This document provides an in-depth explanation of the main.py
file, which is the core of the Script Generator web application built using FastAPI.
- Imports
- ScriptRequest Model
- Route:
GET /
- Route:
POST /generate_script
- Route:
GET /download_script/{filename}
- Running the Application
from fastapi import FastAPI, Form, Response
from fastapi.responses import HTMLResponse, FileResponse
from pydantic import BaseModel
from typing import Union
import os
FastAPI
: The core FastAPI class used to create the application.Form
: Used for extracting form data from HTTP requests.Response
,HTMLResponse
,FileResponse
: Different types of responses returned by the API.HTMLResponse
is used for returning HTML content, andFileResponse
is used for returning files.BaseModel
: From Pydantic, used to define data models that can validate and parse incoming JSON data.Union
: Allows specifying multiple types for a variable, such as a variable that could be either a string orNone
.os
: A module for interacting with the operating system, used here for file handling.
class ScriptRequest(BaseModel):
script_type: str
content: str
ScriptRequest
: A Pydantic data model that defines the structure of the data being sent to the/generate_script
endpoint.script_type
: A string that specifies the type of script to generate (python
orbash
).content
: The content of the script provided by the user.
This model helps in validating the input and ensuring the correct data type is used.
@app.get("/", response_class=HTMLResponse)
def read_root():
html_content = """
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Script Generator</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/tailwind.min.css" rel="stylesheet">
</head>
<body class="bg-gray-100 flex items-center justify-center min-h-screen">
<div class="bg-white p-8 rounded-lg shadow-lg w-full max-w-lg">
<h1 class="text-2xl font-bold text-center mb-6">Script Generator</h1>
<form action="/generate_script" method="post">
<div class="mb-4">
<label for="script_type" class="block text-gray-700 font-medium mb-2">Select Script Type:</label>
<select id="script_type" name="script_type" class="block w-full mt-1 p-2 border border-gray-300 rounded-md">
<option value="python">Python</option>
<option value="bash">Bash</option>
</select>
</div>
<div class="mb-4">
<label for="script_content" class="block