LambdaDataSource

class aws_cdk.aws_appsync.LambdaDataSource(scope, id, *, lambda_function, service_role=None, api, description=None, name=None)

Bases: BackedDataSource

(experimental) An AppSync datasource backed by a Lambda function.

Stability:

experimental

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
import aws_cdk.aws_iam as iam
import aws_cdk.aws_lambda as lambda_

# function_: lambda.Function
# graphql_api: appsync.GraphqlApi
# role: iam.Role

lambda_data_source = appsync.LambdaDataSource(self, "MyLambdaDataSource",
    api=graphql_api,
    lambda_function=function_,

    # the properties below are optional
    description="description",
    name="name",
    service_role=role
)
Parameters:

  • scope (Construct) –

  • id (str) –

  • lambda_function (IFunction) – (experimental) The Lambda function to call to interact with this data source.

  • service_role (Optional[IRole]) – (experimental) The IAM service role to be assumed by AppSync to interact with the data source. Default: - Create a new role

  • api (IGraphqlApi) – (experimental) The API to attach this data source to.

  • description (Optional[str]) – (experimental) the description of the data source. Default: - None

  • name (Optional[str]) – (experimental) The name of the data source. Default: - id of data source

Stability:

experimental

Methods

create_function(*, name, description=None, request_mapping_template=None, response_mapping_template=None)

(experimental) creates a new appsync function for this datasource and API using the given properties.

Parameters:

  • name (str) – (experimental) the name of the AppSync Function.

  • description (Optional[str]) – (experimental) the description for this AppSync Function. Default: - no description

  • request_mapping_template (Optional[MappingTemplate]) – (experimental) the request mapping template for the AppSync Function. Default: - no request mapping template

  • response_mapping_template (Optional[MappingTemplate]) – (experimental) the response mapping template for the AppSync Function. Default: - no response mapping template

Stability:

experimental

Return type:

AppsyncFunction

create_resolver(*, field_name, type_name, caching_config=None, pipeline_config=None, request_mapping_template=None, response_mapping_template=None)

(experimental) creates a new resolver for this datasource and API using the given properties.

Parameters:

  • field_name (str) – (experimental) name of the GraphQL field in the given type this resolver is attached to.

  • type_name (str) – (experimental) name of the GraphQL type this resolver is attached to.

  • caching_config (Union[CachingConfig, Dict[str, Any], None]) – (experimental) The caching configuration for this resolver. Default: - No caching configuration

  • pipeline_config (Optional[Sequence[IAppsyncFunction]]) – (experimental) configuration of the pipeline resolver. Default: - no pipeline resolver configuration An empty array | undefined sets resolver to be of kind, unit

  • request_mapping_template (Optional[MappingTemplate]) – (experimental) The request mapping template for this resolver. Default: - No mapping template

  • response_mapping_template (Optional[MappingTemplate]) – (experimental) The response mapping template for this resolver. Default: - No mapping template

Stability:

experimental

Return type:

Resolver

to_string()

Returns a string representation of this construct.

Return type:

str

Attributes

ds

(experimental) the underlying CFN data source resource.

Stability:

experimental

grant_principal

(experimental) the principal of the data source to be IGrantable.

Stability:

experimental

name

(experimental) the name of the data source.

Stability:

experimental

node

The construct tree node associated with this construct.

Static Methods

classmethod is_construct(x)

Return whether the given object is a Construct.

Parameters:

x (Any) –

Return type:

bool