API Reference

Workers

Beta

Workers

Versions

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List Versions

client.workers.beta.workers.versions.list(stringworkerId, VersionListParams { account_id, page, per_page } params, RequestOptionsoptions?): V4PagePaginationArray<Version { id, created_on, number, 15 more } >

GET/accounts/{account_id}/workers/workers/{worker_id}/versions

List all versions for a Worker.

Security

API Token

The preferred authorization scheme for interacting with the Cloudflare API. Create a token.

Example:Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY

API Email + API Key

The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key.

Example:X-Auth-Email: user@example.com

The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys.

Example:X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194

Accepted Permissions (at least one required)

Workers Tail ReadWorkers Scripts WriteWorkers Scripts Read

ParametersExpand Collapse

workerId: string

Identifier for the Worker, which can be ID or name.

params: VersionListParams { account_id, page, per_page }

account_id: string

Path param: Identifier.

maxLength32

page?: number

Query param: Current page.

minimum1

per_page?: number

Query param: Items per-page.

maximum100

minimum1

ReturnsExpand Collapse

Version { id, created_on, number, 15 more }

id: string

Version identifier.

formatuuid

created_on: string

When the version was created.

formatdate-time

number: number

The integer version number, starting from one.

urls: Array<string>

All routable URLs that always point to this version. Does not include alias URLs, since aliases can be updated to point to a different version.

annotations?: Annotations { workers/message, workers/tag, workers/triggered_by }

Metadata about the version.

"workers/message"?: string

Human-readable message about the version.

maxLength100

"workers/tag"?: string

User-provided identifier for the version.

maxLength25

"workers/triggered_by"?: string

Operation that triggered the creation of the version.

assets?: Assets { config, jwt }

Configuration for assets within a Worker.

_headers and _redirects files should be included as modules named _headers and _redirects with content type text/plain.

config?: Config { html_handling, not_found_handling, run_worker_first }

Configuration for assets within a Worker.

html_handling?: "auto-trailing-slash" | "force-trailing-slash" | "drop-trailing-slash" | "none"

Determines the redirects and rewrites of requests for HTML content.

One of the following:

"auto-trailing-slash"

"force-trailing-slash"

"drop-trailing-slash"

"none"

not_found_handling?: "none" | "404-page" | "single-page-application"

Determines the response when a request does not match a static asset, and there is no Worker script.

One of the following:

"none"

"404-page"

"single-page-application"

run_worker_first?: Array<string> | boolean

Contains a list path rules to control routing to either the Worker or assets. Glob (*) and negative (!) rules are supported. Rules must start with either ’/’ or ’!/’. At least one non-negative rule must be provided, and negative rules have higher precedence than non-negative rules.

One of the following:

Array<string>

boolean

jwt?: string

Token provided upon successful upload of all files from a registered manifest.

bindings?: Array<WorkersBindingKindAI { name, type } | WorkersBindingKindAISearch { instance_name, name, type, namespace } | WorkersBindingKindAISearchNamespace { name, namespace, type } | 31 more>

List of bindings attached to a Worker. You can find more about bindings on our docs: https://developers.cloudflare.com/workers/configuration/multipart-upload-metadata/#bindings.

One of the following:

WorkersBindingKindAI { name, type }

name: string

A JavaScript variable name for the binding.

type: "ai"

The kind of resource that the binding provides.

WorkersBindingKindAISearch { instance_name, name, type, namespace }

instance_name: string

The user-chosen instance name. Must exist at deploy time. The worker can search, chat, update, and manage items/jobs on this instance.

name: string

A JavaScript variable name for the binding.

type: "ai_search"

The kind of resource that the binding provides.

namespace?: string

The namespace the instance belongs to. Defaults to “default” if omitted. Customers who don’t use namespaces can simply omit this field.

WorkersBindingKindAISearchNamespace { name, namespace, type }

name: string

A JavaScript variable name for the binding.

namespace: string

The user-chosen namespace name. Must exist before deploy — Wrangler handles auto-creation on deploy failure (R2 bucket pattern). The “default” namespace is auto-created by config-api for new accounts. Grants full access (CRUD + search + chat) to all instances within the namespace.

type: "ai_search_namespace"

The kind of resource that the binding provides.

WorkersBindingKindAnalyticsEngine { dataset, name, type }

dataset: string

The name of the dataset to bind to.

name: string

A JavaScript variable name for the binding.

type: "analytics_engine"

The kind of resource that the binding provides.

