# IRPCApplicationTaskQueue.GetTaskIdentifiersFromQueue

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Server integration API](https://developer.m-files.com/APIs/gRPC-API/integration/index.md) > [Application task queue](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCApplicationTaskQueue/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCApplicationTaskQueue/GetTaskIdentifiersFromQueue/

Badges: `Server integration API / specialized` `write` `session`

Gets the IDs of the tasks of a queue that are in the given states.

- **Service:** [Application task queue](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCApplicationTaskQueue/index.md) `MFiles.IRPCApplicationTaskQueue`
- **gRPC method:** `/MFiles.IRPCApplicationTaskQueue/GetTaskIdentifiersFromQueue`
- **HTTP (mf-http-grpc):** `POST /grpc/v1/get-task-identifiers-from-queue`
- **Request:** [`GetTaskIdentifiersFromQueueRequest`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCApplicationTaskQueue/GetTaskIdentifiersFromQueue/index.md#request)
- **Response:** [`GetTaskIdentifiersFromQueueResponse`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCApplicationTaskQueue/GetTaskIdentifiersFromQueue/index.md#response)
- **Book and level:** Server integration API, specialized
- **Kind:** write
- **Session:** Required: the session ID from LogIn in the mfiles-session-id-bin metadata.
- **Idempotent:** no
- **Returns metadata structure version:** no
- **Streaming:** none (unary)

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## Remarks

- For diagnostics; reserves nothing. An unknown queue returns an empty list.
- Requires a vault session and the vault right `change_full_control_role`.

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## Request: GetTaskIdentifiersFromQueueRequest

> Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

| Field | Type | Description |
|---|---|---|
| `queue_id` | `string` | The ID of the queue. |
| `included_states` | `string` | The states to include, as a comma-separated list of [ApplicationTaskState](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/MFiles.ApplicationTaskState/index.md) numbers, for example `0,1` for waiting and in progress. Must not be empty and must not repeat a state; otherwise the call fails with "The parameter is incorrect.". |

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## Response: GetTaskIdentifiersFromQueueResponse

> Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

| Field | Type | Description |
|---|---|---|
| `task_id_collection[]` | repeated `string` | The IDs of the matching tasks. |