React Native 和 FastAPI 问题

Question

我在创建 React Native 应用程序时遇到了问题。我使用 FastAPI 作为后端。在向我的后端进行此调用时，没有任何反应。

  function sendAkt() {

    fetch("https://192.168.1.5:8000/newActivity", {

      method: "POST",

      headers: {

        'Accept': "application/json",

        "Content-Type": "application/json",

      },

      body: JSON.stringify({

        name: ime,

        desc: opis,

        place: mjesto,

        team: tim,

        typeOf: pickerSel,

        id: users.id,

      }),

    })

    .then(_=> console.log('rea for the minute'))

    .catch(e => console.log(e))

  }

没有错误，后端控制台不会报告对后端路由进行过调用。看来提取只是挂起。大约 3 分钟后，控制台中会弹出此信息

Network request failed

- node_modules\whatwg-fetch\dist\fetch.umd.js:505:17 in setTimeout$argument_0

- node_modules\react-native\Libraries\Core\Timers\JSTimers.js:135:14 in _callTimer

- node_modules\react-native\Libraries\Core\Timers\JSTimers.js:387:16 in callTimers

- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:425:19 in __callFunction

- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:112:6 in __guard$argument_0

- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:373:10 in __guard

- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:111:4 in callFunctionReturnFlushedQueue

* [native code]:null in callFunctionReturnFlushedQueue

这是我调用的后端路由

@app.post('/newActivity')

async def unos(request: NewActivity):

    print('route Reaches')

    # name = request.name

    # desc = request.desc

    # place = request.place

    # team = request.team

    # typeOf = request.typeOf

    # id = request.id

    # year = 10

    # new_activity = Activities(activity_type_id=typeOf, academic_year_id=year,

    #                           description=desc,

    #                           user_id=id, team_id=team, title=name, location=place)

    # session.add(new_activity)

    # session.commit()

    return JSONResponse(content='Uspijeh')

这是我后端的 CORS 设置

Answer 1

真是愚蠢的问题。我正在调用本地服务器而https不是http. Changing to http` 修复了它