---
title: "Context"
description: "Get the context of a task run."
---

Context (`ctx`) is a way to get information about a run. 

<Note>
The context object does not change whilst your code is executing. This means values like `ctx.run.durationMs` will be fixed at the moment the `run()` function is called.
</Note>

<RequestExample>

```typescript Context example
import { task } from "@trigger.dev/sdk/v3";

export const parentTask = task({
  id: "parent-task",
  run: async (payload: { message: string }, { ctx }) => {
    
    if (ctx.environment.type === "DEVELOPMENT") {
      return;
    }
  },
});
```

</RequestExample>

## Context properties

<ResponseField name="task" type="object">
  <Expandable title="properties" defaultOpen={true}>
    <ResponseField name="exportName" type="string">
      The exported function name of the task e.g. `myTask` if you defined it like this: `export const myTask = task(...)`.
    </ResponseField>
    <ResponseField name="id" type="string">
      The ID of the task.
    </ResponseField>
    <ResponseField name="filePath" type="string">
      The file path of the task.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="attempt" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the execution attempt.
    </ResponseField>
    <ResponseField name="number" type="number">
      The attempt number.
    </ResponseField>
    <ResponseField name="startedAt" type="date">
      The start time of the attempt.
    </ResponseField>
    <ResponseField name="backgroundWorkerId" type="string">
      The ID of the background worker.
    </ResponseField>
    <ResponseField name="backgroundWorkerTaskId" type="string">
      The ID of the background worker task.
    </ResponseField>
    <ResponseField name="status" type="string">
      The current status of the attempt.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="run" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the task run.
    </ResponseField>
    <ResponseField name="context" type="any" optional>
      The context of the task run.
    </ResponseField>
    <ResponseField name="tags" type="array">
      An array of [tags](/tags) associated with the task run.
    </ResponseField>
    <ResponseField name="isTest" type="boolean">
      Whether this is a [test run](/run-tests).
    </ResponseField>
    <ResponseField name="createdAt" type="date">
      The creation time of the task run.
    </ResponseField>
    <ResponseField name="startedAt" type="date">
      The start time of the task run.
    </ResponseField>
    <ResponseField name="idempotencyKey" type="string" optional>
      An optional [idempotency key](/idempotency) for the task run.
    </ResponseField>
    <ResponseField name="maxAttempts" type="number" optional>
      The [maximum number of attempts](/triggering#maxattempts) allowed for this task run.
    </ResponseField>
    <ResponseField name="durationMs" type="number">
      The duration of the task run in milliseconds when the `run()` function is called. For live values use the [usage SDK functions](/run-usage).
    </ResponseField>
    <ResponseField name="costInCents" type="number">
      The cost of the task run in cents when the `run()` function is called. For live values use the [usage SDK functions](/run-usage).
    </ResponseField>
    <ResponseField name="baseCostInCents" type="number">
      The base cost of the task run in cents when the `run()` function is called. For live values use the [usage SDK functions](/run-usage).
    </ResponseField>
    <ResponseField name="version" type="string" optional>
      The [version](/versioning) of the task run.
    </ResponseField>
    <ResponseField name="maxDuration" type="number" optional>
      The [maximum allowed duration](/runs/max-duration) for the task run.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="queue" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the queue.
    </ResponseField>
    <ResponseField name="name" type="string">
      The name of the queue.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="environment" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the environment.
    </ResponseField>
    <ResponseField name="slug" type="string">
      The slug of the environment.
    </ResponseField>
    <ResponseField name="type" type="string">
      The type of the environment (PRODUCTION, STAGING, DEVELOPMENT, or PREVIEW).
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="organization" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the organization.
    </ResponseField>
    <ResponseField name="slug" type="string">
      The slug of the organization.
    </ResponseField>
    <ResponseField name="name" type="string">
      The name of the organization.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="project" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the project.
    </ResponseField>
    <ResponseField name="ref" type="string">
      The reference of the project.
    </ResponseField>
    <ResponseField name="slug" type="string">
      The slug of the project.
    </ResponseField>
    <ResponseField name="name" type="string">
      The name of the project.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="batch" type="object" optional>
  Optional information about the batch, if applicable.
  <Expandable title="properties">
    <ResponseField name="id" type="string">
      The ID of the batch.
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="machine" type="object" optional>
  Optional information about the machine preset used for execution.
  <Expandable title="properties">
    <ResponseField name="name" type="string">
      The name of the machine preset.
    </ResponseField>
    <ResponseField name="cpu" type="number">
      The CPU allocation for the machine.
    </ResponseField>
    <ResponseField name="memory" type="number">
      The memory allocation for the machine.
    </ResponseField>
    <ResponseField name="centsPerMs" type="number">
      The cost in cents per millisecond for this machine preset.
    </ResponseField>
  </Expandable>
</ResponseField>
