@instantdb/core
Version:
Instant's core local abstraction
72 lines • 2.94 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
class IndexedDBStorage {
constructor(dbName) {
this.dbName = dbName;
this._storeName = 'kv';
this._dbPromise = this._init();
}
_init() {
return new Promise((resolve, reject) => {
const request = indexedDB.open(this.dbName, 1);
request.onerror = (event) => {
reject(event);
};
request.onsuccess = (event) => {
resolve(event.target.result);
};
request.onupgradeneeded = (event) => {
const db = event.target.result;
db.createObjectStore(this._storeName);
};
});
}
getItem(k) {
return __awaiter(this, void 0, void 0, function* () {
const db = yield this._dbPromise;
return new Promise((resolve, reject) => {
const transaction = db.transaction([this._storeName], 'readonly');
const objectStore = transaction.objectStore(this._storeName);
const request = objectStore.get(k);
request.onerror = (event) => {
reject(event);
};
request.onsuccess = (_event) => {
if (request.result) {
resolve(request.result);
}
else {
resolve(null);
}
};
});
});
}
setItem(k, v) {
return __awaiter(this, void 0, void 0, function* () {
const db = yield this._dbPromise;
return new Promise((resolve, reject) => {
const transaction = db.transaction([this._storeName], 'readwrite');
const objectStore = transaction.objectStore(this._storeName);
const request = objectStore.put(v, k);
request.onerror = (event) => {
reject(event);
};
request.onsuccess = (_event) => {
resolve();
};
});
});
}
}
exports.default = IndexedDBStorage;
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