app.py

from fastapi import FastAPI
from transformers import pipeline

## Create a new fastapi app instance
app = FastAPI()

# Initialize the text generation pipeline
pipe = pipeline("text2text-generation", model="google/flan-t5-small")

@app.get("/")
def home():
    return {"message":"Hello World!"}

# Define a function to handle the get request at '/generate'
@app.get("/generate")

def generate(text:str):
    ## Use the pipeline to generate the text from the given the input 
    output = pipe(text)

    ## Return the generated text in Json response
    return {"output":output[0]['generated_text']}