# IRPCLogin.ResolveMaturityOfFeature

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Vault API](https://developer.m-files.com/APIs/gRPC-API/vault/index.md) > [Login and sessions](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCLogin/index.md)

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

Badges: `Vault API / core` `session` `no session`

Returns which of the named server feature flags are enabled on this server.

- **Service:** [Login and sessions](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCLogin/index.md) `MFiles.IRPCLogin`
- **gRPC method:** `/MFiles.IRPCLogin/ResolveMaturityOfFeature`
- **HTTP (mf-http-grpc):** `POST /grpc/v1/resolve-maturity-of-feature`
- **Request:** [`ResolveMaturityOfFeatureRequest`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCLogin/ResolveMaturityOfFeature/index.md#request)
- **Response:** [`ResolveMaturityOfFeatureResponse`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCLogin/ResolveMaturityOfFeature/index.md#response)
- **Book and level:** Vault API, core
- **Kind:** session
- **Session:** Not needed: the call can be made before logging in.
- **Idempotent:** no
- **Returns metadata structure version:** no
- **Streaming:** none (unary)

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## Remarks

Used by M-Files clients to align their behavior with the server; applications rarely need it.
Unknown flag names are left out of the response.

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## Request: ResolveMaturityOfFeatureRequest

> 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 |
|---|---|---|
| `feature_flags[]` | repeated `string` | FeatureFlags to be resolved. |

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## Response: ResolveMaturityOfFeatureResponse

> 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 |
|---|---|---|
| `matured_feature_flags[]` | repeated `string` | Receives the list of matured feature flags. |