WorkersBindingKindAssets { name, type }

name: string

A JavaScript variable name for the binding.

type: "assets"

The kind of resource that the binding provides.

WorkersBindingKindBrowser { name, type }

name: string

A JavaScript variable name for the binding.

type: "browser"

The kind of resource that the binding provides.

WorkersBindingKindD1 { id, name, type }

id: string

Identifier of the D1 database to bind to.

name: string

A JavaScript variable name for the binding.

type: "d1"

The kind of resource that the binding provides.

WorkersBindingKindDataBlob { name, part, type }

name: string

A JavaScript variable name for the binding.

part: string

The name of the file containing the data content. Only accepted for service worker syntax Workers.

Deprecatedtype: "data_blob"

The kind of resource that the binding provides.

WorkersBindingKindDispatchNamespace { name, namespace, type, outbound }

name: string

A JavaScript variable name for the binding.

namespace: string

The name of the dispatch namespace.

type: "dispatch_namespace"

The kind of resource that the binding provides.

outbound?: Outbound { params, worker }

Outbound worker.

params?: Array<Param>

Pass information from the Dispatch Worker to the Outbound Worker through the parameters.

name: string

Name of the parameter.

worker?: Worker { entrypoint, environment, service }

Outbound worker.

entrypoint?: string

Entrypoint to invoke on the outbound worker.

environment?: string

Environment of the outbound worker.

service?: string

Name of the outbound worker.

WorkersBindingKindDurableObjectNamespace { name, type, class_name, 4 more }

name: string

A JavaScript variable name for the binding.

type: "durable_object_namespace"

The kind of resource that the binding provides.

class_name?: string

The exported class name of the Durable Object.

dispatch_namespace?: string

The dispatch namespace the Durable Object script belongs to.

environment?: string

The environment of the script_name to bind to.

namespace_id?: string

Namespace identifier tag.

maxLength32

script_name?: string

The script where the Durable Object is defined, if it is external to this Worker.

WorkersBindingKindHyperdrive { id, name, type }

id: string

Identifier of the Hyperdrive connection to bind to.

name: string

A JavaScript variable name for the binding.

type: "hyperdrive"

The kind of resource that the binding provides.

WorkersBindingKindInherit { name, type, old_name, version_id }

name: string

The name of the inherited binding.

type: "inherit"

The kind of resource that the binding provides.

old_name?: string

The old name of the inherited binding. If set, the binding will be renamed from old_name to name in the new version. If not set, the binding will keep the same name between versions.

version_id?: string

Identifier for the version to inherit the binding from, which can be the version ID or the literal “latest” to inherit from the latest version. Defaults to inheriting the binding from the latest version.

WorkersBindingKindImages { name, type }

name: string

A JavaScript variable name for the binding.

type: "images"

The kind of resource that the binding provides.

WorkersBindingKindJson { json, name, type }

json: unknown

JSON data to use.

name: string

A JavaScript variable name for the binding.

type: "json"

The kind of resource that the binding provides.

WorkersBindingKindKVNamespace { name, namespace_id, type }

name: string

A JavaScript variable name for the binding.

namespace_id: string

Namespace identifier tag.

maxLength32

type: "kv_namespace"

The kind of resource that the binding provides.

WorkersBindingKindMedia { name, type }

name: string

A JavaScript variable name for the binding.

type: "media"

The kind of resource that the binding provides.

WorkersBindingKindMTLSCertificate { certificate_id, name, type }

certificate_id: string

Identifier of the certificate to bind to.

name: string

A JavaScript variable name for the binding.

type: "mtls_certificate"

The kind of resource that the binding provides.

WorkersBindingKindPlainText { name, text, type }

name: string

A JavaScript variable name for the binding.

text: string

The text value to use.

type: "plain_text"

The kind of resource that the binding provides.

WorkersBindingKindPipelines { name, pipeline, type }

name: string

A JavaScript variable name for the binding.

pipeline: string

Name of the Pipeline to bind to.

type: "pipelines"

The kind of resource that the binding provides.

WorkersBindingKindQueue { name, queue_name, type }

name: string

A JavaScript variable name for the binding.

queue_name: string

Name of the Queue to bind to.

type: "queue"

The kind of resource that the binding provides.

WorkersBindingKindRatelimit { name, namespace_id, simple, type }

name: string

A JavaScript variable name for the binding.

namespace_id: string

Identifier of the rate limit namespace to bind to.

simple: Simple { limit, period }

The rate limit configuration.

limit: number

The limit (requests per period).

period: number

The period in seconds.

type: "ratelimit"

The kind of resource that the binding provides.

