  • OPTIMISTIC_CONCURRENCY : Resolve conflicts by rejecting mutations when versions don’t match the latest version at the server.

  • AUTOMERGE : Resolve conflicts with the Automerge conflict resolution strategy.

  • LAMBDA : Resolve conflicts with an AWS Lambda function supplied in the LambdaConflictHandlerConfig .

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-syncconfig.html#cfn-appsync-functionconfiguration-syncconfig-conflicthandler

Return type

Optional[str]

lambda_conflict_handler_config

The LambdaConflictHandlerConfig when configuring LAMBDA as the Conflict Handler.

Link

http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-appsync-functionconfiguration-syncconfig.html#cfn-appsync-functionconfiguration-syncconfig-lambdaconflicthandlerconfig

Return type

Union[IResolvable, LambdaConflictHandlerConfigProperty, None]