chore: added funding link

chore: remove redundant codes

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+custom: ["https://www.paypal.me/anuraghazra"] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

api/index.js

@@ -1,5 +1,5 @@
 require("dotenv").config();
-const { renderError } = require("../src/utils");
+const { renderError, parseBoolean } = require("../src/utils");
 const fetchStats = require("../src/fetchStats");
 const renderStatsCard = require("../src/renderStatsCard");
 
@@ -18,7 +18,9 @@ module.exports = async (req, res) => {
   } = req.query;
   let stats;
 
+  res.setHeader("Cache-Control", "public, max-age=1800");
   res.setHeader("Content-Type", "image/svg+xml");
+
   try {
     stats = await fetchStats(username);
   } catch (err) {
@@ -28,9 +30,9 @@ module.exports = async (req, res) => {
   res.send(
     renderStatsCard(stats, {
       hide: JSON.parse(hide || "[]"),
-      show_icons,
-      hide_border,
-      hide_rank,
+      show_icons: parseBoolean(show_icons),
+      hide_border: parseBoolean(hide_border),
+      hide_rank: parseBoolean(hide_rank),
       line_height,
       title_color,
       icon_color,

api/pin.js

@@ -14,6 +14,8 @@ module.exports = async (req, res) => {
   } = req.query;
 
   let repoData;
+  
+  res.setHeader("Cache-Control", "public, max-age=1800");
   res.setHeader("Content-Type", "image/svg+xml");
 
   try {

readme.md

@@ -1,6 +1,7 @@
 <p align="center">
- <h2 align="center">Github Readme Stats</h2>
+ <h2 align="center">GitHub Readme Stats</h2>
  <p align="center">Get dynamically generated GitHub stats on your readmes!</p>
+</p>
 
   <p align="center">
     <a href="https://github.com/anuraghazra/github-readme-stats/actions">
@@ -22,29 +23,30 @@
     <a href="https://github.com/anuraghazra/github-readme-stats/issues">Request Feature</a>
   </p>
 </p>
+<p align="center">Loved the project? Please consider <a href="https://www.paypal.me/anuraghazra">donating</a> to help it improve!
 
 # Features
 
-- [Github Stats Card](#github-stats-card)
-- [Github Extra Pins](#github-extra-pins)
+- [GitHub Stats Card](#github-stats-card)
+- [GitHub Extra Pins](#github-extra-pins)
 - [Customization](#customization)
 - [Deploy Yourself](#deploy-on-your-own-vercel-instance)
 
-# Github Stats Card
+# GitHub Stats Card
 
 Copy paste this into your markdown content, and that's it. Simple!
 
-change the `?username=` value to your GitHubs's username
+Change the `?username=` value to your GitHub's username.
 
 ```md
 [![Anurag's github stats](https://github-readme-stats.vercel.app/api?username=anuraghazra)](https://github.com/anuraghazra/github-readme-stats)
 ```
 
-_Note: Ranks are calculated based on users stats, see [src/calculateRank.js](./src/calculateRank.js)_
+_Note: Ranks are calculated based on user's stats, see [src/calculateRank.js](./src/calculateRank.js)_
 
 ### Hiding individual stats
 
-To hide any specific stats, you can pass a query parameter `?hide=` with an array of items, you wanna hide.
+To hide any specific stats, you can pass a query parameter `?hide=` with an array of items you wanna hide.
 
 > Options: `&hide=["stars","prs","issues","contribs"]`
 
@@ -54,7 +56,7 @@ To hide any specific stats, you can pass a query parameter `?hide=` with an arra
 
