feat: adde CustomError class for better secondary errors (#355)

api/index.js

@@ -38,12 +38,7 @@ module.exports = async (req, res) => {
       parseBoolean(include_all_commits)
     );
   } catch (err) {
-    return res.send(
+    return res.send(renderError(err.message, err.secondaryMessage));
-      renderError(
-        err.message,
-        "Make sure the provided username is not an organization"
-      )
-    );
   }
 
   const cacheSeconds = clampValue(

api/pin.js

@@ -4,7 +4,6 @@ const {
   parseBoolean,
   clampValue,
   CONSTANTS,
-  logger,
 } = require("../src/common/utils");
 const fetchRepo = require("../src/fetchers/repo-fetcher");
 const renderRepoCard = require("../src/cards/repo-card");
@@ -29,8 +28,7 @@ module.exports = async (req, res) => {
   try {
     repoData = await fetchRepo(username, repo);
   } catch (err) {
-    logger.error(err);
+    return res.send(renderError(err.message, err.secondaryMessage));
-    return res.send(renderError(err.message));
   }
 
   let cacheSeconds = clampValue(

api/top-langs.js

@@ -30,7 +30,7 @@ module.exports = async (req, res) => {
   try {
     topLangs = await fetchTopLanguages(username);
   } catch (err) {
-    return res.send(renderError(err.message));
+    return res.send(renderError(err.message, err.secondaryMessage));
   }
 
   const cacheSeconds = clampValue(

src/common/retryer.js

@@ -1,8 +1,8 @@
-const { logger } = require("../common/utils");
+const { logger, CustomError } = require("../common/utils");
 
 const retryer = async (fetcher, variables, retries = 0) => {
   if (retries > 7) {
-    throw new Error("Maximum retries exceeded");
+    throw new CustomError("Maximum retries exceeded", CustomError.MAX_RETRY);
   }
   try {
     logger.log(`Trying PAT_${retries + 1}`);

src/common/utils.js

@@ -170,6 +170,23 @@ const CONSTANTS = {
   ONE_DAY: 86400,
 };
 
+const SECONDARY_ERROR_MESSAGES = {
+  MAX_RETRY:
+    "Please add an env variable called PAT_1 with your github token in vercel",
+  USER_NOT_FOUND: "Make sure the provided username is not an organization",
+};
+
+class CustomError extends Error {
+  constructor(message, type) {
+    super(message);
+    this.type = type;
+    this.secondaryMessage = SECONDARY_ERROR_MESSAGES[type] || "adsad";
+  }
+
+  static MAX_RETRY = "MAX_RETRY";
+  static USER_NOT_FOUND = "USER_NOT_FOUND";
+}
+
 module.exports = {
   renderError,
   kFormatter,
@@ -185,4 +202,5 @@ module.exports = {
   wrapTextMultiline,
   logger,
   CONSTANTS,
+  CustomError,
 };

src/fetchers/stats-fetcher.js

@@ -1,4 +1,4 @@
-const { request, logger } = require("../common/utils");
+const { request, logger, CustomError } = require("../common/utils");
 const axios = require("axios");
 const retryer = require("../common/retryer");
 const calculateRank = require("../calculateRank");
@@ -109,7 +109,10 @@ async function fetchStats(
 
   if (res.data.errors) {
     logger.error(res.data.errors);
-    throw Error(res.data.errors[0].message || "Could not fetch user");
+    throw new CustomError(
+      res.data.errors[0].message || "Could not fetch user",
+      CustomError.USER_NOT_FOUND
+    );
   }
 
   const user = res.data.data.user;