-
Notifications
You must be signed in to change notification settings - Fork 7
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #53 from UTDNebula/fetch-cache
Fetch cache
- Loading branch information
Showing
3 changed files
with
132 additions
and
26 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| import { Storage } from '@plasmohq/storage'; | ||
|
|
||
| const storage = new Storage({ | ||
| area: 'local', | ||
| }); | ||
|
|
||
| //Increment these to reset cache on next deployment | ||
| export const cacheIndexProfessor = 0; | ||
| export const cacheIndexGrades = 0; | ||
| export const cacheIndexRmp = 0; | ||
|
|
||
| function getCache(key: string, cacheIndex: number) { | ||
| return new Promise((resolve, reject) => { | ||
| if (process.env.NODE_ENV !== 'development') { | ||
| storage | ||
| .get(key) | ||
| .then((item) => { | ||
| if (typeof item !== 'undefined') { | ||
| const parsedItem = JSON.parse(item); | ||
| if ( | ||
| !('cacheIndex' in parsedItem) || | ||
| cacheIndex !== parsedItem.cacheIndex || | ||
| !('expiry' in parsedItem) || | ||
| new Date().getTime() > parsedItem.expiry || | ||
| !('value' in parsedItem) | ||
| ) { | ||
| storage.remove(key); | ||
| resolve(false); | ||
| } else { | ||
| resolve(parsedItem.value); | ||
| } | ||
| } else { | ||
| resolve(false); | ||
| } | ||
| }) | ||
| .catch((error) => { | ||
| reject(error); | ||
| }); | ||
| } else { | ||
| resolve(false); | ||
| } | ||
| }); | ||
| } | ||
|
|
||
| function setCache( | ||
| key: string, | ||
| cacheIndex: number, | ||
| data: object, | ||
| expireTime: number, | ||
| ) { | ||
| storage.set( | ||
| key, | ||
| JSON.stringify({ | ||
| value: data, | ||
| expiry: new Date().getTime() + expireTime, | ||
| cacheIndex: cacheIndex, | ||
| }), | ||
| ); | ||
| } | ||
|
|
||
| function fetchWithCache( | ||
| url: string, | ||
| params: unknown, | ||
| cacheIndex: number, | ||
| expireTime: number, | ||
| parseText: boolean = false, | ||
| ) { | ||
| const cacheKey = url + JSON.stringify(params); | ||
| return getCache(cacheKey, cacheIndex) | ||
| .then((cache) => { | ||
| if (cache) { | ||
| return cache; | ||
| } | ||
| return fetch(url, params) | ||
| .then((response) => { | ||
| if (parseText) { | ||
| return response.text(); | ||
| } | ||
| return response.json(); | ||
| }) | ||
| .then((data) => { | ||
| setCache(cacheKey, cacheIndex, data, expireTime); | ||
| return data; | ||
| }); | ||
| }) | ||
| .catch((error) => { | ||
| console.error(error); | ||
| }); | ||
| } | ||
| export default fetchWithCache; |