app.py

from fastapi import FastAPI
import language_tool_python

app = FastAPI()

# Initialize the LanguageTool instance for English
tool = language_tool_python.LanguageTool('en-US')

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

@app.post("/check")
def check_text(text: str):
    """
    This endpoint checks grammar and spelling of the input text.
    :param text: The text to be checked
    :return: A list of grammar and spelling mistakes
    """
    matches = tool.check(text)
    # Convert matches to a more readable format
    errors = [{"message": match.message, "context": match.context, "suggestions": match.replacements} for match in matches]
    return {"errors": errors}