94 lines
3.2 KiB
Markdown
94 lines
3.2 KiB
Markdown
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# Breaking changes in 8.x
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- Finally dropped support for old EdgeHTML engine.
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- Dropped support for browsers that don't support [`cursor.request`](https://caniuse.com/mdn-api_idbcursor_request).
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- Removed separate async iterators build. It's now one build with async iterator support.
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# Breaking changes in 7.x
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- No longer committing `build` to GitHub.
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- Renamed files in dist.
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- Added conditional exports.
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- iife build is now a umd.
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# Breaking changes in 6.x
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Some TypeScript definitions changed so write-methods are missing from 'readonly' transactions. This might be backwards-incompatible with code that performs a lot of type wrangling.
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# Breaking changes in 5.x
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I moved some files around, so I bumped the major version for safety.
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# Changes in 4.x
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## Breaking changes
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### Opening a database
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```js
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// Old 3.x way
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import { openDb } from 'idb';
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openDb('db-name', 1, (upgradeDb) => {
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console.log(upgradeDb.oldVersion);
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console.log(upgradeDb.transaction);
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});
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```
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```js
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// New 4.x way
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import { openDB } from 'idb';
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openDB('db-name', 1, {
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upgrade(db, oldVersion, newVersion, transaction) {
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console.log(oldVersion);
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console.log(transaction);
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},
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});
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```
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- `openDb` and `deleteDb` were renamed `openDB` and `deleteDB` to be more consistent with DOM naming.
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- The signature of `openDB` changed. The third parameter used to be the upgrade callback, it's now an option object which can include an `upgrade` method.
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- There's no `UpgradeDB` anymore. You get the same database `openDB` resolves with. Versions numbers and the upgrade transaction are included as additional parameters.
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### Promises & throwing
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The library turns all `IDBRequest` objects into promises, but it doesn't know in advance which methods may return promises.
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As a result, methods such as `store.put` may throw instead of returning a promise.
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If you're using async functions, there isn't a difference.
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### Other breaking changes
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- `iterateCursor` and `iterateKeyCursor` have been removed. These existed to work around browsers microtask issues which have since been fixed. Async iterators provide similar functionality.
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- All pseudo-private properties (those beginning with an underscore) are gone. Use `unwrap()` to get access to bare IDB objects.
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- `transaction.complete` was renamed to `transaction.done` to be shorter and more consistent with the DOM.
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- `getAll` is no longer polyfilled on indexes and stores.
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- The library no longer officially supports IE11.
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## New stuff
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- The library now uses proxies, so objects will include everything from their plain-IDB equivalents.
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- TypeScript support has massively improved, including the ability to provide types for your database.
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- Optional support for async iterators, which makes handling cursors much easier.
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- Database objects now have shortcuts for single actions (like `get`, `put`, `add`, `getAll` etc etc).
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- For transactions that cover a single store `transaction.store` is a reference to that store.
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- `openDB` lets you add callbacks for when your database is blocking another connection, or when you're blocked by another connection.
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# Changes in 3.x
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The library became a module.
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```js
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// Old 2.x way:
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import idb from 'idb';
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idb.open(…);
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idb.delete(…);
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// 3.x way:
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import { openDb, deleteDb } from 'idb';
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openDb(…);
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deleteDb(…);
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```
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