# IndexForSearch

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Messages](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/index.md)

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

Index for search.

- **Full name:** `MFiles.IndexForSearch`
- **Proto file:** [`mfiles/structs.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/structs.proto)

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## Fields

| Field | Type | Number | Description |
|---|---|---|---|
| <a id="f-name"></a>`name` | `string` | 1 | The exact name or prefix of the index to use on the server. If empty, indicates the default index. |
| <a id="f-search_engine"></a>`search_engine` | [`SearchEngine`](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/MFiles.SearchEngine/index.md) | 2 | Identifies the search engine. Values: `SEARCH_ENGINE_UNSPECIFIED` (0), `SEARCH_ENGINE_DT_SEARCH` (1), `SEARCH_ENGINE_IDOL` (2), `SEARCH_ENGINE_AZURE_SEARCH` (3), `SEARCH_ENGINE_SMART_SEARCH` (4), `SEARCH_ENGINE_AINO_SEARCH` (5), `SEARCH_ENGINE_GOLDFISH` (6). |

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## Used in fields

- [`VaultData.indexes_for_search`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.VaultData/index.md#f-indexes_for_search): Available indexes for searching.