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@ -5,6 +5,17 @@ const dotenv = require("dotenv").config(); |
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const GITHUB_API = "https://api.github.com"; |
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const authenticate = `client_id=${process.env.CLIENT_ID}&client_secret=${process.env.CLIENT_SECRET}`; |
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const API_FOLLOWING = "/following"; |
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const API_FOLLOWERS = "/followers"; |
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const API_USER_PATH = "/users/"; |
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const API_ORGS_PATH = "/orgs/"; |
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const API_PAGINATION_SIZE = 100; // 100 is the max, 30 is the default
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// if this is too large, it would be infeasible to make graphs for people following popular people
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const API_MAX_PAGES = 2; |
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const API_PAGINATION = "&per_page=" + API_PAGINATION_SIZE; |
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const REPOS_PATH = "/repos"; |
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/** |
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* Queries data from the github APi server and returns it as |
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@ -73,40 +84,27 @@ function queryGitHubAPI(requestURL) |
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} |
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const API_FOLLOWING = "/following"; |
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const API_FOLLOWERS = "/followers"; |
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const API_USER_PATH = "/users/"; |
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const API_PAGINATION_SIZE = 100; // 100 is the max, 30 is the default
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// if this is too large, it would be infeasible to make graphs for people following popular people
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const API_MAX_PAGES = 3; |
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const API_PAGINATION = "&per_page=" + API_PAGINATION_SIZE; |
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/** |
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* This will fetch all of the either followers or following of a |
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* github user. |
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* |
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* This function is recursive to traverse all the pagination so we |
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* can get a complete list of all the friends. The max amount of |
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* followers/following you can get at once is 100. |
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* Fetches all content from a particular github api endpoint |
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* using their pagination schema. |
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* |
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* @param {*} username username of github client |
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* @param {*} apiPath following or followers |
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* @param {*} page current pagination page |
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* @param {*} lst list we are building on |
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*/ |
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function fetchAllUsers(username, apiPath, page, lst) |
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function fetchAllWithPagination(apiPath, page, lst) |
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{ |
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return new Promise((resolve, reject)=> |
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{ |
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queryGithubAPIRaw(API_USER_PATH + username + apiPath + "?page=" + page + API_PAGINATION).then((data)=> |
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queryGithubAPIRaw(apiPath + "?page=" + page + API_PAGINATION).then((data)=> |
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{ |
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if(data.hasOwnProperty("length")) |
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{ |
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lst = lst.concat(data) |
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if(page < API_MAX_PAGES && data.length === API_PAGINATION_SIZE) |
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{ |
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fetchAllUsers(username, apiPath, page + 1, lst).then((l)=> |
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fetchAllWithPagination(apiPath, page + 1, lst).then((l)=> |
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{ |
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resolve(l); |
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}); |
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@ -118,6 +116,7 @@ function fetchAllUsers(username, apiPath, page, lst) |
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} |
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else |
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{ |
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console.log(data); |
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reject("Malformed data"); |
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} |
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}).catch((err)=> |
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@ -136,6 +135,23 @@ function fetchAllUsers(username, apiPath, page, lst) |
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} |
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/** |
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* Makes a copy of a JS object with certain properties |
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* |
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* @param {*} props |
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* @param {*} obj |
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*/ |
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function copyWithProperties(props, obj) |
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{ |
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var newO = new Object(); |
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for(var i =0; i < props.length; i++) |
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{ |
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newO[props[i]] = obj[props[i]]; |
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} |
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return newO; |
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} |
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/** |
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* Combines the list of friends and followers ignoring duplicates |
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* that are already in the list. (person is both following and followed by someone) |
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@ -156,9 +172,8 @@ function minimizeFriends(people) |
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{ |
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ids.add(people[i].id); |
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friendLst.push({ |
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id: people[i].id, |
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login: people[i].login, |
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avatar_url: people[i].avatar_url |
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login: people[i].login, |
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avatar_url: people[i].avatar_url |
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}); |
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} |
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} |
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@ -180,9 +195,9 @@ function queryFriends(user) |
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{ |
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if(cacheHit == null) |
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{ |
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fetchAllUsers(user, API_FOLLOWERS, 1, []).then((followers)=> |
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fetchAllWithPagination(API_USER_PATH + user + API_FOLLOWERS, 1, []).then((followers)=> |
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{ |
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fetchAllUsers(user, API_FOLLOWING, 1, []).then((following)=> |
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fetchAllWithPagination(API_USER_PATH + user + API_FOLLOWING, 1, []).then((following)=> |
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{ |
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var fList = minimizeFriends(following.concat(followers)); |
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resolve(fList); |
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@ -190,10 +205,12 @@ function queryFriends(user) |
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}).catch((err)=> |
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{ |
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console.log(err); |
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reject("API ERROR"); |
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}) |
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}).catch((error)=> |
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{ |
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console.log(error); |
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resolve("API Error"); |
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}) |
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} |