 ### Showing icons
 
-To enable icons, you can pass `show_icons=true` in the query param like so
+To enable icons, you can pass `show_icons=true` in the query param, like so:
 
 ```md
 ![Anurag's github stats](https://github-readme-stats.vercel.app/api?username=anuraghazra&show_icons=true)
@@ -62,13 +64,13 @@ To enable icons, you can pass `show_icons=true` in the query param like so
 
 Other options:
 
-- `&hide_border=true` hide the border box if you don't like it :D.
-- `&line_height=30` control the line-height between text.
+- `&hide_border=true` hide the border box if you don't like it :D
+- `&line_height=30` control the line-height between text
 - `&hide_rank=true` hides the ranking
 
 ### Customization
 
-You can customize the appearance of your `Stats Card` or `Repo Card` however you want with url params.
+You can customize the appearance of your `Stats Card` or `Repo Card` however you want with URL params.
 
 Customization Options:
 
@@ -107,11 +109,11 @@ Customization Options:
 
 ![Customized Card](https://github-readme-stats.vercel.app/api/pin?username=anuraghazra&repo=github-readme-stats&title_color=fff&icon_color=f9f9f9&text_color=9f9f9f&bg_color=151515)
 
-# Github Extra Pins
+# GitHub Extra Pins
 
-Github extra pins allow you to pin more than 6 repositories in your profile using a GitHub readme profile.
+GitHub extra pins allow you to pin more than 6 repositories in your profile using a GitHub readme profile.
 
-Yey! you are no longer limited to 6 pinned repositories.
+Yey! You are no longer limited to 6 pinned repositories.
 
 ### Usage
 
@@ -129,7 +131,7 @@ Endpoint: `api/pin?username=anuraghazra&repo=github-readme-stats`
 
 ### Quick Tip (Align The Repo Cards)
 
-You usually won't be able to layout the images side by side to do that you can use this approach
+You usually won't be able to layout the images side by side. To do that you can use this approach:
 
