45 lines
1.5 KiB
JavaScript
45 lines
1.5 KiB
JavaScript
/*
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Copyright 2020 Bruno Windels <bruno@windels.cloud>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { iterateCursor, txnAsPromise } from "./utils.js";
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import { STORE_NAMES } from "../common.js";
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export async function exportSession(db) {
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const NOT_DONE = {done: false};
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const txn = db.transaction(STORE_NAMES, "readonly");
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const data = {};
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await Promise.all(STORE_NAMES.map(async name => {
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const results = data[name] = []; // initialize in deterministic order
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const store = txn.objectStore(name);
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await iterateCursor(store.openCursor(), (value) => {
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results.push(value);
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return NOT_DONE;
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});
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}));
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return data;
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}
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export async function importSession(db, data) {
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const txn = db.transaction(STORE_NAMES, "readwrite");
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for (const name of STORE_NAMES) {
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const store = txn.objectStore(name);
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for (const value of data[name]) {
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store.add(value);
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}
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}
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await txnAsPromise(txn);
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}
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