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Added caching for web api. #38

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Added caching for web api. #38

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9166d11
Add caching utilities to api.js. Add use of caching for getUserProfil…
AzureFractal Sep 26, 2018
ef35e29
Move caching functions to separate .js file.
AzureFractal Oct 20, 2018
066dae1
Add timeout parameter for setCache
AzureFractal Oct 20, 2018
dbe9447
Merge branch 'master' into appcache
Nov 4, 2018
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71 changes: 53 additions & 18 deletions app/src/api.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import $ from 'jquery';
import * as Cookies from "js-cookie";
import Cache from "./cache";

const URL = "https://hack.battlecode.org";
// const URL = 'http://localhost:8000'; // DEVELOPMENT
Expand Down Expand Up @@ -84,17 +85,26 @@ class Api {
}

static getUserTeam(callback) {
$.get(URL+"/api/userteam/"+encodeURIComponent(Cookies.get('username'))+"/"+LEAGUE+"/").done(function(data, status){
Cookies.set('team_id',data.id);
Cookies.set('team_name',data.name);

$.get(URL+"/api/"+LEAGUE+"/team/"+data.id+"/").done(function(data, status) {
callback(data);
});
}).fail(function(xhr, status, error) {
// possibly dangerous???
callback(null);
});

var requestURL = URL+"/api/userteam/"+encodeURIComponent(Cookies.get('username'))+"/"+LEAGUE+"/";
var data = Cache.getCache(requestURL);

if (data !==null) {
callback(data);
} else {
$.get(requestURL).done(function(data, status){
Cookies.set('team_id',data.id);
Cookies.set('team_name',data.name);

$.get(URL+"/api/"+LEAGUE+"/team/"+data.id+"/").done(function(data, status) {
Cache.setCache(requestURL, data);
callback(data);
});
}).fail(function(xhr, status, error) {
// possibly dangerous???
callback(null);
});
}
}

static updateTeam(params, callback) {
Expand Down Expand Up @@ -256,17 +266,41 @@ class Api {
}

static getUserProfile(callback) {
$.get(URL+"/api/user/profile/"+encodeURIComponent(Cookies.get('username'))+"/").done(function(data, status) {
Cookies.set('user_url',data.url);
$.get(data.url).done(function(data, success) {
callback(data);
}).fail(function(xhr, status, error) {
console.log(error);
var profileURL = URL+"/api/user/profile/"+encodeURIComponent(Cookies.get('username'))+"/";
var data = Cache.getCache(profileURL);

if (data!==null) {
callback(data);
var userURLData = Cache.getCache(data.url);
if (userURLData!==null) {
callback(userURLData);
} else {
$.get(data.url).done(function(userURLData, success) {
Cache.setCache(data.url, userURLData);
callback(userURLData);
}).fail(function(xhr, status, error) {
console.log(error);
});
}
} else {
$.get(profileURL).done(function(data, status) {
Cache.setCache(profileURL, data);
Cookies.set('user_url', data.url);

$.get(data.url).done(function(userURLData, success) {
Cache.setCache(data.url, userURLData);
callback(userURLData);
}).fail(function(xhr, status, error) {
console.log(error);
});
});
});
}
}

static updateUser(profile, callback) {
Cache.deleteCache(URL+"/api/user/profile/"+encodeURIComponent(Cookies.get('username'))+"/");
Cache.deleteCache(Cookies.get('user_url'));

$.ajax({
url:Cookies.get('user_url'),
data:JSON.stringify(profile),
Expand Down Expand Up @@ -297,6 +331,7 @@ class Api {
static logout(callback) {
Cookies.set('token',"");
Cookies.set('refresh',"");
Cache.clearCache();
callback();
}

Expand Down
36 changes: 36 additions & 0 deletions app/src/cache.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,36 @@

export default class Cache {
static setCache(url, data, timeout = 1800) {
data['expiry_time'] = (new Date()).getTime() + timeout * 1000;
window.localStorage.setItem(url, JSON.stringify(data));
console.log("Store:");
console.log(data);
}

static getCache(url) {
var cachedResult = window.localStorage.getItem(url);
console.log("getCache from url:");
console.log(url);
console.log(cachedResult);
console.log((new Date()).getTime());
if (cachedResult===null) {
return null;
} else {
var parsedResult = JSON.parse(cachedResult);
if ((new Date()).getTime() < parsedResult['expiry_time']) {
console.log("Cache Hit");
return parsedResult;
} else {
return null;
}
}
}

static deleteCache(url) {
window.localStorage.removeItem(url);
}

static clearCache() {
window.localStorage.clear();
}
}