 ```md
 <a href="https://github.com/anuraghazra/github-readme-stats">
@@ -140,15 +142,32 @@ You usually won't be able to layout the images side by side to do that you can u
 </a>
 ```
 
-## Deploy on your own vercel instance
+## Deploy on your own Vercel instance
 
-Since Github API only allows 5k requests per hour it is possible that my `https://github-readme-stats.vercel.app/api` could hit the rate limiter thats why if you want to host it on your own vercel server then you don't have to worry about anything. click on the deploy button to get started
+Since the GitHub API only allows 5k requests per hour, it is possible that my `https://github-readme-stats.vercel.app/api` could hit the rate limiter. If you host it on your own Vercel server, then you don't have to worry about anything. Click on the deploy button to get started!
 
 [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/import/project?template=https://github.com/anuraghazra/github-readme-stats)
 
-Make sure to add your own `GITHUB_TOKEN` in `Environment Variables`  
-[Github Docs: Creating a github personal token](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token)
+<details>
+ <summary>Guide on setting up Vercel</summary>
+
+1. Go to [vercel.com](https://vercel.com/)
+1. Click on `Log in`  
+   ![](https://files.catbox.moe/tct1wg.png)
+1. Sign in with GitHub by pressing `Continue with GitHub`  
+   ![](https://files.catbox.moe/btd78j.jpeg)
+1. Sign into GitHub and allow access to all repositories, if prompted
+1. Fork this repo
+1. Go back to your [Vercel dashboard](https://vercel.com/dashboard)
+1. Select `Import Project`  
+   ![](https://files.catbox.moe/qckos0.png)
+1. Select `Import Git Repository`  
+   ![](https://files.catbox.moe/pqub9q.png)
+1. Select root and keep everything as is, just add your environment variable named GITHUB_TOKEN (as shown), which will contain a personal access token (PAT), which you can easily create [here](https://github.com/settings/tokens/new) (leave everything as is, just name it something, it can be anything you want)  
+   ![](https://files.catbox.moe/caem5b.png)
+1. Click deploy, and you're good to go. See your domains to use the API!
+</details>
 
 Contributions are welcomed! <3
 
-Made with :heart: and javascript.
+Made with :heart: and JavaScript.

src/calculateRank.js

@@ -1,3 +1,21 @@
+// https://stackoverflow.com/a/5263759/10629172
+function normalcdf(mean, sigma, to) {
+  var z = (to - mean) / Math.sqrt(2 * sigma * sigma);
+  var t = 1 / (1 + 0.3275911 * Math.abs(z));
+  var a1 = 0.254829592;
+  var a2 = -0.284496736;
+  var a3 = 1.421413741;
+  var a4 = -1.453152027;
+  var a5 = 1.061405429;
+  var erf =
+    1 - ((((a5 * t + a4) * t + a3) * t + a2) * t + a1) * t * Math.exp(-z * z);
+  var sign = 1;
+  if (z < 0) {
+    sign = -1;
+  }
+  return (1 / 2) * (1 + sign * erf);
+}
+
 function calculateRank({
   totalRepos,
   totalCommits,
@@ -13,12 +31,24 @@ function calculateRank({
   const STARS_OFFSET = 0.75;
   const PRS_OFFSET = 0.5;
   const FOLLOWERS_OFFSET = 0.45;
+  const REPO_OFFSET = 1;
 
-  const FIRST_STEP = 0;
-  const SECOND_STEP = 5;
-  const THIRD_STEP = 20;
-  const FOURTH_STEP = 50;
-  const FIFTH_STEP = 130;
+  const ALL_OFFSETS =
+    CONTRIBS_OFFSET +
+    ISSUES_OFFSET +
+    STARS_OFFSET +
+    PRS_OFFSET +
+    FOLLOWERS_OFFSET +
+    REPO_OFFSET;
+
+  const RANK_S_VALUE = 1;
+  const RANK_DOUBLE_A_VALUE = 25;
+  const RANK_A2_VALUE = 45;
+  const RANK_A3_VALUE = 60;
+  const RANK_B_VALUE = 100;
+
+  const TOTAL_VALUES =
+    RANK_S_VALUE + RANK_A2_VALUE + RANK_A3_VALUE + RANK_B_VALUE;
 
   // prettier-ignore
   const score = (
@@ -27,26 +57,37 @@ function calculateRank({
     issues * ISSUES_OFFSET +
     stargazers * STARS_OFFSET +
     prs * PRS_OFFSET +
-    followers * FOLLOWERS_OFFSET
-  ) / totalRepos;
+    followers * FOLLOWERS_OFFSET + 
+    totalRepos * REPO_OFFSET 
+  ) / 100;
+
+  const normalizedScore = normalcdf(score, TOTAL_VALUES, ALL_OFFSETS) * 100;
 
   let level = "";
 
-  if (score == FIRST_STEP) {
-    level = "B";
-  } else if (score > FIRST_STEP && score <= SECOND_STEP) {
-    level = "B+";
-  } else if (score > SECOND_STEP && score <= THIRD_STEP) {
-    level = "A";
-  } else if (score > THIRD_STEP && score <= FOURTH_STEP) {
