Create app.py

app.py

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+import gradio as gr
+import base64
+
+def buffer_to_base64(file_obj):
+    """
+    file_obj: gr.File komponen menerima binary stream
+    """
+    # Baca data binary
+    binary_data = file_obj.read()
+    # Encode ke Base64 string
+    b64_str = base64.b64encode(binary_data).decode("utf-8")
+    return b64_str
+
+# Interface Gradio
+with gr.Blocks() as demo:
+    gr.Markdown("# ESP32 Buffer to Base64 API")
+    with gr.Row():
+        inp = gr.File(label="Upload Raw Buffer", type="binary")
+        out = gr.Textbox(label="Base64 Output")
+    btn = gr.Button("Convert")
+    btn.click(buffer_to_base64, inputs=inp, outputs=out)
+
+# Jalankan sebagai REST API
+if __name__ == "__main__":
+    demo.launch(server_name="0.0.0.0", server_port=7860)