app.py

from fastapi import FastAPI
from transformers import pipeline

# create a new FASTAPI app instance
app = FastAPI()

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

@app.get("/")
def home():
    return {"message": "Welcome to the Text Generation API"}

@app.get("/generate")
def generate(text:str):
    # use pipelibe to generate text  from given text as input param
    output = pipe(text)

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