# Sanic API
---
前面的課程有教你建立虛擬環境及安裝 Sanic
那現在
就來寫後端吧 :D
---
# Sanic 基本介紹
Sanic 是一個非同步的網頁伺服器函式庫
---
建立 hello.py
```python=
from sanic import Sanic
from sanic.response import json
app = Sanic()
@app.route("/")
async def hello(request):
return json({"message": "Hello!"})
```
---
執行 hello.py
```
python -m sanic hello.app
```
---
---
# HTTP GET Parameters
---
修改 hello.py json() 內的值
至
```json
{"args": request.args}
```
```python=
from sanic import Sanic
from sanic.response import json
app = Sanic()
@app.route("/")
async def hello(request):
return json({"args": request.args})
```
並存取以下網址
http://127.0.0.1:8000/?arg1=val1&arg2=val2
---
---
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