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from fastapi import FastAPI, Request |
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from fastapi.responses import HTMLResponse |
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from fastapi.staticfiles import StaticFiles |
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from fastapi.templating import Jinja2Templates |
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import os |
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import datetime |
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from pydantic import BaseModel |
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import uvicorn |
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from fastapi.middleware.cors import CORSMiddleware |
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app = FastAPI(title="FastAPI Web App") |
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app.add_middleware( |
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CORSMiddleware, |
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allow_origins=["*"], |
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allow_credentials=True, |
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allow_methods=["*"], |
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allow_headers=["*"], |
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) |
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os.makedirs('templates', exist_ok=True) |
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templates = Jinja2Templates(directory="templates") |
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if not os.path.exists('templates/index.html'): |
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os.makedirs('templates', exist_ok=True) |
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with open('templates/index.html', 'w') as f: |
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f.write(''' |
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<!DOCTYPE html> |
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<html> |
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<head> |
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<title>FastAPI Web App on Hugging Face Spaces</title> |
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<style> |
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body { |
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font-family: Arial, sans-serif; |
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max-width: 800px; |
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margin: 0 auto; |
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padding: 20px; |
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line-height: 1.6; |
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} |
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.container { |
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border: 1px solid #ddd; |
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border-radius: 5px; |
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padding: 20px; |
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margin-top: 20px; |
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} |
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button { |
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background-color: #4CAF50; |
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color: white; |
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padding: 10px 15px; |
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border: none; |
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border-radius: 4px; |
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cursor: pointer; |
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margin-right: 10px; |
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} |
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button:hover { |
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background-color: #45a049; |
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} |
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pre { |
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background-color: #f5f5f5; |
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padding: 10px; |
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border-radius: 4px; |
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overflow-x: auto; |
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} |
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</style> |
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</head> |
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<body> |
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<h1>Welcome to FastAPI Web App on Hugging Face Spaces</h1> |
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<p>The current server time is: {{ current_time }}</p> |
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<div class="container"> |
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<h2>API Demo</h2> |
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<button id="getTimeBtn">Get Current Time</button> |
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<button id="sendEchoBtn">Send Echo Request</button> |
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<div id="result"> |
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<pre id="output">Results will appear here...</pre> |
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</div> |
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</div> |
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<script> |
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document.getElementById('getTimeBtn').addEventListener('click', async () => { |
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try { |
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const response = await fetch('/api/time'); |
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const data = await response.json(); |
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document.getElementById('output').textContent = JSON.stringify(data, null, 2); |
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} catch (error) { |
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document.getElementById('output').textContent = 'Error: ' + error.message; |
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} |
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}); |
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document.getElementById('sendEchoBtn').addEventListener('click', async () => { |
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try { |
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const testData = { |
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message: "Hello from the client!", |
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timestamp: new Date().toISOString() |
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}; |
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const response = await fetch('/api/echo', { |
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method: 'POST', |
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headers: { |
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'Content-Type': 'application/json' |
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}, |
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body: JSON.stringify(testData) |
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}); |
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const data = await response.json(); |
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document.getElementById('output').textContent = JSON.stringify(data, null, 2); |
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} catch (error) { |
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document.getElementById('output').textContent = 'Error: ' + error.message; |
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} |
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}); |
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</script> |
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</body> |
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</html> |
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''') |
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@app.get("/", response_class=HTMLResponse) |
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async def index(request: Request): |
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"""Render the home page.""" |
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current_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") |
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return templates.TemplateResponse("index.html", {"request": request, "current_time": current_time}) |
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@app.get("/api/time") |
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async def get_time(): |
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"""API endpoint that returns the current time.""" |
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current_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") |
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return {"time": current_time} |
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class EchoRequest(BaseModel): |
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"""Model for the echo request body.""" |
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message: str = None |
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timestamp: str = None |
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@app.post("/api/echo") |
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async def echo(data: EchoRequest): |
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"""API endpoint that echoes back the JSON data sent to it.""" |
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return {"status": "success", "echo": data.dict()} |
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if __name__ == '__main__': |
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uvicorn.run("app:app", host="0.0.0.0", port=7860, reload=True) |
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