from fastapi import FastAPI
from pydantic import BaseModel
import time

app = FastAPI(title="Test API (no serial)")

class Echo(BaseModel):
    msg: str

@app.get("/health")
def health():
    return {"ok": True, "ts": time.time()}

@app.get("/ping")
def ping():
    return {"pong": True}

@app.post("/echo")
def echo(body: Echo):
    return {"echo": body.msg}