2
获取数据库数据的简单云端功能不起作用。Firebase超时的云端函数
getusermessage()
不工作
错误:
Function execution took 60002 ms, finished with status: 'timeout'
Index.JS用于获取数据库的结果。
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
const cors = require('cors')({origin: true});
// Take the text parameter passed to this HTTP endpoint and insert it into the
// Realtime Database under the path /messages/:pushId/original
exports.addMessage = functions.https.onRequest((req, res) => {
// Grab the text parameter.
const original = req.query.text;
// Push the new message into the Realtime Database using the Firebase Admin SDK.
admin.database().ref('/messages').push({original: original}).then(snapshot => {
// Redirect with 303 SEE OTHER to the URL of the pushed object in the Firebase console.
res.redirect(303, snapshot.ref);
});
});
// Listens for new messages added to /messages/:pushId/original and creates an
// uppercase version of the message to /messages/:pushId/uppercase
exports.makeUppercase = functions.database.ref('/messages/{pushId}/original')
.onWrite(event => {
// Grab the current value of what was written to the Realtime Database.
const original = event.data.val();
console.log('Uppercasing', event.params.pushId, original);
const uppercase = original.toUpperCase();
// You must return a Promise when performing asynchronous tasks inside a Functions such as
// writing to the Firebase Realtime Database.
// Setting an "uppercase" sibling in the Realtime Database returns a Promise.
return event.data.ref.parent.child('uppercase').set(uppercase);
});
var db = admin.database();
exports.getUserMessage = functions.https.onRequest((req, res) => {
var query = db.ref("messages").orderByKey();
query.once("value")
.then(function(snapshot) {
snapshot.forEach(function(childSnapshot) {
var key = childSnapshot.key;
// childData will be the actual contents of the child
var childData = childSnapshot.val();
});
});
});
什么是O做错了?
@你猜是对的,但我没有得到你的答案,因为我说我正在尝试云功能。你能指出我在getUserMessage()中做了什么错误吗? –
正如我所说的,你的函数没有产生对客户端的响应。你绝对需要发送回复。有关更多详细信息,请参阅HTTPS函数的文档,尤其是名为“终止HTTP函数”的部分。 https://firebase.google.com/docs/functions/http-events –
@twister_void你错过了函数Doug提到的return语句 –