initial commit

src/index.mjs

@@ -0,0 +1,40 @@
+import fetch from "node-fetch";
+import CookieJar from "./cookie-jar";
+import Cookie from "./cookie";
+
+export default {
+    fetch: async (url, options, cookieJars) => {
+        let cookies = "";
+        if(Array.isArray(cookieJars) && cookieJars.every(c => c instanceof CookieJar)) {
+            cookieJars.forEach(jar => {
+                if(!jar.flags.includes("r"))
+                    return;
+                jar.forEach(c => c.isValidForRequest(url) && (cookies += c.serialize() + "; "));
+            });
+        }
+        else if(cookieJars instanceof CookieJar && cookieJars.flags.includes("r")) {
+            cookieJars.forEach(c => c.isValidForRequest(url) && (cookies += c.serialize() + "; "));
+        }
+        else
+            throw new TypeError("Third paramter is neither a cookie jar nor an array of cookie jars!");
+        if(cookies.length !== 0)
+            options.headers["Cookie"] = cookies.slice(0, -2);
+        const result = await fetch(url, options);
+        // i cannot use headers.get() here because it joins the cookies to a string
+        cookies = result.headers[Object.getOwnPropertySymbols(result.headers)[0]]["set-cookie"];
+        if(cookies) {
+            if(Array.isArray(cookieJars)) {
+                cookieJars.forEach(jar => {
+                    if(!jar.flags.includes("w"))
+                        return;
+                    cookies.forEach(c => jar.addCookie(c));
+                });
+            }
+            else if(cookieJars.flags.includes("w")) {
+                cookies.forEach(c => cookieJars.addCookie(c));
+            }
+        }
+    },
+    CookieJar: CookieJar,
+    Cookie: Cookie
+};