@xylabs/indexed-db

Base functionality used throughout XY Labs TypeScript/JavaScript libraries

Reference

@xylabs/indexed-db

Classes

• IndexedDbKeyValueStore

Interfaces

• ObjectStore

Type Aliases

• IndexDirection
• IndexDescription

Variables

• IndexSeparator

Functions

• buildStandardIndexName
• checkDbNeedsUpgrade
• createStoreDuringUpgrade
• getExistingIndexes
• withDb
• withDbByVersion
• withReadOnlyStore
• withReadWriteStore
• withStore

classes

IndexedDbKeyValueStore

@xylabs/indexed-db

An IndexedDB key/value store.

Type Parameters

T

T extends DBSchema

S

S extends StoreNames<T>

Implements

• KeyValueStore<StoreValue<T, S>, StoreKey<T, S>>

Constructors

Constructor

new IndexedDbKeyValueStore<T, S>(dbName, storeName): IndexedDbKeyValueStore<T, S>;

Parameters

dbName

string

storeName

S

Returns

IndexedDbKeyValueStore<T, S>

Properties

dbName

readonly dbName: string;

storeName

readonly storeName: S;

Methods

clear()?

optional clear(): Promise<void>;

Returns

Promise<void>

Implementation of

KeyValueStore.clear

delete()

delete(key): Promise<void>;

Parameters

key

StoreKey<T, S>

Returns

Promise<void>

Implementation of

KeyValueStore.delete

get()

get(key): Promise<undefined | StoreValue<T, S>>;

Returns a promise that resolves to the value for the given key.

Parameters

key

StoreKey<T, S>

The key to get the value for.

Returns

Promise<undefined | StoreValue<T, S>>

Implementation of

KeyValueStore.get

keys()?

optional keys(): Promise<StoreKey<T, S>[]>;

The keys an array of keys.

Returns

Promise<StoreKey<T, S>[]>

Implementation of

KeyValueStore.keys

set()

set(key, value): Promise<void>;

Parameters

key

StoreKey<T, S>

value

StoreValue<T, S>

Returns

Promise<void>

Implementation of

KeyValueStore.set

withDb()

withDb<R>(callback): Promise<R>;

Type Parameters

R

R = StoreValue<T, S>

Parameters

callback

(db) => R | Promise<R>

Returns

Promise<R>

functions

buildStandardIndexName

@xylabs/indexed-db

function buildStandardIndexName(index): string;

Given an index description, this will build the index name in standard form

Parameters

index

IndexDescription

The index description

Returns

string

The index name in standard form

checkDbNeedsUpgrade

@xylabs/indexed-db

function checkDbNeedsUpgrade(
   dbName, 
   stores, 
logger?): Promise<number>;

Parameters

dbName

string

stores

Record<string, IndexDescription[]>

logger?

Logger

Returns

Promise<number>

createStoreDuringUpgrade

@xylabs/indexed-db

function createStoreDuringUpgrade<DBTypes>(
   db, 
   storeName, 
   indexes, 
   logger?): void;

Type Parameters

DBTypes

DBTypes extends unknown = unknown

Parameters

db

IDBPDatabase<DBTypes>

storeName

StoreNames<DBTypes>

indexes

IndexDescription[]

logger?

Logger

Returns

void

getExistingIndexes

@xylabs/indexed-db

function getExistingIndexes<T>(
   db, 
   storeName, 
logger?): Promise<null | IndexDescription[]>;

Type Parameters

T

T extends object = object

Parameters

db

string | IDBPDatabase<ObjectStore<T>>

storeName

StoreNames<ObjectStore<T>>

logger?

Logger

Returns

Promise<null | IndexDescription[]>

withDb

@xylabs/indexed-db

function withDb<DBTypes, R>(
   dbName, 
   callback, 
   expectedIndexes?, 
   logger?, 
lock?): Promise<R>;

Type Parameters

DBTypes

DBTypes extends unknown = unknown

R

R = object

Parameters

dbName

string

callback

(db) => R | Promise<R>

expectedIndexes?

Record<string, IndexDescription[]>

logger?

Logger

lock?

boolean = true

Returns

Promise<R>

withDbByVersion

@xylabs/indexed-db

function withDbByVersion<DBTypes, R>(
   dbName, 
   callback, 
   version?, 
   expectedIndexes?, 
   logger?, 
lock?): Promise<R>;

Type Parameters

DBTypes

DBTypes extends unknown = unknown

R

R = object

Parameters

dbName

string

callback

(db) => R | Promise<R>

version?

number

expectedIndexes?

Record<string, IndexDescription[]>

logger?

Logger

lock?

boolean = true

Returns

Promise<R>

withReadOnlyStore

@xylabs/indexed-db

function withReadOnlyStore<T, R>(
   db, 
   storeName, 
   callback, 
logger?): Promise<R>;

Type Parameters

T

T extends object = object

R

R = T

Parameters

db

IDBPDatabase<ObjectStore<T>>

storeName

StoreNames<ObjectStore<T>>

callback

(store) => R | Promise<R>

logger?

Logger

Returns

Promise<R>

withReadWriteStore

@xylabs/indexed-db

function withReadWriteStore<T, R>(
   db, 
   storeName, 
   callback, 
logger?): Promise<R>;

Type Parameters

T

T extends object = object

R

R = T

Parameters

db

IDBPDatabase<ObjectStore<T>>

storeName

StoreNames<ObjectStore<T>>

callback

(store) => R | Promise<R>

logger?

Logger

Returns

Promise<R>

withStore

@xylabs/indexed-db

function withStore<T, R, M>(
   db, 
   storeName, 
   callback, 
   mode, 
logger?): Promise<R>;

Type Parameters

T

T extends object = object

R

R = T

M

M extends "readonly" | "readwrite" = "readonly"

Parameters

db

IDBPDatabase<ObjectStore<T>>

storeName

StoreNames<ObjectStore<T>>

callback

(store) => R | Promise<R>

mode

M

logger?

Logger

Returns

Promise<R>

interfaces

ObjectStore

@xylabs/indexed-db

Type Parameters

T

T extends EmptyObject = EmptyObject

Indexable

[s: string]: T

type-aliases

IndexDescription

@xylabs/indexed-db

type IndexDescription = object;

Description of index(es) to be created on a store

Properties

key

key: Record<string, IndexDirection>;

The key(s) to index

multiEntry?

optional multiEntry: boolean;

Is the indexed value an array

unique?

optional unique: boolean;

If true, the index must enforce uniqueness on the key

IndexDirection

@xylabs/indexed-db

type IndexDirection = -1 | 1;

The index direction (1 for ascending, -1 for descending)

variables

IndexSeparator

@xylabs/indexed-db

const IndexSeparator: "-" = '-';

Part of sdk-js

Maintainers

• Arie Trouw (arietrouw.com)
• Matt Jones
• Joel Carter
• Jordan Trouw

License

See the LICENSE file for license details

Credits

Made with 🔥 and ❄️ by XYLabs