对于每个其他请求,状态 500“错误:无法处理该请求”

Kar*_*ård 2 javascript http-status-code-500 flutter google-cloud-functions firebase-cloud-messaging

我制作了一个 Flutter 应用程序,刚刚开始使用 Cloud Functions 向其他手机发送推送通知。我通过 API 调用来调用云函数,也就是说,消息被发送,我得到响应代码 200。但有趣的是,大约每隔一段时间(有时更多,有时更少)我得到回复:

状态代码:500,正文:“错误:无法处理请求”

这特别奇怪,因为目前,我每次都发送完全相同的消息!...正如,它是完全相同的 API 调用,没有标头和完全相同的正文。然而,我得到了不同的结果。问题可能是什么?

这是我的云功能:

const functions = require("firebase-functions");
const admin = require("firebase-admin");

exports.sendMsg = functions.https.onRequest((request, response) => {

  var decodedBody = JSON.parse(request.body);
  const message = decodedBody;

  // Send a message to the device corresponding to the provided
  // registration token:
  admin.initializeApp();
  admin.messaging().send(message)
      .then((res) => {
        // Response is a message ID string.
        console.log("Successfully sent message:", res);
        response.send("Message sent!\n\n" + res);
      })
      .catch((error) => {
        console.log("Error sending message:", error);
        response.send("Error sending message:\n\n" + error);
      });
});
Run Code Online (Sandbox Code Playgroud)

这是我的 API 调用:

import 'dart:convert';
import 'my_firebase.dart';
import 'dart:io';
import 'package:firebase_messaging/firebase_messaging.dart';

//...//
void msgFunction(){
  final FirebaseMessaging _fcm = FirebaseMessaging();
         await MyFirebase.myFutureFirebaseApp;
          String fcmToken = await _fcm.getToken();
          http.Response res;

          try {
            res = await http.post(
              'https://us-central1-<my_project>.cloudfunctions.net/sendMsg',
              body: jsonEncode({
                "notification": {
                  "title": "This is my title",
                  "body": "Accept Ride Request",
                },
                "data": {
                  "score": "850",
                  "time": "245",
                  "click_action": "FLUTTER_NOTIFICATION_CLICK",
                  "id": "1",
                  "status": "done",
                },
                "token": "$fcmToken",
              }
              ),
            );
          } catch (e) {
            print('Caught an error in API call!');
            print('e is: ${e.toString()}');
            if (res != null) print('Status code in apiCall() catch is ${res.statusCode}');
          }
}
Run Code Online (Sandbox Code Playgroud)

执行失败的在线函数日志:

Function execution started
Function execution took 173 ms, finished with status: 'crash'
Run Code Online (Sandbox Code Playgroud)

Kar*_*ård 5

解决了,我自己!

\n

问题显然是admin.initializeApp();命令,我有点怀疑......因为在某些时候,日志告诉我这个函数被调用了两次。

\n

解决方案是将其放在云函数之外,而不是放在云函数内部!像这样:

\n
const functions = require("firebase-functions");\nconst admin = require("firebase-admin");\nadmin.initializeApp();\n\nexports.sendMsg = functions.https.onRequest((request, response) => {\n\n  var decodedBody = JSON.parse(request.body);\n  const message = decodedBody;\n\n  // Send a message to the device corresponding to the provided\n  // registration token:\n  admin.messaging().send(message)\n      .then((res) => {\n        // Response is a message ID string.\n        console.log("Successfully sent message:", res);\n        response.send("Message sent!\\n\\n" + res);\n      })\n      .catch((error) => {\n        console.log("Error sending message:", error);\n        response.send("Error sending message:\\n\\n" + error);\n      });\n});\n
Run Code Online (Sandbox Code Playgroud)\n

这是视频号。Firebase Cloud Functions 视频系列教程中的第 2 部分让我明白了这一点:

\n

https://firebase.google.com/docs/functions/video-series

\n

这是一个很好的系列!我可以推荐它。

\n

和平!\xe2\x9c\x8c\xef\xb8\x8f

\n