Create index.js

index.js

@@ -0,0 +1,99 @@
+addEventListener("fetch", (event) => {
+    event.respondWith(handleRequest(event.request));
+});
+
+const sseSubstringLength = "data: ".length;
+
+async function post(url, data, bearerToken) {
+    const res = await fetch(url, {
+        method: "POST",
+        headers: {
+            Accept: "application/json",
+            Authorization: "Bearer " + bearerToken,
+            "Content-Type": "application/json",
+            "User-Agent": `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36 x-openai-assistant-app-id`,
+        },
+        body: JSON.stringify(data),
+    });
+    return res.text();
+}
+
+async function chat(bearerToken, message, conversationId, parentId) {
+    const payload = {
+        action: "next",
+        messages: [{
+            id: crypto.randomUUID(),
+            role: "user",
+            content: {
+                content_type: "text",
+                parts: [message]
+            },
+        }],
+        parent_message_id: parentId || crypto.randomUUID(),
+        model: "text-davinci-003-render",
+    };
+
+    if (conversationId) {
+        payload.conversation_id = conversationId;
+    }
+
+    const response = await post(
+        "https://chat.openai.com/backend-api/conversation",
+        payload,
+        bearerToken
+    );
+
+    const sseMessages = response.split("\n").filter((s) => s.length);
+    const result = JSON.parse(
+        sseMessages[sseMessages.length - 2].substring(sseSubstringLength)
+    );
+
+    return result;
+}
+
+async function handleRequest(request) {
+    // Parse the request query string
+    const queryParams = new URL(request.url).searchParams;
+    const apiKey = queryParams.get("api_key");
+    const messageCode = queryParams.get("message");
+    const conversationId = queryParams.get("conversation_id");
+    const parentId = queryParams.get("parent_id");
+    const message = decodeURIComponent(messageCode);
+
+    if (!apiKey) {
+        return new Response(JSON.stringify({
+            error: "Enter you API Key, Boys!"
+        }), {
+            status: 400,
+            headers: {
+                "Content-Type": "application/json",
+            },
+        });
+    }
+
+    if (!message) {
+        return new Response(JSON.stringify({
+            error: "No message provided"
+        }), {
+            status: 400,
+            headers: {
+                "Content-Type": "application/json",
+            },
+        });
+    } else {
+        let response;
+
+        if (conversationId && parentId) {
+            response = await chat(apiKey, message, conversationId, parentId);
+        } else {
+            response = await chat(apiKey, message);
+        }
+
+        // Return the response in JSON format
+        return new Response(JSON.stringify(response), {
+            headers: {
+                "Content-Type": "application/json",
+            },
+        });
+    }
+}