Amazon API Gateway
API Reference

Authorizers

Represents the collection of authorizers for an API. For Lambda (REQUEST) authorizers, see Use API Gateway Lambda Authorizers.

URI

/v2/apis/apiId/authorizers

HTTP Methods

GET

Operation ID: GetAuthorizers

Gets the Authorizers for an API.

Path Parameters

Name Type Required Description
apiId String True

The API identifier.

Query Parameters

Name Type Required Description
nextToken String False

The next page of elements from this collection. Not valid for the last element of the collection.

maxResults String False

The maximum number of elements to be returned for this resource.

Responses

Status Code Response Model Description
200 Authorizers

Success

400 BadRequestException

One of the parameters in the request is invalid.

404 NotFoundException

The resource specified in the request was not found.

429 LimitExceededException

The client is sending more than the allowed number of requests per unit of time.

POST

Operation ID: CreateAuthorizer

Creates an Authorizer for an API.

Path Parameters

Name Type Required Description
apiId String True

The API identifier.

Responses

Status Code Response Model Description
201 Authorizer

The request has succeeded and has resulted in the creation of a resource.

400 BadRequestException

One of the parameters in the request is invalid.

404 NotFoundException

The resource specified in the request was not found.

409 ConflictException

The resource already exists.

429 LimitExceededException

The client is sending more than the allowed number of requests per unit of time.

Schemas

Request Bodies

Example POST

{ "name": "string", "authorizerType": enum, "authorizerUri": "string", "authorizerCredentialsArn": "string", "providerArns": [ "string" ], "identitySource": [ "string" ], "identityValidationExpression": "string", "authorizerResultTtlInSeconds": integer }

Response Bodies

Example Authorizers

{ "items": [ { "authorizerId": "string", "name": "string", "authorizerType": enum, "authorizerUri": "string", "authorizerCredentialsArn": "string", "providerArns": [ "string" ], "identitySource": [ "string" ], "identityValidationExpression": "string", "authorizerResultTtlInSeconds": integer } ], "nextToken": "string" }

Example Authorizer

{ "authorizerId": "string", "name": "string", "authorizerType": enum, "authorizerUri": "string", "authorizerCredentialsArn": "string", "providerArns": [ "string" ], "identitySource": [ "string" ], "identityValidationExpression": "string", "authorizerResultTtlInSeconds": integer }

Example BadRequestException

{ "message": "string" }

Example NotFoundException

{ "message": "string", "resourceType": "string" }

Example ConflictException

{ "message": "string" }

Example LimitExceededException

{ "message": "string", "limitType": "string" }

Properties

Authorizer

Represents an authorizer.

Property Type Required Description
authorizerId

string

False

The authorizer identifier.

name

string

True

The name of the authorizer.

authorizerType

AuthorizerType

False

The authorizer type. Currently the only valid value is REQUEST, for a Lambda function using incoming request parameters.

authorizerUri

string

False

The authorizer's Uniform Resource Identifier (URI). ForREQUEST authorizers, this must be a well-formed Lambda function URI, for example, arn:aws:apigateway:us-west-2:lambda:path/2015-03-31/functions/arn:aws:lambda:us-west-2:{account_id}:function:{lambda_function_name}/invocations. In general, the URI has this form: arn:aws:apigateway:{region}:lambda:path/{service_api} , where {region} is the same as the region hosting the Lambda function, path indicates that the remaining substring in the URI should be treated as the path to the resource, including the initial /. For Lambda functions, this is usually of the form /2015-03-31/functions/[FunctionARN]/invocations.

authorizerCredentialsArn

string

False

Specifies the required credentials as an IAM role for API Gateway to invoke the authorizer. To specify an IAM role for API Gateway to assume, use the role's Amazon Resource Name (ARN). To use resource-based permissions on the Lambda function, specify null.

providerArns

Array of type string

False

For REQUEST authorizer, this is not defined.

identitySource

Array of type string

False

The identity source for which authorization is requested.

