jketreno/whisky
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Cache check older than one day working in whisky.js

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Signed-off-by: James Ketrenos <james_eikona@ketrenos.com>
This commit is contained in:
James Ketrenos 2021-04-27 17:17:22 -07:00
parent 33131716ce
commit 1ed056dcea
3 changed files with 24 additions and 15 deletions
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2
.gitignore vendored
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@ -1,3 +1,3 @@
node_modules
cache cache
whiskies.db whiskies.db
node_modules

1
index.js
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@ -7,7 +7,6 @@ const cors = require("cors");
app.use(cors()); app.use(cors());
app.use("/graphql", graphqlHTTP({ schema: schema.schema, graphiql: true})); app.use("/graphql", graphqlHTTP({ schema: schema.schema, graphiql: true}));
/* /*
mutation { mutation {
createWhisky( createWhisky(

36
whisky.js
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@ -22,12 +22,16 @@ const client = new GraphQLClient("http://localhost:4000/graphql", { headers: {}
const getWhiskyInfo = async (whisky) => { const getWhiskyInfo = async (whisky) => {
const cacheFile = `cache/${whisky.code}`; const cacheFile = `cache/${whisky.code}`;
return fs.stat(cacheFile).then(async stat => { return fs.stat(cacheFile).then(async stat => {
if (moment().subtract(1, 'day').isBefore(stat.mtime)) { const last = moment(stat.mtime),
console.log(`${cacheFile} is newer than one day ${moment(stat.mtime).calendar()}`); yesterday = moment().subtract(1, 'day');;
} else {
console.log(`${cacheFile} is older than one day ${moment(stat.mtime).calendar()}`); if (last.isBefore(yesterday)) {
console.log(`${cacheFile} ${last.calendar()} is older than yesterday at this time: ${yesterday.calendar()}`);
await fs.unlink(cacheFile); await fs.unlink(cacheFile);
} else {
console.log(`${cacheFile} ${last.calendar()} is newer than yesterday at this time: ${yesterday.calendar()}`);
} }
return fs.readFile(cacheFile); return fs.readFile(cacheFile);
}) })
.catch(async (error) => { .catch(async (error) => {
@ -290,14 +294,19 @@ fs.stat("cache")
.then(async () => { .then(async () => {
/* Attempt to read the whisky cache data. /* Attempt to read the whisky cache data.
* If it is older than 1 day, fetch new data */ * If it is older than 1 day, fetch new data */
const stat = await fs.stat("cache/whiskies"); const cacheFile = "cache/whiskies",
if (moment().subtract(1, 'day').isBefore(stat.mtime)) { stat = await fs.stat(cacheFile),
console.log(`cache/whiskies is newer than one day ${moment(stat.mtime).calendar()}`); last = moment(stat.mtime),
yesterday = moment().subtract(1, 'day');
if (last.isBefore(yesterday)) {
console.log(`${cacheFile} ${last.calendar()} is older than yesterday at this time: ${yesterday.calendar()}`);
await fs.unlink(cacheFile);
} else { } else {
console.log(`cache/whiskies is older than one day ${moment(stat.mtime).calendar()}`); console.log(`${cacheFile} ${last.calendar()} is newer than yesterday at this time: ${yesterday.calendar()}`);
await fs.unlink('cache/whiskies');
} }
const data = await fs.readFile("cache/whiskies");
const data = await fs.readFile(cacheFile);
return fs.readFile("cache/cookies") return fs.readFile("cache/cookies")
.then(cookieData => { .then(cookieData => {
JSON.parse(cookieData).forEach(cookie => cookies.push(cookie)) JSON.parse(cookieData).forEach(cookie => cookies.push(cookie))
@ -307,6 +316,7 @@ fs.stat("cache")
}); });
}).catch(async (error) => { }).catch(async (error) => {
if (criticalFailure) throw error; if (criticalFailure) throw error;
console.error(error);
console.log(`Cache or cookies not found--loading fresh whisky list and cookies.`); console.log(`Cache or cookies not found--loading fresh whisky list and cookies.`);
await rateLimit(); await rateLimit();
return fetch("http://oregonliquorsearch.com/", { return fetch("http://oregonliquorsearch.com/", {
@ -356,10 +366,10 @@ fs.stat("cache")
}) })
.then(response => response.text()); .then(response => response.text());
}) })
.then(dom => { .then(async (dom) => {
try { try {
// console.log(`Writing to "cache"...`); console.log(`Writing to "cache"...`);
fs.writeFile("cache/whiskies", dom); await fs.writeFile("cache/whiskies", dom);
} catch(_error) { } catch(_error) {
if (criticalFailure) throw _error; if (criticalFailure) throw _error;
console.log(`Write failed: ${_error}`); console.log(`Write failed: ${_error}`);