feat: add support for request redirection and abort signal handling

dist/index.js

@@ -27,8 +27,10 @@ const readData = (res, mode) => new Promise((resolve, reject) => {
     })
         .on("error", reject);
 });
-export default async (urlString, options = {}) => {
+const fetch = async (urlString, options = {}, redirectCount = 0) => {
     const { protocol, hostname, pathname, search, port } = new URL(urlString);
+    if (options.signal?.aborted)
+        throw new Error("Request aborted");
     const body = options.method === "POST" && options.body
         ? options.headers?.["Content-Type"] === "application/json"
             ? JSON.stringify(options.body)
@@ -48,6 +50,11 @@ export default async (urlString, options = {}) => {
     return new Promise((resolve, reject) => {
         const requester = protocol === "https:" ? https : http;
         const req = requester.request(requestOptions, res => {
+            if (options.followRedirects && res.statusCode && res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
+                if (redirectCount >= (options.maxRedirects || 5))
+                    return reject(new Error("Max redirects exceeded"));
+                return resolve(fetch(new URL(res.headers.location, urlString).toString(), options, redirectCount + 1));
+            }
             if (res.statusCode && (res.statusCode < 200 || res.statusCode >= 300))
                 return reject(new Error(`Request failed with status code ${res.statusCode}`));
             resolve({
@@ -64,8 +71,15 @@ export default async (urlString, options = {}) => {
             reject(new Error("Request timed out"));
         });
         req.on("error", reject);
+        if (options.signal) {
+            options.signal.addEventListener("abort", () => {
+                req.destroy(new Error("Request aborted"));
+                reject(new Error("Request aborted"));
+            });
+        }
         if (body)
             req.write(body);
         req.end();
     });
 };
+export default fetch;

src/index.ts

@@ -16,6 +16,9 @@ type ResponseData = {
 interface ExtendedRequestOptions extends http.RequestOptions {
   body?: any;
   timeout?: number;
+  followRedirects?: boolean;
+  maxRedirects?: number;
+  signal?: AbortSignal;
 }
 
 const decompress = (
@@ -53,12 +56,16 @@ const readData = <T>(
       .on("error", reject);
   });
 
-export default async (
+const fetch = async (
   urlString: string,
-  options: ExtendedRequestOptions = {}
+  options: ExtendedRequestOptions = {},
+  redirectCount: number = 0
 ): Promise<ResponseData> => {
   const { protocol, hostname, pathname, search, port } = new URL(urlString);
 
+  if(options.signal?.aborted)
+    throw new Error("Request aborted");
+
   const body =
     options.method === "POST" && options.body
       ? options.headers?.["Content-Type"] === "application/json"
@@ -81,6 +88,12 @@ export default async (
   return new Promise((resolve, reject) => {
     const requester = protocol === "https:" ? https : http;
     const req = requester.request(requestOptions, res => {
+      if(options.followRedirects && res.statusCode && res.statusCode >= 300 && res.statusCode < 400 && res.headers.location) {
+        if(redirectCount >= (options.maxRedirects || 5))
+          return reject(new Error("Max redirects exceeded"));
+        return resolve(fetch(new URL(res.headers.location, urlString).toString(), options, redirectCount + 1));
+      }
+
       if(res.statusCode && (res.statusCode < 200 || res.statusCode >= 300))
         return reject(new Error(`Request failed with status code ${res.statusCode}`));
       resolve({
@@ -99,8 +112,18 @@ export default async (
     });
 
     req.on("error", reject);
+
+    if(options.signal) {
+      options.signal.addEventListener("abort", () => {
+        req.destroy(new Error("Request aborted"));
+        reject(new Error("Request aborted"));
+      });
+    }
+
     if(body)
       req.write(body);
     req.end();
   });
 };
+
+export default fetch;