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AsyncMemoryStorage class

This class allows MSAL to store artifacts asynchronously using the DatabaseStorage IndexedDB wrapper, backed up with the more volatile MemoryStorage object for cases in which IndexedDB may be unavailable.

Constructors

AsyncMemoryStorage(Logger, string)

Methods

clearInMemory()

Clears in-memory Map

clearPersistent()

Tries to delete the IndexedDB database

containsKey(string)

Returns true or false if the given key is present in the cache.

getItem(string)

Get the item matching the given key. Tries in-memory cache first, then in the asynchronous storage object if item isn't found in-memory.

getKeys()

Get all the keys from the in-memory cache as an iterable array of strings. If no keys are found, query the keys in the asynchronous storage object.

removeItem(string)

Removes the item matching the key from the in-memory cache, then tries to remove it from the asynchronous storage object.

setItem(string, T)

Sets the item in the in-memory cache and then tries to set it in the asynchronous storage object with the given key.

Constructor Details

AsyncMemoryStorage(Logger, string)

new AsyncMemoryStorage(logger: Logger, storeName: string)

Parameters

logger

Logger

storeName

string

Method Details

clearInMemory()

Clears in-memory Map

function clearInMemory()

clearPersistent()

Tries to delete the IndexedDB database

function clearPersistent(): Promise<boolean>

Returns

Promise<boolean>

containsKey(string)

Returns true or false if the given key is present in the cache.

function containsKey(key: string): Promise<boolean>

Parameters

key

string

Returns

Promise<boolean>

getItem(string)

Get the item matching the given key. Tries in-memory cache first, then in the asynchronous storage object if item isn't found in-memory.

function getItem(key: string): Promise<T | null>

Parameters

key

string

Returns

Promise<T | null>

getKeys()

Get all the keys from the in-memory cache as an iterable array of strings. If no keys are found, query the keys in the asynchronous storage object.

function getKeys(): Promise<string[]>

Returns

Promise<string[]>

removeItem(string)

Removes the item matching the key from the in-memory cache, then tries to remove it from the asynchronous storage object.

function removeItem(key: string): Promise<void>

Parameters

key

string

Returns

Promise<void>

setItem(string, T)

Sets the item in the in-memory cache and then tries to set it in the asynchronous storage object with the given key.

function setItem(key: string, value: T): Promise<void>

Parameters

key

string

value

T

Returns

Promise<void>