IndexDBFileSystemStorageAdapter

IndexDBFileSystemStorageAdapter implements LocalStorageAdapter using IndexedDB. Suitable for web browsers and web-based environments.

Implements

• LocalStorageAdapter

Constructors

Constructor

new IndexDBFileSystemStorageAdapter(databaseName?): IndexDBFileSystemStorageAdapter;

Parameters

Parameter	Type	Default value
databaseName	string	'PowerSyncFiles'

Returns

IndexDBFileSystemStorageAdapter

Methods

clear()

clear(): Promise<void>;

Clears all files in the storage.

Returns

Promise<void>

Implementation of

LocalStorageAdapter.clear

---

deleteFile()

deleteFile(uri, options?): Promise<void>;

Deletes the file at the given path.

Parameters

Parameter	Type
uri	string
options?	{ filename?: string; }
options.filename?	string

Returns

Promise<void>

Implementation of

LocalStorageAdapter.deleteFile

---

fileExists()

fileExists(fileUri): Promise<boolean>;

Checks if a file exists at the given path.

Parameters

Parameter	Type
fileUri	string

Returns

Promise<boolean>

True if the file exists, false otherwise

Implementation of

LocalStorageAdapter.fileExists

---

getLocalUri()

getLocalUri(filename): string;

Returns the file path for the provided filename in the storage directory.

Parameters

Parameter	Type	Description
filename	string	The filename to get the path for

Returns

string

The full file path

Implementation of

LocalStorageAdapter.getLocalUri

---

initialize()

initialize(): Promise<void>;

Initializes the storage adapter (e.g., creating necessary directories).

Returns

Promise<void>

Implementation of

LocalStorageAdapter.initialize

---

makeDir()

makeDir(path): Promise<void>;

Creates a directory at the specified path.

Parameters

Parameter	Type	Description
path	string	The full path to the directory

Returns

Promise<void>

Implementation of

LocalStorageAdapter.makeDir

---

readFile()

readFile(fileUri, options?): Promise<ArrayBuffer>;

Retrieves file data as an ArrayBuffer.

Parameters

Parameter	Type
fileUri	string
options?	{ encoding?: EncodingType; mediaType?: string; }
options.encoding?	EncodingType
options.mediaType?	string

Returns

Promise<ArrayBuffer>

ArrayBuffer containing the file data

Implementation of

LocalStorageAdapter.readFile

---

rmDir()

rmDir(path): Promise<void>;

Removes a directory at the specified path.

Parameters

Parameter	Type	Description
path	string	The full path to the directory

Returns

Promise<void>

Implementation of

LocalStorageAdapter.rmDir

---

saveFile()

saveFile(filePath, data): Promise<number>;

Saves data to a local file.

Parameters

Parameter	Type	Description
filePath	string	Path where the file will be stored
data	AttachmentData	Data to store (ArrayBuffer, Blob, or string)

Returns

Promise<number>

Number of bytes written

Implementation of

LocalStorageAdapter.saveFile