learn FastApi. Api send disk space info, update with cron.

loader.py

# import uvicorn

if __name__ == "__main__":
    uvicorn.run("main:app", host="0.0.0.0", port=8000, log_level="info")

main.py

from typing import Union
import json

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    with open('./space.txt') as file:
        data = json.loads(file.read())
        result = {
                "datetime": data['datetime'],
                "total_used_gb": data['total'],
                "free_used_gb": data['free'],
                "percent_used": data['percent']}
        return result


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}

parse.py

import requests

resp = requests.get('http://127.0.0.1:8000')

print(resp, '\n')
print(type(resp.text), resp.text, '\n')
print(type(resp.json()), resp.json(), '\n')

print('---')

resp = requests.get('http://46.229.212.49:8000')

print(resp, '\n')
print(type(resp.text), resp.text, '\n')
print(type(resp.json()), resp.json(), '\n')

update_data.sh

DISK_SIZE_TOTAL=$(df -kh . | tail -n1 | awk '{print $2}')
DISK_SIZE_FREE=$(df -kh . | tail -n1 | awk '{print $4}')
DISK_PERCENT_USED=$(df -kh . | tail -n1 | awk '{print $5}')
DATETIME=$(date -uIseconds)

echo '{
  "datetime": "'$DATETIME'",
  "total": "'$DISK_SIZE_TOTAL'",
  "free": "'$DISK_SIZE_FREE'",
  "percent": "'$DISK_PERCENT_USED'"
}' > /home/arthur/learn/python/fastapi/space.txt