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Enable caching BitChute metadata

This commit is contained in:
Xaekai 2022-01-26 18:36:54 -08:00
parent 8dde08ac6d
commit c506ccf05b
2 changed files with 14 additions and 4 deletions
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3
src/database.js
View File

@ -85,6 +85,9 @@ module.exports.init = function (newDB) {
require('@cytube/mediaquery/lib/provider/youtube').setCache(
new MetadataCacheDB(db)
);
require('@cytube/mediaquery/lib/provider/bitchute').setCache(
new MetadataCacheDB(db)
);
}).catch(error => {
LOGGER.error(error.stack);
process.exit(1);

15
src/database/metadata_cache.js
View File

@ -9,6 +9,8 @@ function mediaquery2cytube(type) {
switch (type) {
case 'youtube':
return 'yt';
case 'bitchute':
return 'bc';
default:
throw new Error(`mediaquery2cytube: no mapping for ${type}`);
}
@ -18,14 +20,17 @@ function cytube2mediaquery(type) {
switch (type) {
case 'yt':
return 'youtube';
case 'bc':
return 'bitchute';
default:
throw new Error(`cytube2mediaquery: no mapping for ${type}`);
}
}
const cachedResultAge = new Summary({
name: 'cytube_yt_cache_result_age_seconds',
help: 'Age (in seconds) of cached record'
name: 'cytube_media_cache_result_age_seconds',
help: 'Age (in seconds) of cached record',
labelNames: ['source']
});
class MetadataCacheDB {
@ -62,10 +67,11 @@ class MetadataCacheDB {
return null;
}
let age = 0;
try {
let age = (Date.now() - row.updated_at.getTime())/1000;
age = (Date.now() - row.updated_at.getTime())/1000;
if (age > 0) {
cachedResultAge.observe(age);
cachedResultAge.labels(type).observe(age);
}
} catch (error) {
LOGGER.error('Failed to record cachedResultAge metric: %s', error.stack);
@ -73,6 +79,7 @@ class MetadataCacheDB {
let metadata = JSON.parse(row.metadata);
metadata.type = cytube2mediaquery(metadata.type);
metadata.meta.cacheAge = age;
return new Media(metadata);
});
}