main.py

from fastapi import FastAPI, File, UploadFile
from fastapi.middleware.cors import CORSMiddleware
import uvicorn
import numpy as np
from io import BytesIO
from PIL import Image
import tensorflow as tf

app = FastAPI()

origins = [
    "https://drleafo.netlify.app",
    "http://localhost",
    "http://localhost:3000",
    "http://localhost:8888",
    
]
app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

MODEL = tf.keras.models.load_model("./models/1")

CLASS_NAMES = ["Early Blight", "Late Blight", "Healthy"]

@app.get("/")
async def test():
    return "Hello, From Server"

def read_file_as_image(data) -> np.ndarray:
    image = np.array(Image.open(BytesIO(data)))
    return image

@app.post("/predict/potato")
async def predict(
    file: UploadFile = File(...)
):
    image = read_file_as_image(await file.read())
    img_batch = np.expand_dims(image, 0)
    predictions = MODEL.predict(img_batch)
    predicted_class = CLASS_NAMES[np.argmax(predictions[0])]
    confidence = np.max(predictions[0])
    data={
        'class': predicted_class,
        'confidence': float(confidence)
    }
    return data

if __name__ == "__main__":
    uvicorn.run(app, host='localhost', port=8000)