Sanic with json

信息

原始 MD by 羅宏

Note: 還記得 Sanic 嗎？ 上次我們教 Sanic 只有教到 GET 怎麼用，這次來教 POST

---

from sanic import Sanic
from sanic.response import json

app = Sanic()

@app.route("/", methods=["GET", "POST"])
async def get(request):
    if request.method == "GET":
        return json({"message": "hello!"})
    elif request.method == "POST":
        _ = {
            "type": str(type(request.json)),
            "body": request.json
        }
        return json(_)

app.run(host="127.0.0.1", port=8000)

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Insomnia 打開 首先測試 GET 回傳內容與程式碼相似

return json({"message": "hello!"})

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取得json特定的值

Note: request.json => dict

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    else if request.method == "POST":
        return json(request.json)

|| \/

    else if request.method == "POST":
        return json(request.json["text"])

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結果

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現在 使用其他HTTP方法嘗試 嘗試不存在的 API 路徑

Note: 是不是發現被擋住了 而且不是json 接下來我們來替換原本的錯誤訊息

---

Sanic 會丟的例外 (exception)

NotFound
MethodNotSupported
ServerError

---

...之前的import
from traceback import format_exc
from sanic.log import logger
from sanic.exceptions import (
NotFound, 
MethodNotSupported, 
ServerError
)
...之前的app.route

@app.exception(NotFound)
async def on_404(request, ex):
    _ = {"message": "NOT_FOUND"}
    return json(_, status=404)
    
@app.exception(MethodNotSupported)
async def on_405(request, ex):
    _ = {"message": "METHOD_NOT_SUPPORTED"}
    return json(_, status=405)500
    
@app.exception(Exception)
async def on_500(request, ex):
    _ = {"message": "INTERNAL_SERVER_ERROR"}
    logger.error("Error occured in {}: {}".format(request.url, ex))
    logger.error(format_exc())
    return json(_, status=500)

---

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挑戰 做一個抽獎機 輸入格式為 json

["Isabelle", "Nook", "K.K. Slider", "Marbel"]

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