WorkersBindingKindR2Bucket { bucket_name, name, type, jurisdiction }

bucket_name: string

R2 bucket to bind to.

name: string

A JavaScript variable name for the binding.

type: "r2_bucket"

The kind of resource that the binding provides.

jurisdiction?: "eu" | "fedramp" | "fedramp-high"

The jurisdiction of the R2 bucket.

One of the following:

"eu"

"fedramp"

"fedramp-high"

WorkersBindingKindSecretText { name, text, type }

name: string

A JavaScript variable name for the binding.

text: string

The secret value to use.

type: "secret_text"

The kind of resource that the binding provides.

WorkersBindingKindSendEmail { name, type, allowed_destination_addresses, 2 more }

name: string

A JavaScript variable name for the binding.

type: "send_email"

The kind of resource that the binding provides.

allowed_destination_addresses?: Array<string>

List of allowed destination addresses.

allowed_sender_addresses?: Array<string>

List of allowed sender addresses.

destination_address?: string

Destination address for the email.

formatemail

WorkersBindingKindService { name, service, type, 2 more }

name: string

A JavaScript variable name for the binding.

service: string

Name of Worker to bind to.

type: "service"

The kind of resource that the binding provides.

entrypoint?: string

Entrypoint to invoke on the target Worker.

environment?: string

Optional environment if the Worker utilizes one.

WorkersBindingKindTextBlob { name, part, type }

name: string

A JavaScript variable name for the binding.

part: string

The name of the file containing the text content. Only accepted for service worker syntax Workers.

Deprecatedtype: "text_blob"

The kind of resource that the binding provides.

WorkersBindingKindVectorize { index_name, name, type }

index_name: string

Name of the Vectorize index to bind to.

name: string

A JavaScript variable name for the binding.

type: "vectorize"

The kind of resource that the binding provides.

WorkersBindingKindVersionMetadata { name, type }

name: string

A JavaScript variable name for the binding.

type: "version_metadata"

The kind of resource that the binding provides.

WorkersBindingKindSecretsStoreSecret { name, secret_name, store_id, type }

name: string

A JavaScript variable name for the binding.

secret_name: string

Name of the secret in the store.

store_id: string

ID of the store containing the secret.

type: "secrets_store_secret"

The kind of resource that the binding provides.

WorkersBindingKindSecretKey { algorithm, format, name, 4 more }

algorithm: unknown

Algorithm-specific key parameters. Learn more.

format: "raw" | "pkcs8" | "spki" | "jwk"

Data format of the key. Learn more.

One of the following:

"raw"

"pkcs8"

"spki"

"jwk"

name: string

A JavaScript variable name for the binding.

type: "secret_key"

The kind of resource that the binding provides.

usages: Array<"encrypt" | "decrypt" | "sign" | 5 more>

Allowed operations with the key. Learn more.

One of the following:

"encrypt"

"decrypt"

"sign"

"verify"

"deriveKey"

"deriveBits"

"wrapKey"

"unwrapKey"

key_base64?: string

Base64-encoded key data. Required if format is “raw”, “pkcs8”, or “spki”.

key_jwk?: unknown

Key data in JSON Web Key format. Required if format is “jwk”.

WorkersBindingKindWorkflow { name, type, workflow_name, 2 more }

name: string

A JavaScript variable name for the binding.

type: "workflow"

The kind of resource that the binding provides.

workflow_name: string

Name of the Workflow to bind to.

class_name?: string

Class name of the Workflow. Should only be provided if the Workflow belongs to this script.

script_name?: string

Script name that contains the Workflow. If not provided, defaults to this script name.

WorkersBindingKindWasmModule { name, part, type }

name: string

A JavaScript variable name for the binding.

part: string

The name of the file containing the WebAssembly module content. Only accepted for service worker syntax Workers.

Deprecatedtype: "wasm_module"

The kind of resource that the binding provides.

WorkersBindingKindVPCService { name, service_id, type }

name: string

A JavaScript variable name for the binding.

service_id: string

Identifier of the VPC service to bind to.

type: "vpc_service"

The kind of resource that the binding provides.

