Request Syntax URI Request Parameters Request Body Response Syntax Response Elements Errors See Also

TagResource

Adds tags to a web function. If a tag key already exists, the existing value is overwritten with the new value.

Request Syntax


POST /2025-03-07/tags/resource HTTP/1.1
Content-type: application/json

{
   "Tags": { 
      "string" : "string" 
   }
}

URI Request Parameters

The request uses the following URI parameters.

resource

The Amazon Resource Name (ARN) of the web function.

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: arn:[^:]+:lambda:[^:]+:\d{12}:web-function/[^/]+

Required: Yes

Request Body

The request accepts the following data in JSON format.

Tags

A map of tag keys and values to add to the web function.

Type: String to string map

Map Entries: Minimum number of 0 items. Maximum number of 200 items.

Key Length Constraints: Minimum length of 1. Maximum length of 128.

Key Pattern: [a-zA-Z0-9 _\.:/=+\-@]+

Value Length Constraints: Minimum length of 0. Maximum length of 256.

Value Pattern: [a-zA-Z0-9 _\.:/=+\-@]*

Required: Yes

Response Syntax


HTTP/1.1 204

Response Elements

If the action is successful, the service sends back an HTTP 204 response with an empty HTTP body.

Errors

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

AccessDeniedException

You don't have permission to perform this operation. Check the IAM policies for your identity and any resource-based policy on the web function.

message: A message describing the access denied error.

HTTP Status Code: 403

ConflictException

The request conflicts with the current state of the resource. For example, the resource is being modified by another request, you tried to delete a revision that is serving traffic on an endpoint, or the policy revision ID that you specified doesn't match the current policy. Resolve the conflict and try again.

message: A message describing the conflict.
resourceId: The identifier of the resource in conflict.
resourceType: The type of the resource in conflict.

HTTP Status Code: 409

InternalServerException

The request failed because of an internal error in the service. Retry the request. If the error persists, open a support case.

message: A message describing the internal error.

HTTP Status Code: 500

ResourceNotFoundException

The specified web function, revision, endpoint, or resource-based policy doesn't exist. Verify the resource identifier and try again.

message: A message describing the resource not found error.
resourceId: The identifier of the resource that was not found.
resourceType: The type of the resource that was not found.

HTTP Status Code: 404

ServiceQuotaExceededException

The request would exceed a service quota, such as the maximum number of web functions in your account or the maximum number of revisions or endpoints per web function. Request a quota increase or reduce usage and try again.

message: A message describing the quota that was exceeded.
quotaCode: The quota code of the exceeded quota.
resourceId: The identifier of the resource that exceeded the quota.
resourceType: The type of resource that exceeded the quota.
serviceCode: The service code of the service that owns the quota.

HTTP Status Code: 402

ThrottlingException

The request was denied because it exceeded the request rate that Lambda allows for your account. Reduce the frequency of requests and retry with exponential backoff.

message: A message describing the throttling error.
quotaCode: The quota code that was exceeded, if applicable.
retryAfterSeconds: The number of seconds to wait before retrying the request.
serviceCode: The service code of the throttled service.

HTTP Status Code: 429

ValidationException

The request failed validation because a parameter was missing, malformed, or outside the allowed range. Check the request parameters and try again.

message: A message describing the validation error.

HTTP Status Code: 400