-    level = "A+";
-  } else if (score > FOURTH_STEP && score <= FIFTH_STEP) {
-    level = "A++";
-  } else if (score > FIFTH_STEP) {
+  if (normalizedScore < RANK_S_VALUE) {
     level = "S+";
   }
+  if (
+    normalizedScore >= RANK_S_VALUE &&
+    normalizedScore < RANK_DOUBLE_A_VALUE
+  ) {
+    level = "S";
+  }
+  if (
+    normalizedScore >= RANK_DOUBLE_A_VALUE &&
+    normalizedScore < RANK_A2_VALUE
+  ) {
+    level = "A++";
+  }
+  if (normalizedScore >= RANK_A2_VALUE && normalizedScore < RANK_A3_VALUE) {
+    level = "A+";
+  }
+  if (normalizedScore >= RANK_A3_VALUE && normalizedScore < RANK_B_VALUE) {
+    level = "B+";
+  }
 
-  return { level, score };
+  return { level, score: normalizedScore };
 }
 
 module.exports = calculateRank;

src/fetchRepo.js

@@ -1,12 +1,10 @@
 const { request } = require("./utils");
+const retryer = require("./retryer");
 
-async function fetchRepo(username, reponame) {
-  if (!username || !reponame) {
-    throw new Error("Invalid username or reponame");
-  }
-
-  const res = await request({
-    query: `
+const fetcher = (variables, token) => {
+  return request(
+    {
+      query: `
       fragment RepoInfo on Repository {
         name
         stargazers {
@@ -33,11 +31,20 @@ async function fetchRepo(username, reponame) {
         }
       }
     `,
-    variables: {
-      login: username,
-      repo: reponame,
+      variables,
     },
-  });
+    {
+      Authorization: `bearer ${token}`,
+    }
+  );
+};
+
+async function fetchRepo(username, reponame) {
+  if (!username || !reponame) {
+    throw new Error("Invalid username or reponame");
+  }
+
+  let res = await retryer(fetcher, { login: username, repo: reponame });
 
   const data = res.data.data;
 

src/fetchStats.js

@@ -1,32 +1,32 @@
 const { request } = require("./utils");
+const retryer = require("./retryer");
 const calculateRank = require("./calculateRank");
 require("dotenv").config();
 
-async function fetchStats(username) {
-  if (!username) throw Error("Invalid username");
-
-  const res = await request({
-    query: `
+const fetcher = (variables, token) => {
+  return request(
+    {
+      query: `
       query userInfo($login: String!) {
         user(login: $login) {
           name
           login
-          repositoriesContributedTo(first: 100, contributionTypes: [COMMIT, ISSUE, PULL_REQUEST, REPOSITORY]) {
-            totalCount
-          }
           contributionsCollection {
             totalCommitContributions
           }
-          pullRequests(first: 100) {
+          repositoriesContributedTo(first: 1, contributionTypes: [COMMIT, ISSUE, PULL_REQUEST, REPOSITORY]) {
             totalCount
           }
-          issues(first: 100) {
+          pullRequests(first: 1) {
+            totalCount
+          }
+          issues(first: 1) {
             totalCount
           }
           followers {
             totalCount
           }
-          repositories(first: 100, orderBy: { direction: DESC, field: STARGAZERS }) {
+          repositories(first: 100, ownerAffiliations: OWNER, isFork: false, orderBy: {direction: DESC, field: STARGAZERS}) {
             totalCount
             nodes {
               stargazers {
@@ -36,9 +36,17 @@ async function fetchStats(username) {
           }
         }
       }
-    `,
-    variables: { login: username },
-  });
+      `,
+      variables,
+    },
+    {
+      Authorization: `bearer ${token}`,
+    }
+  );
+};
+
+async function fetchStats(username) {
+  if (!username) throw Error("Invalid username");
 
   const stats = {
     name: "",
@@ -47,12 +55,14 @@ async function fetchStats(username) {
     totalIssues: 0,
     totalStars: 0,
     contributedTo: 0,
-    rank: "C",
+    rank: { level: "C", score: 0 },
   };
 
+  let res = await retryer(fetcher, { login: username });
+
   if (res.data.errors) {
     console.log(res.data.errors);
-    throw Error("Could not fetch user");
+    throw Error(res.data.errors[0].message || "Could not fetch user");
   }
 
   const user = res.data.data.user;

src/renderRepoCard.js

@@ -1,23 +1,24 @@
-const { kFormatter, encodeHTML, isValidHexColor } = require("../src/utils");
+const { kFormatter, encodeHTML, fallbackColor } = require("../src/utils");
 
 const renderRepoCard = (repo, options = {}) => {
