AWS Lambda
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Creates a list of tags (key-value pairs) on the Lambda function. Requires the Lambda function ARN (Amazon Resource Name). If a key is specified without a value, Lambda creates a tag with the specified key and a value of null.

Request Syntax

POST /2017-03-31/tags/ARN HTTP/1.1
Content-type: application/json

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

URI Request Parameters

The request requires the following URI parameters.


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

Pattern: arn:aws:lambda:[a-z]{2}-[a-z]+-\d{1}:\d{12}:function:[a-zA-Z0-9-_]+(:(\$LATEST|[a-zA-Z0-9-_]+))?

Request Body

The request accepts the following data in JSON format.


The list of tags (key-value pairs) you are assigning to the Lambda function.

Type: String to string map

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.



One of the parameters in the request is invalid. For example, if you provided an IAM role for AWS Lambda to assume in the CreateFunction or the UpdateFunctionConfiguration API, that AWS Lambda is unable to assume you will get this exception.

HTTP Status Code: 400


The resource (for example, a Lambda function or access policy statement) specified in the request does not exist.

HTTP Status Code: 404


The AWS Lambda service encountered an internal error.

HTTP Status Code: 500


HTTP Status Code: 429

See Also

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