--- layout: "docs" page_title: "dispatch_payload Stanza - Job Specification" sidebar_current: "docs-job-specification-dispatch-payload" description: |- The "dispatch_payload" stanza allows a task to access dispatch payloads. to --- # `dispatch_payload` Stanza
Placement job -> group -> task -> **dispatch_payload**
The `dispatch_payload` stanza is used in conjuction with a [`parameterized`][parameterized] job that expects a payload. When the job is dispatched with a payload, the payload will be made available to any task that has a `dispatch_payload` stanza. The payload will be written to the configured file before the task is started. This allows the task to use the payload as input or configuration. ```hcl job "docs" { group "example" { task "server" { dispatch_payload { file = "config.json" } } } } ``` ## `dispatch_payload` Parameters - `file` `(string: "")` - Specifies the file name to write the content of dispatch payload to. The file is written relative to the [task's local directory][localdir]. ## `dispatch_payload` Examples The following examples only show the `dispatch_payload` stanzas. Remember that the `dispatch_payload` stanza is only valid in the placements listed above. ### Write Payload to a File This example shows a `dispatch_payload` block in a parameterized job that writes the payload to a `config.json` file. ```hcl dispatch_payload { file = "config.json" } ``` [localdir]: /docs/runtime/environment.html#local_ "Task Local Directory" [parameterized]: /docs/job-specification/parameterized.html "Nomad parameterized Job Specification"