   const { name, description, primaryLanguage, stargazers, forkCount } = repo;
   const { title_color, icon_color, text_color, bg_color } = options;
 
+  const langName = primaryLanguage ? primaryLanguage.name : "Unspecified";
+  const langColor = primaryLanguage ? primaryLanguage.color : "#333";
+
   const height = 120;
-  const shiftText = primaryLanguage.name.length > 15 ? 0 : 30;
+  const shiftText = langName.length > 15 ? 0 : 30;
 
   let desc = description || "No description provided";
   if (desc.length > 55) {
     desc = `${description.slice(0, 55)}..`;
   }
 
-  const titleColor =
-    (isValidHexColor(title_color) && `#${title_color}`) || "#2f80ed";
-  const iconColor =
-    (isValidHexColor(icon_color) && `#${icon_color}`) || "#586069";
-  const textColor = (isValidHexColor(text_color) && `#${text_color}`) || "#333";
-  const bgColor = (isValidHexColor(bg_color) && `#${bg_color}`) || "#FFFEFE";
+  const titleColor = fallbackColor(title_color, "#2f80ed");
+  const iconColor = fallbackColor(icon_color, "#586069");
+  const textColor = fallbackColor(text_color, "#333");
+  const bgColor = fallbackColor(bg_color, "#FFFEFE");
 
   const totalStars = kFormatter(stargazers.totalCount);
   const totalForks = kFormatter(forkCount);
@@ -38,12 +39,8 @@ const renderRepoCard = (repo, options = {}) => {
       <text class="description" x="25" y="70">${encodeHTML(desc)}</text>
       
       <g transform="translate(30, 100)">
-        <circle data-testid="lang-color" cx="0" cy="-5" r="6" fill="${
-          primaryLanguage.color
-        }" />
-        <text data-testid="lang" class="gray" x="15">${
-          primaryLanguage.name
-        }</text>
+        <circle data-testid="lang-color" cx="0" cy="-5" r="6" fill="${langColor}" />
+        <text data-testid="lang" class="gray" x="15">${langName}</text>
       </g>
 
       <g transform="translate(${155 - shiftText}, 100)">

src/renderStatsCard.js

@@ -1,4 +1,4 @@
-const { kFormatter, isValidHexColor } = require("../src/utils");
+const { kFormatter, fallbackColor } = require("../src/utils");
 const getStyles = require("./getStyles");
 
 const createTextNode = ({ icon, label, value, id, index, lineHeight }) => {
@@ -43,12 +43,10 @@ const renderStatsCard = (stats = {}, options = { hide: [] }) => {
 
   const lheight = parseInt(line_height);
 
-  const titleColor =
-    (isValidHexColor(title_color) && `#${title_color}`) || "#2f80ed";
-  const iconColor =
-    (isValidHexColor(icon_color) && `#${icon_color}`) || "#4c71f2";
-  const textColor = (isValidHexColor(text_color) && `#${text_color}`) || "#333";
-  const bgColor = (isValidHexColor(bg_color) && `#${bg_color}`) || "#FFFEFE";
+  const titleColor = fallbackColor(title_color, "#2f80ed");
+  const iconColor = fallbackColor(icon_color, "#4c71f2");
+  const textColor = fallbackColor(text_color, "#333");
+  const bgColor = fallbackColor(bg_color, "#FFFEFE");
 
   const STATS = {
     stars: {
@@ -118,7 +116,7 @@ const renderStatsCard = (stats = {}, options = { hide: [] }) => {
         <circle class="rank-circle-rim" cx="-10" cy="8" r="40" />
         <circle class="rank-circle" cx="-10" cy="8" r="40" />
         <text
-          x="0"
+          x="${rank.level.length === 1 ? "-4" : "0"}"
           y="0"
           alignment-baseline="central"
           dominant-baseline="central"
@@ -129,14 +127,9 @@ const renderStatsCard = (stats = {}, options = { hide: [] }) => {
         </text>
       </g>`;
 
-  // re-adjust circle progressbar's value until the ranking algo is improved
-  let progress = rank.score;
-  if (rank.score > 86) {
-    progress = (40 + rank.score) * 0.6;
-  }
-  if (rank.score < 40) {
-    progress = 40 + rank.score;
-  }
+  // the better user's score the the rank will be closer to zero so
+  // subtracting 100 to get the progress in 100%
+  let progress = 100 - rank.score;
 
   const styles = getStyles({
     titleColor,

src/retryer.js

@@ -0,0 +1,43 @@
+const retryer = async (fetcher, variables, retries = 0) => {
+  if (retries > 7) {
+    throw new Error("Maximum retries exceeded");
+  }
+  try {
+    console.log(`Trying PAT_${retries + 1}`);
+
+    // try to fetch with the first token since RETRIES is 0 index i'm adding +1
+    let response = await fetcher(