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else |
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@ -205,6 +222,97 @@ function queryFriends(user) |
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} |
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/** |
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* |
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* Fetches all of the members of an organization from the |
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* API or cache |
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* |
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* /orgs/RITlug/members?page=1 |
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* |
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* @param {*} orgName |
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*/ |
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function getOrganizationMembers(orgName) |
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{ |
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const cacheHit = cache.get("/org/users/" + orgName); |
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return new Promise((resolve, reject)=> |
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{ |
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if(cacheHit == null) |
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{ |
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fetchAllWithPagination(API_ORGS_PATH + orgName + "/members", 1, []).then((mems)=> |
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{ |
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var minimized = minimizeFriends(mems); |
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resolve(minimized); |
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cache.put("/org/users/" + orgName, minimized); |
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}).catch((err)=> |
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{ |
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console.log(err) |
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}) |
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} |
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else |
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{ |
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console.log("Org members cache hit"); |
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resolve(cacheHit); |
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} |
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}); |
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} |
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/** |
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* Minimizes the JSON for a list of repositories |
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* |
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* @param {*} repositories |
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*/ |
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function minimizeRepositories(repositories) |
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{ |
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var rList = []; |
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for(var i = 0; i < repositories.length; i++) |
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{ |
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rList.push(copyWithProperties(["name", "created_at", "homepage", |
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"description", "language", "forks", "watchers", |
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"open_issues_count", "license", "html_url"], |
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repositories[i])); |
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} |
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return rList; |
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} |
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/** |
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* Fetches all repositories from the API |
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* |
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* @param {*} user name of org/user |
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* @param {*} orgsOrUsers either /users/ or /orgs/ |
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*/ |
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function queryRepositories(user, orgsOrUsers) |
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{ |
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const cacheHit = cache.get(user + REPOS_PATH); |
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return new Promise((resolve, reject)=> |
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{ |
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if(cacheHit == null) |
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{ |
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fetchAllWithPagination(orgsOrUsers + user + REPOS_PATH, 1, []).then((repos)=> |
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{ |
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var minimized = minimizeRepositories(repos); |
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resolve(minimized); |
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cache.put(user + REPOS_PATH, minimized); |
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}).catch((err)=> |
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{ |
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console.log(err) |
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console.log("bad things went down"); |
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}) |
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} |
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else |
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{ |
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console.log("Repositories cache hit"); |
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resolve(cacheHit); |
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} |
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}); |
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} |
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/** |
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* /users/name/following/followers |
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*/ |
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routes.get("/friends/:name", (request, result)=> |
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{ |
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queryFriends(request.params.name).then(friends=> |
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@ -217,7 +325,54 @@ routes.get("/friends/:name", (request, result)=> |
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.json({error: 'API error fetching friends'}) |
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.end(); |
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}); |
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}) |
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}); |
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routes.get("/org/users/:name", (request, result)=> |
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{ |
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getOrganizationMembers(request.params.name).then(friends=> |
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{ |
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result.json(friends) |
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.end(); |
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}).catch(error=> |
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{ |
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result.status(500) |
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.json({error: 'API error fetching friends'}) |
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.end(); |
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}); |
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}); |
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routes.get("/repositories/:name", (request, result)=> |
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{ |
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queryRepositories(request.params.name, API_USER_PATH).then(repos=> |
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{ |
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result.json(repos) |
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.end(); |
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}).catch(error=> |
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{ |
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result.status(500) |
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.json({error: 'API error fetching friends'}) |
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.end(); |
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}); |
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}); |
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routes.get("/org/repositories/:name", (request, result)=> |
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{ |
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queryRepositories(request.params.name, API_ORGS_PATH).then(repos=> |
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{ |
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result.json(repos) |
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.end(); |
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}).catch(error=> |
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{ |
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result.status(500) |
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.json({error: 'API error fetching friends'}) |
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.end(); |
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}); |
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}); |
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routes.get('/*', (request, result) => |
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Jeffery Russell
5 years ago
GitHub