IndexedDB for Deno

A strongly-typed wrapper of non-invasive IndexedDBShim v9.0.0 to provide IndexedDB either as a ponyfill, or as polyfill in the globalThis scope.

Usage

Ponyfill is the recommended module type, as this allows the use of IndexedDB without mutating the global scope. Only use polyfill if you need indexedDB in the global scope, such as importing external modules into your project which expect it to be available globally.

Ponyfill

Persistent

import { indexedDB } from 'https://deno.land/x/indexeddb@v1.0.0/ponyfill.ts'

In-memory

import { indexedDB } from 'https://deno.land/x/indexeddb@v1.0.0/ponyfill_memory.ts'

Polyfill

Polyfill modules will add indexedDB to globalThis, and declare indexedDB and interface IDBFactory in the global type scope.

Persistent

import 'https://deno.land/x/indexeddb@v1.0.0/polyfill.ts'

In-memory

import 'https://deno.land/x/indexeddb@v1.0.0/polyfill_memory.ts'

Documentation

Please see Mozilla Developer Network for complete documentation; keep in mind that sync operations are not supported.

How it works

This library wraps IndexedDBShim into a callable function with work-arounds to prevent the shim from being added to the global scope. A WebSQL ponyfill is passed to the shim code and acts as the underlying SQLite API for IndexedDB.

Types are taken almost verbatim from TypeScript DOM lib; however, the real polyfilled objects and classes are not available until createIndexedDB is called, and then only if polyfilled.

A note if using shim.ts directly; the wrapper creates WebSQL instances in-memory by default. Before calling createIndexedDB, call configureSQLiteDB with the memory: false option to persist to disk.