WorkersBindingKindVPCNetwork { name, type, network_id, tunnel_id }

name: string

A JavaScript variable name for the binding.

type: "vpc_network"

The kind of resource that the binding provides.

network_id?: string

Identifier of the network to bind to. Only “cf1:network” is currently supported. Mutually exclusive with tunnel_id.

tunnel_id?: string

UUID of the Cloudflare Tunnel to bind to. Mutually exclusive with network_id.

compatibility_date?: string

Date indicating targeted support in the Workers runtime. Backwards incompatible fixes to the runtime following this date will not affect this Worker.

compatibility_flags?: Array<string>

Flags that enable or disable certain features in the Workers runtime. Used to enable upcoming features or opt in or out of specific changes not included in a compatibility_date.

limits?: Limits { cpu_ms }

Resource limits enforced at runtime.

cpu_ms: number

CPU time limit in milliseconds.

main_module?: string

The name of the main module in the modules array (e.g. the name of the module that exports a fetch handler).

migration_tag?: string

Durable Object migration tag. Set when the version is deployed. Omitted if the version has not been deployed or the Worker does not use Durable Objects.

migrations?: SingleStepMigration { deleted_classes, new_classes, new_sqlite_classes, 4 more } | WorkersMultipleStepMigrations { new_tag, old_tag, steps }

Migrations for Durable Objects associated with the version. Migrations are applied when the version is deployed.

One of the following:

SingleStepMigration { deleted_classes, new_classes, new_sqlite_classes, 4 more }

A single set of migrations to apply.

deleted_classes?: Array<string>

A list of classes to delete Durable Object namespaces from.

new_classes?: Array<string>

A list of classes to create Durable Object namespaces from.

new_sqlite_classes?: Array<string>

A list of classes to create Durable Object namespaces with SQLite from.

new_tag?: string

Tag to set as the latest migration tag.

old_tag?: string

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

renamed_classes?: Array<RenamedClass>

A list of classes with Durable Object namespaces that were renamed.

from?: string

to?: string

transferred_classes?: Array<TransferredClass>

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from?: string

from_script?: string

to?: string

WorkersMultipleStepMigrations { new_tag, old_tag, steps }

new_tag?: string

Tag to set as the latest migration tag.

old_tag?: string

Tag used to verify against the latest migration tag for this Worker. If they don’t match, the upload is rejected.

steps?: Array<MigrationStep { deleted_classes, new_classes, new_sqlite_classes, 2 more } >

Migrations to apply in order.

deleted_classes?: Array<string>

A list of classes to delete Durable Object namespaces from.

new_classes?: Array<string>

A list of classes to create Durable Object namespaces from.

new_sqlite_classes?: Array<string>

A list of classes to create Durable Object namespaces with SQLite from.

renamed_classes?: Array<RenamedClass>

A list of classes with Durable Object namespaces that were renamed.

from?: string

to?: string

transferred_classes?: Array<TransferredClass>

A list of transfers for Durable Object namespaces from a different Worker and class to a class defined in this Worker.

from?: string

from_script?: string

to?: string

modules?: Array<Module>

Code, sourcemaps, and other content used at runtime.

This includes _headers and _redirects files used to configure Static Assets. _headers and _redirects files should be included as modules named _headers and _redirects with content type text/plain.

content_base64: string

The base64-encoded module content.

formatbyte

content_type: string

The content type of the module.

name: string

The name of the module.

placement?: Mode { mode } | Region { region } | Hostname { hostname } | 5 more

Configuration for Smart Placement. Specify mode=‘smart’ for Smart Placement, or one of region/hostname/host.

One of the following:

Mode { mode }

mode: "smart"

Enables Smart Placement.

Region { region }

region: string

Cloud region for targeted placement in format ‘provider:region’.

Hostname { hostname }

hostname: string

HTTP hostname for targeted placement.

Host { host }

host: string

TCP host and port for targeted placement.

UnionMember4 { mode, region }

mode: "targeted"

Targeted placement mode.

region: string

Cloud region for targeted placement in format ‘provider:region’.

UnionMember5 { hostname, mode }

hostname: string

HTTP hostname for targeted placement.

mode: "targeted"

Targeted placement mode.

UnionMember6 { host, mode }

host: string

TCP host and port for targeted placement.

mode: "targeted"

Targeted placement mode.

UnionMember7 { mode, target }

mode: "targeted"

Targeted placement mode.

target: Array<Region { region } | Hostname { hostname } | Host { host } >

Array of placement targets (currently limited to single target).

One of the following:

Region { region }

region: string

Cloud region in format ‘provider:region’.

