104 lines
2.3 KiB
JavaScript
104 lines
2.3 KiB
JavaScript
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const dbName = {
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openData: "opendb-open-data" // 数据库表名 - 缓存表
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}
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const db = uniCloud.database();
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const _ = db.command;
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var dao = {};
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/**
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* 获取
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let cacheInfo = await dao.opendbOpenData.get(key);
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*/
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dao.get = async (key) => {
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let res = await db.collection(dbName.openData).doc(key).get();
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let cacheInfo = res.data && res.data.length > 0 ? res.data[0] : null;
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if (!cacheInfo) {
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// 缓存不存在
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return null;
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}
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if (cacheInfo.expired > 0 && Date.now() > cacheInfo.expired) {
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// 缓存过期了
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return null;
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}
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// 缓存存在且未过期
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let value;
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try {
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value = JSON.parse(cacheInfo.value);
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} catch (err) {
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value = cacheInfo.value;
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}
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return value;
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};
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/**
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* 设置缓存
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await dao.opendbOpenData.set(key, value, expired);
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*/
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dao.set = async (key, value, expired = 0) => {
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if (expired > 0) {
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expired = Date.now() + expired * 1000;
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}
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let res = await db.collection(dbName.openData).doc(key).set({
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value: JSON.stringify(value),
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expired
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});
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return res.id ? res.id : null;
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};
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/**
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* 获取accessToken
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let cacheInfo = await dao.opendbOpenData.getAccessToken({
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appId: "wx123",
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platform: "weixin-mp"
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});
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*/
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dao.getAccessToken = async (key = {}) => {
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let { appId, platform } = key;
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let cacheKey = `uni-id:${platform}:${appId}:access-token`;
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return await dao.get(cacheKey);
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};
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/**
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* 获取accessToken
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await dao.opendbOpenData.setAccessToken({
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appId: "wx123",
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platform: "weixin-mp"
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}, value, expired);
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*/
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dao.setAccessToken = async (key, value, expired) => {
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let { appId, platform } = key;
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let cacheKey = `uni-id:${platform}:${appId}:access-token`;
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return await dao.set(cacheKey, value, expired);
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};
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/**
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* 获取sessionKey
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let cacheInfo = await dao.opendbOpenData.getSessionKey({
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appId: "wx123",
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platform: "weixin-mp",
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openid: "o123"
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});
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*/
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dao.getSessionKey = async (key = {}) => {
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let { appId, platform, openid } = key;
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let cacheKey = `uni-id:${platform}:${appId}:${openid}:session-key`;
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return await dao.get(cacheKey);
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};
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/**
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* 设置sessionKey
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await dao.opendbOpenData.setSessionKey({
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appId: "wx123",
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platform: "weixin-mp",
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openid: "o123"
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}, value, expired);
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*/
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dao.setSessionKey = async (key = {}, value, expired) => {
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let { appId, platform, openid } = key;
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let cacheKey = `uni-id:${platform}:${appId}:${openid}:session-key`;
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return await dao.set(cacheKey, value, expired);
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};
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module.exports = dao;
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