Get full step output from instance

client.workflows.instances.step(, , , ?): InstanceStepResponse { error, status, output }

GET/accounts/{account_id}/workflows/{workflow_name}/instances/{instance_id}/step

Retrieves the full, untruncated output for a specific step on a workflow instance. Returns a flat status-shaped JSON body with step status (‘running’ | ‘waiting’ | ‘complete’ | ‘errored’), error (nullable), and output (the step value, or null while running/waiting/errored). When the step returned a ReadableStream from step.do, the response is served as ‘application/octet-stream’ with the raw bytes as the body instead of JSON. A status='running' response with non-null error indicates the step is currently retrying after a prior attempt failed.

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

workflowName: string

maxLength64

minLength1

instanceId: string

Instance identifier. User-created instances match ^[a-zA-Z0-9_][a-zA-Z0-9-_]*$ (max 100 characters); cron-triggered instances can use a longer, system-generated id derived from the cron expression.

maxLength271

minLength1

params: InstanceStepParams { account_id, name, type, attempt }

account_id: string

Path param

name: string

Query param: Exact step name from the instance logs response, including the generated counter suffix.

minLength1

type: "step" | "waitForEvent"

Query param: Step type to disambiguate step.do and waitForEvent entries that share the same name.

One of the following:

"step"

"waitForEvent"

attempt?: number

Query param: Specific attempt number to retrieve output or error for.

exclusiveMinimum

minimum0

ReturnsExpand Collapse

InstanceStepResponse { error, status, output }

error: Error | null

Error details when status=‘errored’; null otherwise.

message: string

name: string

status: "queued" | "running" | "paused" | 6 more

One of the following:

"queued"

"running"

"paused"

"errored"

"terminated"

"complete"

"waitingForPause"

"waiting"

"rollingBack"

output?: unknown

Full step output or waitForEvent payload without truncation. Sensitive outputs are returned as ‘[REDACTED]’. Populated when status=‘complete’. May be a ReadableStream when the step returned one from step.do; stream outputs are served as application/octet-stream rather than JSON.

Get full step output from instance

import Cloudflare from 'cloudflare';

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

const response = await client.workflows.instances.step('x', 'x', {
  account_id: 'account_id',
  name: 'x',
  type: 'step',
});

console.log(response.error);

{
  "errors": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "messages": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "result": {
    "error": {
      "message": "message",
      "name": "name"
    },
    "status": "queued",
    "output": {}
  },
  "success": true,
  "result_info": {
    "count": 0,
    "per_page": 0,
    "total_count": 0,
    "cursor": "cursor",
    "page": 0,
    "total_pages": 0
  }
}

Returns Examples

{
  "errors": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "messages": [
    {
      "code": 0,
      "message": "message"
    }
  ],
  "result": {
    "error": {
      "message": "message",
      "name": "name"
    },
    "status": "queued",
    "output": {}
  },
  "success": true,
  "result_info": {
    "count": 0,
    "per_page": 0,
    "total_count": 0,
    "cursor": "cursor",
    "page": 0,
    "total_pages": 0
  }
}