# CodeBuildStartBuildBatchProps

Properties for CodeBuildStartBuildBatch.

Extends: CodeBuildStartBuildBatchProps
Extends: TaskStateBaseProps

- Source: [`aws-stepfunctions-tasks/lib/codebuild/start-build-batch.ts`](https://github.com/aws/aws-cdk/blob/v2.273.0/packages/aws-cdk-lib/aws-stepfunctions-tasks/lib/codebuild/start-build-batch.ts#L36)
- Type last changed: v2.234.0 · 8 Jan 2026

## Example

```ts
import * as codebuild from 'aws-cdk-lib/aws-codebuild';

const project = new codebuild.Project(this, 'Project', {
  projectName: 'MyTestProject',
  buildSpec: codebuild.BuildSpec.fromObjectToYaml({
    version: 0.2,
    batch: {
      'build-list': [
        {
          identifier: 'id',
          buildspec: 'version: 0.2\nphases:\n  build:\n    commands:\n      - echo "Hello, from small!"',
        },
      ],
    },
  }),
});
project.enableBatchBuilds();

const task = new tasks.CodeBuildStartBuildBatch(this, 'buildBatchTask', {
  project,
  integrationPattern: sfn.IntegrationPattern.REQUEST_RESPONSE,
  environmentVariablesOverride: {
    test: {
      type: codebuild.BuildEnvironmentVariableType.PLAINTEXT,
      value: 'testValue',
    },
  },
});
```

## Properties

- `assign`: { [key: string]: any } = Not assign variables — Workflow variables to store in this step.

  Using workflow variables, you can store data in a step and retrieve that data in future steps.

- `comment`: string = No comment — A comment describing this state.

- `credentials`: [Credentials](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Credentials.html) = None (Task is executed using the State Machine's execution role) — Credentials for an IAM Role that the State Machine assumes for executing the task.

  This enables cross-account resource invocations.

  **Default:** None (Task is executed using the State Machine's execution role)

- `environmentVariablesOverride`: { [key: string]: [BuildEnvironmentVariable](/cdk/api/v2/docs/aws-cdk-lib.aws_codebuild.BuildEnvironmentVariable.html) } = the latest environment variables already defined in the build project. — A set of environment variables to be used for this build only.

  **Default:** the latest environment variables already defined in the build project.

- `heartbeat`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) = None — use `heartbeatTimeout`

- `heartbeatTimeout`: [Timeout](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Timeout.html) = None — Timeout for the heartbeat.

  [disable-awslint:duration-prop-type] is needed because all props interface in
  aws-stepfunctions-tasks extend this interface

- `inputPath`: string = $ — JSONPath expression to select part of the state to be the input to this state.

  May also be the special value JsonPath.DISCARD, which will cause the effective
  input to be the empty object {}.

- `integrationPattern`: [IntegrationPattern](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.IntegrationPattern.html) = `IntegrationPattern.REQUEST_RESPONSE` for most tasks. `IntegrationPattern.RUN_JOB` for the following exceptions: `BatchSubmitJob`, `EmrAddStep`, `EmrCreateCluster`, `EmrTerminationCluster`, and `EmrContainersStartJobRun`. — AWS Step Functions integrates with services directly in the Amazon States Language.

  You can control these AWS services using service integration patterns.

  Depending on the AWS Service, the Service Integration Pattern availability will vary.

  **Default:** `IntegrationPattern.REQUEST_RESPONSE` for most tasks. `IntegrationPattern.RUN_JOB` for the following exceptions: `BatchSubmitJob`, `EmrAddStep`, `EmrCreateCluster`, `EmrTerminationCluster`, and `EmrContainersStartJobRun`.

- `outputPath`: string = $ — JSONPath expression to select part of the state to be the output to this state.

  May also be the special value JsonPath.DISCARD, which will cause the effective
  output to be the empty object {}.

- `outputs`: any = $states.result or $states.errorOutput — Used to specify and transform output from the state.

  When specified, the value overrides the state output default.
  The output field accepts any JSON value (object, array, string, number, boolean, null).
  Any string value, including those inside objects or arrays,
  will be evaluated as JSONata if surrounded by {% %} characters.
  Output also accepts a JSONata expression directly.

  **Default:** $states.result or $states.errorOutput

- `project`: [IProjectRef](/cdk/api/v2/docs/aws-cdk-lib.interfaces.aws_codebuild.IProjectRef.html) (required) — CodeBuild project to start.

- `queryLanguage`: [QueryLanguage](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.QueryLanguage.html) = JSONPath — The name of the query language used by the state.

  If the state does not contain a `queryLanguage` field,
  then it will use the query language specified in the top-level `queryLanguage` field.

- `resultPath`: string = $ — JSONPath expression to indicate where to inject the state's output.

  May also be the special value JsonPath.DISCARD, which will cause the state's
  input to become its output.

- `resultSelector`: { [key: string]: any } = None — The JSON that will replace the state's raw result and become the effective result before ResultPath is applied.

  You can use ResultSelector to create a payload with values that are static
  or selected from the state's raw result.

- `stateName`: string = The construct ID will be used as state name — Optional name for this state.

  **Default:** The construct ID will be used as state name

- `taskTimeout`: [Timeout](/cdk/api/v2/docs/aws-cdk-lib.aws_stepfunctions.Timeout.html) = None — Timeout for the task.

  [disable-awslint:duration-prop-type] is needed because all props interface in
  aws-stepfunctions-tasks extend this interface

- `timeout`: [Duration](/cdk/api/v2/docs/aws-cdk-lib.Duration.html) = None — use `taskTimeout`

## Used as props by

- [`CodeBuildStartBuildBatch`](/v2/docs/aws-cdk-lib.aws_stepfunctions_tasks.CodeBuildStartBuildBatch)