For the REQUEST authorizer, this is required when authorization caching is enabled. The value is a comma-separated string of one or more mapping expressions of the specified request parameters. For example, if an Auth header and a Name query string parameters are defined as identity sources, this value is method.request.header.Auth, method.request.querystring.Name. These parameters will be used to derive the authorization caching key and to perform runtime validation of the REQUEST authorizer by verifying all of the identity-related request parameters are present, not null, and non-empty. Only when this is true does the authorizer invoke the authorizer Lambda function, otherwise, it returns a 401 Unauthorized response without calling the Lambda function. The valid value is a string of comma-separated mapping expressions of the specified request parameters. When the authorization caching is not enabled, this property is optional.

identityValidationExpression

string

False

The validation expression does not apply to the REQUEST authorizer.

authorizerResultTtlInSeconds

integer

False

The time to live (TTL), in seconds, of cached authorizer results. If it equals 0, authorization caching is disabled. If it is greater than 0, API Gateway will cache authorizer responses. If this field is not set, the default value is 300. The maximum value is 3600, or 1 hour.

AuthorizerType

The authorizer type. Currently the only valid value is REQUEST, for a Lambda function using incoming request parameters.

  • REQUEST

Authorizers

Represents a collection of authorizers.

Property Type Required Description
items

Array of type Authorizer

False

The elements from this collection.

nextToken

string

False

The next page of elements from this collection. Not valid for the last element of the collection.

BadRequestException

The request is not valid, for example, the input is incomplete or incorrect. See the accompanying error message for details.

Property Type Required Description
message

string

False

Describes the error encountered.

ConflictException

The requested operation would cause a conflict with the current state of a service resource associated with the request. Resolve the conflict before retrying this request. See the accompanying error message for details.

Property Type Required Description
message

string

False

Describes the error encountered.

CreateAuthorizerInput

Represents the input parameters for a CreateAuthorizer request.

Property Type Required Description
name

string

True

The name of the authorizer.

authorizerType

AuthorizerType

True

The authorizer type. Currently the only valid value is REQUEST, for a Lambda function using incoming request parameters.

authorizerUri

string

True

The authorizer's Uniform Resource Identifier (URI). For REQUEST authorizers, this must be a well-formed Lambda function URI, for example, arn:aws:apigateway:us-west-2:lambda:path/2015-03-31/functions/arn:aws:lambda:us-west-2:{account_id}:function:{lambda_function_name}/invocations. In general, the URI has this form: arn:aws:apigateway:{region}:lambda:path/{service_api} , where {region} is the same as the region hosting the Lambda function, path indicates that the remaining substring in the URI should be treated as the path to the resource, including the initial /. For Lambda functions, this is usually of the form /2015-03-31/functions/[FunctionARN]/invocations.

authorizerCredentialsArn

string

False

Specifies the required credentials as an IAM role for API Gateway to invoke the authorizer. To specify an IAM role for API Gateway to assume, use the role's Amazon Resource Name (ARN). To use resource-based permissions on the Lambda function, specify null.

providerArns

Array of type string

False

For REQUEST authorizer, this is not defined.

identitySource

Array of type string

True

The identity source for which authorization is requested.

For the REQUEST authorizer, this is required when authorization caching is enabled. The value is a comma-separated string of one or more mapping expressions of the specified request parameters. For example, if an Auth header and a Name query string parameters are defined as identity sources, this value is method.request.header.Auth, method.request.querystring.Name. These parameters will be used to derive the authorization caching key and to perform runtime validation of the REQUEST authorizer by verifying all of the identity-related request parameters are present, not null, and non-empty. Only when this is true does the authorizer invoke the authorizer Lambda function, otherwise, it returns a 401 Unauthorized response without calling the Lambda function. The valid value is a string of comma-separated mapping expressions of the specified request parameters. When the authorization caching is not enabled, this property is optional.

identityValidationExpression

string

False

The validation expression does not apply to the REQUEST authorizer.

authorizerResultTtlInSeconds

integer

False

The time to live (TTL), in seconds, of cached authorizer results. If it equals 0, authorization caching is disabled. If it is greater than 0, API Gateway will cache authorizer responses. If this field is not set, the default value is 300. The maximum value is 3600, or 1 hour.

LimitExceededException

A limit has been exceeded. See the accompanying error message for details.

Property Type Required Description
message

string

False

Describes the error encountered.

limitType

string

False

The limit type.

NotFoundException

The resource specified in the request was not found. See the message field for more information.

Property Type Required Description
message

string

False

Describes the error encountered.

resourceType

string

False

The resource type.

See Also

For more information about using this API in one of the language-specific AWS SDKs and references, see the following:

GetAuthorizers

CreateAuthorizer