# [`oro:platform`](/runtime/docs/javascript/platform/)

Discover compiled native backends before offering a platform-dependent operation. An implemented backend still requires its own runtime support, permission, hardware, and configuration checks.

## Related guides

- [Native platform services](/runtime/docs/guides/native-platform-services/)
- [Runtime 0.2 releases](/runtime/docs/guides/releases-0-2/)

## Examples

Inspect a backend without opening a prompt:

```js
import platform from 'oro:platform'

const support = await platform.getSupport('foreground')
console.log(support.platform, support.implementation, support.reason)
// If implemented, call the executor's own getSupport() before starting work.
```

## API reference

<!-- GENERATED: ORO_API_REFERENCE_START -->

### Module specifiers

```text
oro:platform
```

### TypeScript declarations

These declarations are generated from the runtime's published TypeScript surface.

#### [`oro:platform`](/runtime/docs/javascript/platform/)

```ts
declare module "oro:platform" {
    /**
     * @typedef {object} PlatformRequestOptions
     * @property {AbortSignal} [signal] Abort native work and discard a late result.
     */
    /**
     * Invokes a narrowly named native operation with a JSON object payload. Requests
     * require a foreground interactive document, expire after 90 seconds and share
     * native capacity limits. Results are limited to 512 KiB. The extension must
     * implement its own feature authorization; trusted origin is not server IAM.
     * Unregistered extensions and unimplemented platforms reject with ENOSYS.
     * @param {string} extension Configured extension name.
     * @param {string} action Operation name.
     * @param {object} [payload]
     * @param {PlatformRequestOptions} [options]
     * @returns {Promise<any>}
     */
    export function request(extension: string, action: string, payload?: object, options?: PlatformRequestOptions): Promise<any>;
    /**
     * @typedef {'authentication'|'credentials'|'foreground'|'foreground.continuous'|'deferred'|'push'|'launcher'|'extension'|'back'|'gestures'|'notifications'|'records'|'coordination'|'secure-storage'|'background'|'workflows'} PlatformFeature
     */
    /**
     * @typedef {object} PlatformFeatureSupport
     * @property {number} schema Descriptor schema version, currently 1.
     * @property {'android'|'ios'|'macos'|'linux'|'windows'|'unknown'} platform iPadOS uses the ios backend.
     * @property {PlatformFeature} feature
     * @property {'implemented'|'missing'|'restricted'} implementation Missing is unimplemented runtime work; restricted is a platform API limitation.
     * @property {string} backend Native implementation family, empty when absent.
     * @property {string} reason Stable unavailable reason, empty for an implemented backend.
     * @property {boolean} requiresRuntimeCheck An implemented backend still needs the feature's runtime support, permission, hardware and configuration checks.
     */
    /**
     * @typedef {object} PlatformCapabilities
     * @property {number} schema Currently 1.
     * @property {string} platform
     * @property {Object<string, PlatformFeatureSupport>} features Inventory of the new native operation interfaces. This does not describe every existing Oro API.
     */
    /**
     * Reads the compiled backend inventory on every platform without prompting,
     * loading extensions or accessing saved data. An implemented backend is not
     * proof of hardware, OS admission, current permission or device qualification.
     * @returns {Promise<PlatformCapabilities>}
     */
    export function getCapabilities(): Promise<PlatformCapabilities>;
    /**
     * Reads one compiled native feature descriptor without prompting. Query the
     * feature's own support/status API before starting an operation. Missing and
     * OS-restricted features are separate results; operational calls still reject.
     * @param {PlatformFeature} feature
     * @returns {Promise<PlatformFeatureSupport>}
     */
    export function getSupport(feature: PlatformFeature): Promise<PlatformFeatureSupport>;
    namespace _default {
        export { request };
        export { getCapabilities };
        export { getSupport };
    }
    export default _default;
    export type PlatformRequestOptions = {
        /**
         * Abort native work and discard a late result.
         */
        signal?: AbortSignal;
    };
    export type PlatformFeature = "authentication" | "credentials" | "foreground" | "foreground.continuous" | "deferred" | "push" | "launcher" | "extension" | "back" | "gestures" | "notifications" | "records" | "coordination" | "secure-storage" | "background" | "workflows";
    export type PlatformFeatureSupport = {
        /**
         * Descriptor schema version, currently 1.
         */
        schema: number;
        /**
         * iPadOS uses the ios backend.
         */
        platform: "android" | "ios" | "macos" | "linux" | "windows" | "unknown";
        feature: PlatformFeature;
        /**
         * Missing is unimplemented runtime work; restricted is a platform API limitation.
         */
        implementation: "implemented" | "missing" | "restricted";
        /**
         * Native implementation family, empty when absent.
         */
        backend: string;
        /**
         * Stable unavailable reason, empty for an implemented backend.
         */
        reason: string;
        /**
         * An implemented backend still needs the feature's runtime support, permission, hardware and configuration checks.
         */
        requiresRuntimeCheck: boolean;
    };
    export type PlatformCapabilities = {
        /**
         * Currently 1.
         */
        schema: number;
        platform: string;
        /**
         * Inventory of the new native operation interfaces. This does not describe every existing Oro API.
         */
        features: {
            [x: string]: PlatformFeatureSupport;
        };
    };
}
```

<!-- GENERATED: ORO_API_REFERENCE_END -->

## See also

- [JavaScript APIs overview](/runtime/docs/javascript/overview/)
- [All module specifiers](/runtime/docs/javascript/all-modules/)