+      variables,
+      process.env[`PAT_${retries + 1}`],
+      retries
+    );
+
+    // prettier-ignore
+    const isRateExceeded = response.data.errors && response.data.errors[0].type === "RATE_LIMITED";
+
+    // if rate limit is hit increase the RETRIES and recursively call the retryer
+    // with username, and current RETRIES
+    if (isRateExceeded) {
+      console.log(`PAT_${retries + 1} Failed`);
+      retries++;
+      // directly return from the function
+      return retryer(fetcher, variables, retries);
+    }
+
+    // finally return the response
+    return response;
+  } catch (err) {
+    // prettier-ignore
+    // also checking for bad credentials if any tokens gets invalidated
+    const isBadCredential = err.response.data && err.response.data.message === "Bad credentials";
+
+    if (isBadCredential) {
+      console.log(`PAT_${retries + 1} Failed`);
+      retries++;
+      // directly return from the function
+      return retryer(fetcher, variables, retries);
+    }
+  }
+};
+
+module.exports = retryer;

src/utils.js

@@ -33,19 +33,35 @@ function isValidHexColor(hexColor) {
   ).test(hexColor);
 }
 
-function request(data) {
-  return new Promise((resolve, reject) => {
-    axios({
-      url: "https://api.github.com/graphql",
-      method: "post",
-      headers: {
-        Authorization: `bearer ${process.env.GITHUB_TOKEN}`,
-      },
-      data,
-    })
-      .then((response) => resolve(response))
-      .catch((error) => reject(error));
+function parseBoolean(value) {
+  if (value === "true") {
+    return true;
+  } else if (value === "false") {
+    return false;
+  } else {
+    return value;
+  }
+}
+
+function fallbackColor(color, fallbackColor) {
+  return (isValidHexColor(color) && `#${color}`) || fallbackColor;
+}
+
+function request(data, headers) {
+  return axios({
+    url: "https://api.github.com/graphql",
+    method: "post",
+    headers,
+    data,
   });
 }
 
-module.exports = { renderError, kFormatter, encodeHTML, isValidHexColor, request };
+module.exports = {
+  renderError,
+  kFormatter,
+  encodeHTML,
+  isValidHexColor,
+  request,
+  parseBoolean,
+  fallbackColor,
+};

tests/calculateRank.test.js

@@ -13,6 +13,6 @@ describe("Test calculateRank", () => {
         prs: 300,
         issues: 200,
       })
-    ).toStrictEqual({ level: "S+", score: 192.13 });
+    ).toStrictEqual({ level: "A+", score: 49.16605417270399 });
   });
 });

tests/fetchStats.test.js

@@ -74,7 +74,7 @@ describe("Test fetchStats", () => {
     mock.onPost("https://api.github.com/graphql").reply(200, error);
 
     await expect(fetchStats("anuraghazra")).rejects.toThrow(
-      "Could not fetch user"
+      "Could not resolve to a User with the login of 'noname'."
     );
   });
 });

tests/retryer.test.js

@@ -0,0 +1,50 @@
+require("@testing-library/jest-dom");
+const retryer = require("../src/retryer");
+
+const fetcher = jest.fn((variables, token) => {
+  console.log(variables, token);
+  return new Promise((res, rej) => res({ data: "ok" }));
+});
+
+const fetcherFail = jest.fn(() => {
+  return new Promise((res, rej) =>
+    res({ data: { errors: [{ type: "RATE_LIMITED" }] } })
+  );
+});
+
+const fetcherFailOnSecondTry = jest.fn((_vars, _token, retries) => {
+  return new Promise((res, rej) => {
+    // faking rate limit
+    if (retries < 1) {
+      return res({ data: { errors: [{ type: "RATE_LIMITED" }] } });
+    }
+    return res({ data: "ok" });
+  });
+});
+
+describe("Test Retryer", () => {
+  it("retryer should return value and have zero retries on first try", async () => {
+    let res = await retryer(fetcher, {});
+
+    expect(fetcher).toBeCalledTimes(1);
+    expect(res).toStrictEqual({ data: "ok" });
+  });
+
+  it("retryer should return value and have 2 retries", async () => {
+    let res = await retryer(fetcherFailOnSecondTry, {});
+
+    expect(fetcherFailOnSecondTry).toBeCalledTimes(2);
+    expect(res).toStrictEqual({ data: "ok" });
+  });
+
+  it("retryer should throw error if maximum retries reached", async () => {
+    let res;
+
+    try {
+      res = await retryer(fetcherFail, {});
+    } catch (err) {
+      expect(fetcherFail).toBeCalledTimes(8);
+      expect(err.message).toBe("Maximum retries exceeded");
+    }
+  });
+});