Write key-value pair with optional metadata

PUT /accounts/{account_id}/storage/kv/namespaces/{namespace_id}/values/{key_name}

Copy endpoint

https://api.cloudflare.com/client/v4

Write a value identified by a key. Use URL-encoding to use special characters (for example, :, !, %) in the key name. Body should be the value to be stored. If JSON metadata to be associated with the key/value pair is needed, use multipart/form-data content type for your PUT request (see dropdown below in REQUEST BODY SCHEMA). Existing values, expirations, and metadata will be overwritten. If neither expiration nor expiration_ttl is specified, the key-value pair will never expire. If both are set, expiration_ttl is used and expiration is ignored.

Parameters

path Path Parameters

Name	Type
`key_name` required	type WorkersKvKeyName = string
`namespace_id` required	type WorkersKvNamespaceIdentifier = string
`account_id` required	type WorkersKvIdentifier = string

query Query Parameters

Name	Type
`expiration`	type WorkersKvExpiration = number
`expiration_ttl`	type WorkersKvExpirationTtl = number

Request Body

application/octet-stream required

type WorkersKvValue = string

Responses

200 application/json

Write key-value pair with metadata response.

type WorkersKvApiResponseCommonNoResult = interface WorkersKvApiResponseCommon {
errors:

WorkersKvMessages

type WorkersKvMessages = { code: number;message: string; }[]

;
messages:

WorkersKvMessages

type WorkersKvMessages = { code: number;message: string; }[]

;
success: true;
} & { result?: {} | null; }

Client Errors

4XX application/json

Write key-value pair with metadata response failure.

interface WorkersKvApiResponseCommonFailure {
errors:

WorkersKvMessages

type WorkersKvMessages = { code: number;message: string; }[]

;
messages:

WorkersKvMessages

type WorkersKvMessages = { code: number;message: string; }[]

;
result: {} | null;
success: false;
}