javascript - Firebase JS http 函数返回从 axios API GET 调用收到的错误响应

Question

我编写了以下 HTTP firebase JS 函数，该函数使用 Postman 返回错误的状态 500 错误响应，即使来自 API 服务的 axios GET 调用响应已返回正确的 200 状态响应(由下面的控制台输出屏幕截图确认)

exports.doshiiMenuUpdatedWebhook = functions.https.onRequest((req, res) => {

  if (req.method === 'PUT') {
    return res.status(403).send('Forbidden!');
  }

  return cors(req, res, () => {

    let verify = req.query.verify;

    if (!verify) {

      verify = req.body.verify;

    }

    let locationId = req.body.data.locationId
    let posId = req.body.data.posId
    let type = req.body.data.type
    let uri = req.body.data.uri
    let itemUri = req.body.data.itemUri

    console.log('locationId', locationId);
    console.log('posId', posId);
    console.log('type', type);
    console.log('uri', uri);
    console.log('itemUri', itemUri);

    const options = {
        headers: {'authorization': 'Bearer ' + req.query.verify}
      };

    return axios.get(uri, options)
      .then(response => {

        console.log('response data: ', response.data);
        console.log('response status: ', response.status);
        console.log('response statusText: ', response.statusText);
        console.log('response headers: ', response.headers);
        console.log('response config: ', response.config);

        return res.status(200).json({
          message: response
        })
      })
      .catch(err => {
        return res.status(500).json({
          error: err
        })
      });
  });
});

在 Postman 中，我希望看到“Status: 200”响应，但我得到了:

Firebase 控制台中没有除此之外的错误报告:

Answer 1

正如快报中所解释的documentation :

res.json([body])

Sends a JSON response. This method sends a response (with the correct content-type) that is the parameter converted to a JSON string using JSON.stringify().

The parameter can be any JSON type, including object, array, string, Boolean, number, or null, and you can also use it to convert other values to JSON.

经过我们通过评论/聊天进行的“调试”，似乎

{message: response}

传递给 json() 的对象会生成错误。

<小时/>

遵循HTTP Cloud Functions documentation ，其中指出:

Important: Make sure that all HTTP functions terminate properly. By terminating functions correctly, you can avoid excessive charges from functions that run for too long. Terminate HTTP functions with res.redirect(), res.send(), or res.end().

并且由于您在聊天中解释说您“只需要返回状态代码”并且您“希望将 json 数据保存到:admin.database().ref(/venue-menus/$ {locationId}/菜单)",

我建议您执行以下操作:

exports.doshiiMenuUpdatedWebhook = functions.https.onRequest((req, res) => {

    if (req.method === 'PUT') {
        return res.status(403).send('Forbidden!');
    }

    cors(req, res, () => {

        let verify = req.query.verify;

        if (!verify) {
            verify = req.body.verify;
        }

        let locationId = req.body.data.locationId
        let posId = req.body.data.posId
        let type = req.body.data.type
        let uri = req.body.data.uri
        let itemUri = req.body.data.itemUri

        const options = {
            headers: { 'authorization': 'Bearer ' + req.query.verify }
        };

        axios.get(uri, options)
            .then(response => {
                console.log('response data: ', response.data);
                return admin.database().ref(`/venue-menus/${locationId}/menu`).set(response.data)

            })
            .then(response => {
                return res.status(200).end()
            })
            .catch(err => {
                return res.status(500).send({
                    error: err
                })
            })
    })
});