--- title: SDK Method Reference slug: devicepark/sdk-documentation/reference/sdk-methods description: Find exact Java, Node.js and .NET SDK method signatures. docTags: createdAt: 2026-08-10T08:03:44.631Z --- This page lists the public method names and return types of each SDK. Java methods are synchronous. Node.js and .NET service methods are asynchronous; every .NET method also accepts an optional trailing `CancellationToken`. Service accessors differ by language. Java and Node.js use methods (`client.devices()`); .NET uses properties (`client.Devices`). ## Client Creation | Operation | Java | Node.js | .NET | | ------------------- | ---------------------------------------- | ------------------------------------------ | ----------------------------------------- | | Start builder | `DeviceParkApiClient.builder()` | `DeviceParkApiClient.builder()` | `DeviceParkApiClient.Builder()` | | Set URL | `.url(String)` | `.url(string)` or `.endpoint(string)` | `.Url(string)` | | Set credentials | `.credentials(Credentials)` | `.credentials(Credentials)` | `.Credentials(Credentials)` | | Set raw credentials | `Credentials.of(clientId, clientSecret)` | `.credentialsFrom(clientId, clientSecret)` | `Credentials.Of(clientId, clientSecret)` | | Read environment | — | `Credentials.fromEnvironment()` | `Credentials.FromEnvironment()` | | Set timeout | `.timeout(Integer seconds)` | `.timeout(number)` or `.timeoutMs(number)` | `.Timeout(int seconds)` | | Add default header | — | `.addHeader(name, value)` | `.AddHeader(name, value)` | | Override transport | — | `.fetchImplementation(fetch)` | `.HttpMessageHandler(HttpMessageHandler)` | | Build | `.build()` | `.build()` | `.Build()` | | Release | `client.close()` | `await client.close()` | `using` declaration (`IDisposable`) | ## Devices | Purpose | Java signature | Node.js signature | .NET signature | | ------------------- | --------------------------------------------------------------- | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------- | | List | `PageDto list(ListDevicesRequest request)` | `list(request?: ListDevicesRequest): Promise>` | `ListAsync(ListDevicesRequest? request = null): Task>` | | Get by serial | `Device get(String serial)` | `get(serial: string): Promise` | `GetAsync(string serial): Task` | | List default pool | `PageDto listByDefaultPool(ListDevicesRequest request)` | `listByDefaultPool(request?: ListDevicesRequest): Promise>` | `ListByDefaultPoolAsync(ListDevicesRequest? request = null): Task>` | | List installed apps | Not available | `apps(serial: string, request?: ListDeviceAppsRequest): Promise>` | `AppsAsync(string serial, ListDeviceAppsRequest? request = null): Task>` | Access through `client.devices()` in Java and Node.js, `client.Devices` in .NET. Java and Node.js `listByDefaultPool(...)` and .NET `ListByDefaultPoolAsync` resolve the default pool first and then apply a `POOL_ID` filter. Any `POOL_ID` filter already present in the request is replaced. ## Pools | Purpose | Java signature | Node.js signature | .NET signature | | ------------------ | ----------------------------------------------------------------- | ----------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- | | List | `PageDto list(ListPoolsRequest request)` | `list(request?: ListPoolsRequest): Promise>` | `ListAsync(ListPoolsRequest? request = null): Task>` | | List default pools | Not available | `listByDefaultPool(request?: ListPoolsRequest): Promise>` | `ListByDefaultPoolAsync(ListPoolsRequest? request = null): Task>` | | Get default pool | `Pool getDefaultPool()` | — | `GetDefaultPoolAsync(): Task` | | Create | `Pool create(CreatePoolRequest request)` | `create(request: CreatePoolRequest): Promise` | `CreateAsync(CreatePoolRequest request): Task` | | Delete | `void delete(String poolId)` | `delete(poolId: string): Promise` | `DeleteAsync(string poolId): Task` | | Add devices | `List addDevices(String poolId, List serials)` | `addDevices(poolId: string, serials: string[]): Promise` | `AddDevicesAsync(string poolId, IReadOnlyList serials): Task>` | | Remove devices | `List removeDevices(String poolId, List serials)` | `removeDevices(poolId: string, serials: string[]): Promise` | `RemoveDevicesAsync(string poolId, IReadOnlyList serials): Task>` | Access through `client.pools()` in Java and Node.js, `client.Pools` in .NET. Node.js and .NET `listByDefaultPool(...)` return a page and apply the `IS_DEFAULT = true` filter automatically. Java `getDefaultPool()` and .NET `GetDefaultPoolAsync()` return a single `Pool` and raise an error when no default pool exists. ## Allocations | Purpose | Java signature | Node.js signature | .NET signature | | ------- | ----------------------------------------------------------- | ----------------------------------------------------------------------- | ------------------------------------------------------------------------------- | | List | `PageDto list(AllocationSearchRequest request)` | `list(request?: AllocationSearchRequest): Promise>` | `ListAsync(AllocationSearchRequest? request = null): Task>` | | Create | `Allocation create(DeviceAllocationRequest request)` | `create(request: DeviceAllocationRequest): Promise` | `CreateAsync(DeviceAllocationRequest request): Task` | | Release | `void delete(String