UpdateAuthorizer - Amazon API Gateway

UpdateAuthorizer

Updates an existing Authorizer resource.

Request Syntax

PATCH /restapis/restapi_id/authorizers/authorizer_id HTTP/1.1 Content-type: application/json { "patchOperations": [ { "from": "string", "op": "string", "path": "string", "value": "string" } ] }

URI Request Parameters

The request uses the following URI parameters.

authorizer_id

The identifier of the Authorizer resource.

Required: Yes

restapi_id

The string identifier of the associated RestApi.

Required: Yes

Request Body

The request accepts the following data in JSON format.

patchOperations

For more information about supported patch operations, see Patch Operations.

Type: Array of PatchOperation objects

Required: No

Response Syntax

HTTP/1.1 200 Content-type: application/json { "authorizerCredentials": "string", "authorizerResultTtlInSeconds": number, "authorizerUri": "string", "authType": "string", "id": "string", "identitySource": "string", "identityValidationExpression": "string", "name": "string", "providerARNs": [ "string" ], "type": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

authorizerCredentials

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.

Type: String

authorizerResultTtlInSeconds

The 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.

Type: Integer

authorizerUri

Specifies the authorizer's Uniform Resource Identifier (URI). For TOKEN or 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.

Type: String

authType

Optional customer-defined field, used in OpenAPI imports and exports without functional impact.

Type: String

id

The identifier for the authorizer resource.

Type: String

identitySource

The identity source for which authorization is requested. For a TOKEN or COGNITO_USER_POOLS authorizer, this is required and specifies the request header mapping expression for the custom header holding the authorization token submitted by the client. For example, if the token header name is Auth, the header mapping expression is method.request.header.Auth. 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, a Name query string parameter 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.

Type: String

identityValidationExpression

A validation expression for the incoming identity token. For TOKEN authorizers, this value is a regular expression. For COGNITO_USER_POOLS authorizers, API Gateway will match the aud field of the incoming token from the client against the specified regular expression. It will invoke the authorizer's Lambda function when there is a match. Otherwise, it will return a 401 Unauthorized response without calling the Lambda function. The validation expression does not apply to the REQUEST authorizer.

Type: String

name

The name of the authorizer.

Type: String

providerARNs

A list of the Amazon Cognito user pool ARNs for the COGNITO_USER_POOLS authorizer. Each element is of this format: arn:aws:cognito-idp:{region}:{account_id}:userpool/{user_pool_id}. For a TOKEN or REQUEST authorizer, this is not defined.

Type: Array of strings

type

The authorizer type. Valid values are TOKEN for a Lambda function using a single authorization token submitted in a custom header, REQUEST for a Lambda function using incoming request parameters, and COGNITO_USER_POOLS for using an Amazon Cognito user pool.

Type: String

Valid Values: TOKEN | REQUEST | COGNITO_USER_POOLS

Errors

For information about the errors that are common to all actions, see Common Errors.

BadRequestException

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

HTTP Status Code: 400

NotFoundException

The requested resource is not found. Make sure that the request URI is correct.

HTTP Status Code: 404

TooManyRequestsException

The request has reached its throttling limit. Retry after the specified time period.

HTTP Status Code: 429

UnauthorizedException

The request is denied because the caller has insufficient permissions.

HTTP Status Code: 401

Examples

Update a custom authorizer

The following request updates the identitySource property of a custom authorizer to use a different header to pass the token used by the specified custom authorizer.

Sample Request

PATCH /restapis/mxsmn867vb/authorizers/4unj71 HTTP/1.1 Content-Type: application/json Host: apigateway.us-east-1.amazonaws.com X-Amz-Date: 20170223T233106Z Authorization: AWS4-HMAC-SHA256 Credential={access_key_ID}/20170223/us-east-1/apigateway/aws4_request, SignedHeaders=content-length;content-type;host;x-amz-date, Signature={sig4_hash} { "patchOperations" : [ { "op" : "replace", "path" : "/identitySource", "value" : "method.request.header.ApiAuth" }] }

Sample Response

{ "_links": { "curies": { "href": "https://docs.aws.amazon.com/apigateway/latest/developerguide/restapi-authorizer-{rel}.html", "name": "authorizer", "templated": true }, "self": { "href": "/restapis/mxsmn867vb/authorizers/4unj71" }, "authorizer:delete": { "href": "/restapis/mxsmn867vb/authorizers/4unj71" }, "authorizer:update": { "href": "/restapis/mxsmn867vb/authorizers/4unj71" } }, "authType": "custom", "authorizerCredentials": "arn:aws:iam::123456789012:role/apigAwsProxyRole", "authorizerResultTtlInSeconds": 300, "authorizerUri": "arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:123456789012:function:myApiAuthroizer/invocations", "id": "4unj71", "identitySource": "method.request.header.ApiAuth", "name": "my-other-cust-auth", "type": "TOKEN" }

See Also

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