Cache changelog information on the server for 15 minutes

This commit is contained in:
Jérémie Astori 2017-12-23 13:37:33 -05:00
parent 9691df67e3
commit 57c24704af
No known key found for this signature in database
GPG key ID: B9A4F245CD67BDE8

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@ -7,12 +7,18 @@ module.exports = {
fetch,
};
const versions = {
current: {
version: `v${pkg.version}`,
},
};
function fetch(callback) {
const changelog = {
current: {
version: `v${pkg.version}`,
},
};
// Serving information from cache
if (versions.current.changelog) {
callback(versions);
return;
}
request.get({
uri: "https://api.github.com/repos/thelounge/lounge/releases",
@ -22,8 +28,7 @@ function fetch(callback) {
},
}, (error, response, body) => {
if (error || response.statusCode !== 200) {
callback(changelog);
callback(versions);
return;
}
@ -36,8 +41,8 @@ function fetch(callback) {
// Find the current release among releases on GitHub
for (i = 0; i < body.length; i++) {
release = body[i];
if (release.tag_name === changelog.current.version) {
changelog.current.changelog = release.body_html;
if (release.tag_name === versions.current.version) {
versions.current.changelog = release.body_html;
prerelease = release.prerelease;
break;
@ -51,7 +56,7 @@ function fetch(callback) {
// Find latest release or pre-release if current version is also a pre-release
if (!release.prerelease || release.prerelease === prerelease) {
changelog.latest = {
versions.latest = {
prerelease: release.prerelease,
version: release.tag_name,
url: release.html_url,
@ -62,6 +67,13 @@ function fetch(callback) {
}
}
callback(changelog);
// Emptying cached information after 15 minutes
setTimeout(() => {
delete versions.current.changelog;
delete versions.latest;
}, 15 * 60 * 1000
);
callback(versions);
});
}