allocationId)` | `delete(allocationId: string): Promise` | `DeleteAsync(string allocationId): Task` | Access through `client.allocations()` in Java and Node.js, `client.Allocations` in .NET. `delete` releases the reservation; it does not delete a physical device. ## Sessions | Purpose | Java signature | Node.js signature | .NET signature | | ------------------- | ---------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------ | | List | `PageDto list(DeviceSessionRequest request)` | `list(request?: DeviceSessionRequest): Promise>` | `ListAsync(DeviceSessionRequest? request = null): Task>` | | Start | `Session start(DeviceStartSessionRequest request)` | `start(request: DeviceStartSessionRequest): Promise` | `StartAsync(DeviceStartSessionRequest request): Task` | | Stop | `void stop(String sessionId)` | `stop(sessionId: string): Promise` | `StopAsync(string sessionId): Task` | | Screen stream URL | `String streamUrl(String sessionId)` | `streamUrl(sessionId: string): Promise` | Not available | | Download Appium log | `byte[] logs(String sessionId)` | `logs(sessionId: string): Promise` | `LogsAsync(string sessionId): Task` | | List recordings | `PageDto screenRecords(String sessionId, ScreenRecordPaginationRequest request)` | `screenRecords(sessionId: string, request?: ScreenRecordPaginationRequest): Promise>` | `ScreenRecordsAsync(string sessionId, ScreenRecordPaginationRequest? request = null): Task>` | Access through `client.sessions()` in Java and Node.js, `client.Sessions` in .NET. Java and Node.js `streamUrl(sessionId)` return a `wss` URL with the current access token appended as the `token` query parameter. Do not log that URL. See [Get Screen Stream URL](docId\:sMdrq_2Jfb0NIyvLPCtpD). ## Applications | Purpose | Java signature | Node.js signature | .NET signature | | --------------------------- | ----------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------- | | List | `PageDto list(ApplicationPaginationRequest request)` | `list(request?: ApplicationPaginationRequest): Promise>` | `ListAsync(ApplicationPaginationRequest? request = null): Task>` | | Standard upload | `Application upload(InputStream fileStream, String fileName, String version)` | `upload(fileStream, fileName: string, version: string): Promise` | `UploadAsync(Stream fileStream, string fileName, string version): Task` | | Upload with image injection | `Application upload(InputStream fileStream, String fileName, String version, boolean imageInjection)` | `upload(fileStream, fileName: string, version: string, imageInjection?: boolean): Promise` | `UploadAsync(Stream fileStream, string fileName, string version, bool imageInjection = false): Task` | | Delete | `void delete(String fileKey)` | `delete(fileKey: string): Promise` | `DeleteAsync(string fileKey): Task` | Access through `client.applications()` in Java and Node.js, `client.Applications` in .NET. Node.js accepts a Node.js `ReadableStream` or Web `ReadableStream`; .NET accepts any `System.IO.Stream`. `imageInjection` defaults to `false`. When enabled, Device Park applies the configured gadget injection during upload processing. ## Request Builders All three SDKs use the same builder fields. Only the construction syntax differs. | Language | How a builder is created | | -------- | -------------------------------------------------------------------- | | Java | `ListDevicesRequest.builder()` | | Node.js | `new ListDevicesRequestBuilder()` | | .NET | `new ListDevicesRequest.Builder()` (nested type, PascalCase methods) | | Builder | Key methods | | ------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `ListDevicesRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | | `ListDeviceAppsRequest` | Node.js and .NET: `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build`; Java: not available | | `ListPoolsRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | | `CreatePoolRequest` | Required `name`; `build` | | `AllocationSearchRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | | `DeviceAllocationRequest` | `serial`, `manufacturer`, `model`, `platform`, `platformVersion`, `devicePoolId`, `priority`, `removeApps`, `build` | | `DeviceSessionRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | | `DeviceStartSessionRequest` | Required `allocationId`, `userId`, `userEmail`, `companyId`, `companyName`; optional `companyPoolId`, `videoRecording`, `videoRecordingScope`, `customVideoRecordingPath`, `appiumVersion`; `build` | | `ScreenRecordPaginationRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | | `ApplicationPaginationRequest` | `page`, `size`, `sortBy`, `direction`, `addFilter`, `filters`, `build` | `videoRecordingScope` accepts `FULL_SESSION` or `APPIUM_SESSION` and defaults to `FULL_SESSION`. The Java, Node.js and .NET SDKs send this field. The Java builder includes the default value in the request body; Node.js omits it when unset and the API applies `FULL_SESSION`. Node.js and .NET validate the required `DeviceStartSessionRequest` fields during `build()`. Node.js and .NET return a copy from `build()`, so a builder can be reused safely. The three SDKs transmit filters for device, pool, application, allocation, session and screen-record lists. Node.js and .NET additionally support Device Apps filters. See [Pagination and Filtering](docId\:dGs4iHB5eEr5U28AOL8T_).