removed ephemeral key logic

This is not required - thanks for the tip @Sean-Der!

Author: chadwallacehart

index.html

@@ -205,51 +205,6 @@ <h1>Chat with GPT-4 Realtime with WebRTC</h1>
     ];
 
 
-    /**
-     * Fetch an ephemeral key from OpenAI to start a Realtime session.
-     */
-    async function fetchEphemeralKey(apiKey) {
-        try {
-            const headers = {
-                "Authorization": `Bearer ${apiKey}`,
-                "Content-Type": "application/json"
-            };
-            const payload = {
-                model: model,
-                // expires_at: Math.floor(Date.now() / 1000) + 60,  // #Fail - unknown parameter!
-                // load these later
-                // voice: voiceEl.value,
-                // input_audio_transcription: {model: "whisper-1"},
-                // instructions: sessionInstructionsEl.value
-            };
-
-            const response = await fetch("https://api.openai.com/v1/realtime/sessions", {
-                method: "POST",
-                headers: headers,
-                body: JSON.stringify(payload)
-            });
-
-            if (!response.ok) {
-                console.error("Failed to create ephemeral session:", await response.text());
-                return null;
-            }
-            const data = await response.json();
-            const token = data?.client_secret?.value;
-            if (!token) {
-                console.error("Invalid response format:", data);
-                return null;
-            }
-            // For debugging - don't make this easy to abuse
-            console.log(`Received ephemeral key: ${token} will expire at ${new Date(data?.client_secret?.expires_at * 1000)
-                .toLocaleString()}`, data);
-            return token;
-        } catch (error) {
-            console.error("Error fetching ephemeral key:", error);
-            return error;
-        }
-    }
-
-
     /**
      * Send initial session instructions and start message.
      * This is called when the data channel is opened.
@@ -353,13 +308,6 @@ <h1>Chat with GPT-4 Realtime with WebRTC</h1>
             return;
         }
 
-        // An ephemeral key is required to start a session
-        // Usually this should be requested from your server to avoid exposing the OPENAI_API_KEY
-        const ephemeralToken = await fetchEphemeralKey(apiKey);
-        if (!ephemeralToken || ephemeralToken === "error") {
-            toggleSessionButtons(false);
-            return;
-        }
 
         // Capture the local mic
         // technically optional for the API, but required in this example
@@ -406,7 +354,7 @@ <h1>Chat with GPT-4 Realtime with WebRTC</h1>
                 method: "POST",
                 body: pc.localDescription.sdp,
                 headers: {
-                    Authorization: `Bearer ${ephemeralToken}`,
+                    Authorization: `Bearer ${apiKey}`,
                     "Content-Type": "application/sdp"
                 },
             });