Added custom errors for github client

services/github-client.ts

@@ -1,4 +1,6 @@
 import { GITHUB_AUTH_CONFIG, GITHUB_CONFIG } from "../config/github-config";
+import {GithubApiError} from "../utils/errors/GithubApiError";
+import {ContentLengthError} from "../utils/errors/ContentLengthError";
 
 /**
  * A client for interacting with the GitHub API.
@@ -30,18 +32,26 @@ class GithubClient {
                 method: 'GET',
             });
 
-            if (response.status === 401) {
-                throw new Error("Unauthorized: Please check your GitHub token.");
-            }
+        if (response.status === 401) {
+            throw new GithubApiError("Unauthorized: Please check your GitHub token.", 401);
+        }
+
+        if (response.status === 403) {
+            throw new GithubApiError(`Forbidden: You have exceeded the rate limit or do not have permission to access this resource.`, 403);
+        }
 
-            if (response.status === 403) {
-                throw new Error(`Forbidden: ${await response.text()}`);
-            }
+        if (response.status === 404) {
+            throw new GithubApiError(`Not Found: The requested resource could not be found on GitHub.`, 404);
+        }
 
-            if (!response.ok) {
-                const errorText = await response.text();
-                throw new Error(`Failed to fetch content from GitHub: ${errorText}`);
-            }
+        if (response.status === 500) {
+            throw new GithubApiError(`Internal Server Error: GitHub is experiencing issues. Please try again later.`, 500);
+        }
+
+        if (!response.ok) {
+            const errorText = await response.text();
+            throw new GithubApiError(`Failed to fetch content from GitHub: ${errorText || 'Unknown error occurred'}`, response.status);
+        }
 
             this.checkContentLength(parseInt(response.headers.get('Content-Length') || '0', 10));
 
@@ -56,7 +66,7 @@ class GithubClient {
      */
     private checkContentLength(contentLength: number) {
         if (contentLength >= this.maxContentLength) {
-            throw new Error('Data received is too large to process');
+            throw new ContentLengthError('Data received from github is too large to process');
         }
     }
 }

utils/errors/ContentLengthError.ts

@@ -0,0 +1,11 @@
+export class ContentLengthError extends Error {
+
+    constructor(message: string) {
+        super(message);
+        this.name = "ContentLengthError";
+
+        if (Error.captureStackTrace) {
+            Error.captureStackTrace(this, ContentLengthError);
+        }
+    }
+}

utils/errors/GithubApiError.ts

@@ -0,0 +1,13 @@
+export class GithubApiError extends Error {
+    statusCode: number;
+
+    constructor(message: string, statusCode: number) {
+        super(message);
+        this.name = "GithubApiError";
+        this.statusCode = statusCode;
+
+        if (Error.captureStackTrace) {
+            Error.captureStackTrace(this, GithubApiError);
+        }
+    }
+}