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# app.py

from fastapi import FastAPI
import torch
import torch.nn as nn
import torch
from torchvision import transforms

from typing import Any, Type

import torch

class TorchTensor(torch.Tensor):
    pass

class Prediction:
    prediction: TorchTensor

app = FastAPI()

# Load the PyTorch model
model = torch.load("best_model-epoch=01-val_loss=3.00.ckpt")

# Define a function to preprocess the input


def preprocess_input(input):
    
    
    input = input.resize((224, 224))
    
    input = torch.from_numpy(np.array(input)).float()
    
    input = transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])(input)
    
    return input

@app.post("/predict")
async def predict_endpoint(input: Any):
    
    
    image = Image.open(BytesIO(input))
    
    image = preprocess_input(image)
    
    prediction = model(image.unsqueeze(0))
    
    predicted_class = prediction.argmax(1)
    
    return {"prediction": predicted_class.item()}


if _name_ == "_main_":
    import uvicorn
    uvicorn.run(app, host="0.0.0.0", port=8000)