Hostname { hostname }

hostname: string

HTTP hostname for targeted placement.

Host { host }

host: string

TCP host:port for targeted placement.

source?: string

The client used to create the version.

startup_time_ms?: number

Time in milliseconds spent on Worker startup.

Deprecatedusage_model?: "standard" | "bundled" | "unbound"

Usage model for the version.

One of the following:

"standard"

"bundled"

"unbound"

List Versions

TypeScript

HTTP

TypeScript

Python

Go

Terraform

import Cloudflare from 'cloudflare';

const client = new Cloudflare({
  apiToken: process.env['CLOUDFLARE_API_TOKEN'], // This is the default and can be omitted
});

// Automatically fetches more pages as needed.
for await (const version of client.workers.beta.workers.versions.list('worker_id', {
  account_id: '023e105f4ecef8ad9ca31a8372d0c353',
})) {
  console.log(version.id);
}

200 example

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "result": [
    {
      "id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
      "created_on": "2019-12-27T18:11:19.117Z",
      "number": 0,
      "urls": [
        "https://9387e76d-my-worker.my-subdomain.workers.dev"
      ],
      "annotations": {
        "workers/message": "Fixed bug.",
        "workers/tag": "v1.0.1",
        "workers/triggered_by": "upload"
      },
      "assets": {
        "config": {
          "html_handling": "auto-trailing-slash",
          "not_found_handling": "404-page",
          "run_worker_first": [
            "string"
          ]
        },
        "jwt": "jwt"
      },
      "bindings": [
        {
          "name": "MY_ENV_VAR",
          "text": "my_data",
          "type": "plain_text"
        }
      ],
      "compatibility_date": "2021-01-01",
      "compatibility_flags": [
        "nodejs_compat"
      ],
      "limits": {
        "cpu_ms": 50
      },
      "main_module": "index.js",
      "migration_tag": "v1",
      "migrations": {},
      "modules": [
        {
          "content_base64": "ZXhwb3J0IGRlZmF1bHQgewogIGFzeW5jIGZldGNoKHJlcXVlc3QsIGVudiwgY3R4KSB7CiAgICByZXR1cm4gbmV3IFJlc3BvbnNlKCdIZWxsbyBXb3JsZCEnKQogIH0KfQ==",
          "content_type": "application/javascript+module",
          "name": "index.js"
        }
      ],
      "placement": {
        "mode": "smart"
      },
      "source": "wrangler",
      "startup_time_ms": 10,
      "usage_model": "standard"
    }
  ],
  "success": true,
  "result_info": {
    "count": 1,
    "page": 1,
    "per_page": 20,
    "total_count": 2000,
    "total_pages": 100
  }
}

Returns Examples

200 example

{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "result": [
    {
      "id": "182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e",
      "created_on": "2019-12-27T18:11:19.117Z",
      "number": 0,
      "urls": [
        "https://9387e76d-my-worker.my-subdomain.workers.dev"
      ],
      "annotations": {
        "workers/message": "Fixed bug.",
        "workers/tag": "v1.0.1",
        "workers/triggered_by": "upload"
      },
      "assets": {
        "config": {
          "html_handling": "auto-trailing-slash",
          "not_found_handling": "404-page",
          "run_worker_first": [
            "string"
          ]
        },
        "jwt": "jwt"
      },
      "bindings": [
        {
          "name": "MY_ENV_VAR",
          "text": "my_data",
          "type": "plain_text"
        }
      ],
      "compatibility_date": "2021-01-01",
      "compatibility_flags": [
        "nodejs_compat"
      ],
      "limits": {
        "cpu_ms": 50
      },
      "main_module": "index.js",
      "migration_tag": "v1",
      "migrations": {},
      "modules": [
        {
          "content_base64": "ZXhwb3J0IGRlZmF1bHQgewogIGFzeW5jIGZldGNoKHJlcXVlc3QsIGVudiwgY3R4KSB7CiAgICByZXR1cm4gbmV3IFJlc3BvbnNlKCdIZWxsbyBXb3JsZCEnKQogIH0KfQ==",
          "content_type": "application/javascript+module",
          "name": "index.js"
        }
      ],
      "placement": {
        "mode": "smart"
      },
      "source": "wrangler",
      "startup_time_ms": 10,
      "usage_model": "standard"
    }
  ],
  "success": true,
  "result_info": {
    "count": 1,
    "page": 1,
    "per_page": 20,
    "total_count": 2000,
    "total_pages": 100
  }
}