# IRPCServerAdmin.GetPerformanceMeasurementsAsJSON

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Administration API](https://developer.m-files.com/APIs/gRPC-API/admin/index.md) > [Server administration](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCServerAdmin/index.md)

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

Badges: `Administration API / specialized` `admin` `session` `idempotent`

Gets the current results of a vault database performance measurement as JSON.

- **Service:** [Server administration](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCServerAdmin/index.md) `MFiles.IRPCServerAdmin`
- **gRPC method:** `/MFiles.IRPCServerAdmin/GetPerformanceMeasurementsAsJSON`
- **HTTP (mf-http-grpc):** `POST /grpc/v1/get-performance-measurements-as-json`
- **Request:** [`GetPerformanceMeasurementsAsJSONRequest`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCServerAdmin/GetPerformanceMeasurementsAsJSON/index.md#request)
- **Response:** [`GetPerformanceMeasurementsAsJSONResponse`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCServerAdmin/GetPerformanceMeasurementsAsJSON/index.md#response)
- **Book and level:** Administration API, specialized
- **Kind:** admin
- **Session:** Required: the session ID from LogIn in the mfiles-session-id-bin metadata.
- **Idempotent:** yes
- **Returns metadata structure version:** no
- **Streaming:** none (unary)

<a id="remarks"></a>

## Remarks

- Requires a vault session with the vault right `change_full_control_role`. Without it the call
  fails with "Access denied." ; a server-level session fails
  with "Login required.".
- An unknown or ended measurement ID fails with "Not found.".
- The JSON format is that of M-Files Admin's vault information page and is not otherwise
  documented.

<a id="request"></a>

## Request: GetPerformanceMeasurementsAsJSONRequest

> 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 |
|---|---|---|
| `background_op_id` | `int32` | The ID returned by [BeginPerformanceMeasurementsAsJSON](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCServerAdmin/BeginPerformanceMeasurementsAsJSON/index.md). |

<a id="response"></a>

## Response: GetPerformanceMeasurementsAsJSONResponse

> 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 |
|---|---|---|
| `results_as_json_` | `string` | The measurement results as a JSON document. |