AppSync / Client / get_resolver

get_resolver#

AppSync.Client.get_resolver(**kwargs)#

Retrieves a Resolver object.

See also: AWS API Documentation

Request Syntax

response = client.get_resolver(
    apiId='string',
    typeName='string',
    fieldName='string'
)
Parameters:

  • apiId (string) –

    [REQUIRED]

    The API ID.

  • typeName (string) –

    [REQUIRED]

    The resolver type name.

  • fieldName (string) –

    [REQUIRED]

    The resolver field name.

Return type:

dict

Returns:

Response Syntax

{
    'resolver': {
        'typeName': 'string',
        'fieldName': 'string',
        'dataSourceName': 'string',
        'resolverArn': 'string',
        'requestMappingTemplate': 'string',
        'responseMappingTemplate': 'string',
        'kind': 'UNIT'|'PIPELINE',
        'pipelineConfig': {
            'functions': [
                'string',
            ]
        },
        'syncConfig': {
            'conflictHandler': 'OPTIMISTIC_CONCURRENCY'|'LAMBDA'|'AUTOMERGE'|'NONE',
            'conflictDetection': 'VERSION'|'NONE',
            'lambdaConflictHandlerConfig': {
                'lambdaConflictHandlerArn': 'string'
            }
        },
        'cachingConfig': {
            'ttl': 123,
            'cachingKeys': [
                'string',
            ]
        },
        'maxBatchSize': 123,
        'runtime': {
            'name': 'APPSYNC_JS',
            'runtimeVersion': 'string'
        },
        'code': 'string',
        'metricsConfig': 'ENABLED'|'DISABLED'
    }
}

Response Structure

  • (dict) –

    • resolver (dict) –

      The Resolver object.

      • typeName (string) –

        The resolver type name.

      • fieldName (string) –

        The resolver field name.

      • dataSourceName (string) –

        The resolver data source name.

      • resolverArn (string) –

        The resolver Amazon Resource Name (ARN).

      • requestMappingTemplate (string) –

        The request mapping template.

      • responseMappingTemplate (string) –

        The response mapping template.

      • kind (string) –

        The resolver type.

        • UNIT: A UNIT resolver type. A UNIT resolver is the default resolver type. You can use a UNIT resolver to run a GraphQL query against a single data source.

        • PIPELINE: A PIPELINE resolver type. You can use a PIPELINE resolver to invoke a series of Function objects in a serial manner. You can use a pipeline resolver to run a GraphQL query against multiple data sources.

      • pipelineConfig (dict) –

        The PipelineConfig.

        • functions (list) –

          A list of Function objects.

          • (string) –

      • syncConfig (dict) –

        The SyncConfig for a resolver attached to a versioned data source.

        • conflictHandler (string) –

          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 Lambda function supplied in the LambdaConflictHandlerConfig.

        • conflictDetection (string) –

          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.

        • lambdaConflictHandlerConfig (dict) –

          The LambdaConflictHandlerConfig when configuring LAMBDA as the Conflict Handler.

          • lambdaConflictHandlerArn (string) –

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

      • cachingConfig (dict) –

        The caching configuration for the resolver.

        • ttl (integer) –

          The TTL in seconds for a resolver that has caching activated.

          Valid values are 1–3,600 seconds.

        • cachingKeys (list) –

          The caching keys for a resolver that has caching activated.

          Valid values are entries from the $context.arguments, $context.source, and $context.identity maps.

          • (string) –

      • maxBatchSize (integer) –

        The maximum batching size for a resolver.

      • runtime (dict) –

        Describes a runtime used by an Amazon Web Services AppSync pipeline resolver or Amazon Web Services AppSync function. Specifies the name and version of the runtime to use. Note that if a runtime is specified, code must also be specified.

        • name (string) –

          The name of the runtime to use. Currently, the only allowed value is APPSYNC_JS.

        • runtimeVersion (string) –

          The version of the runtime to use. Currently, the only allowed version is 1.0.0.

      • code (string) –

        The resolver code that contains the request and response functions. When code is used, the runtime is required. The runtime value must be APPSYNC_JS.

      • metricsConfig (string) –

        Enables or disables enhanced resolver metrics for specified resolvers. Note that metricsConfig won’t be used unless the resolverLevelMetricsBehavior value is set to PER_RESOLVER_METRICS. If the resolverLevelMetricsBehavior is set to FULL_REQUEST_RESOLVER_METRICS instead, metricsConfig will be ignored. However, you can still set its value.

        metricsConfig can be ENABLED or DISABLED.

Exceptions