我的应用程序在本地运行良好。当我部署到Heroku时，发布路线会出现503错误。 GET路由似乎工作正常，因为其中之一是使用Google OAuth登录所需的路由。注销路由也是GET路由，它也可以正常工作。如果有人能告诉我我在做什么错，我将不胜感激。这是我的服务器代码：
let express = require("express");
let cors= require("cors");
let mysql = require("mysql");
const util = require("util");
const keys = require("./config/keys");
const passport = require("passport");
const passportSetup = require("./config/passport-setup");
const bodyParser = require("body-parser");
const flash= require("connect-flash");
const path= require("path");
const cookieSession = require("cookie-session");
let app = express();
app.use(bodyParser.json());
app.use(express.static(__dirname));
app.use(cookieSession({
//below equals 2 hours
maxAge:120*60 * 1000,
// maxAge:5000,
keys:[keys.session.cookieKey],
httpOnly:false
}));
app.use(passport.initialize());
app.use(passport.session());
if (process.env.NODE_ENV === 'production') {
console.log("inside prod");
app.use(express.static(path.join(__dirname,'client/build')));
}
console.log("1");
let connection = keys.connection;
//this prevents the database connection from closing
//by querying this meaningless query every five seconds
setInterval(()=>{
connection.query("SELECT 1");
}, 5000);
console.log("connection");
console.log(connection)
app.get("/google", passport.authenticate("google",{
scope:['profile'],
failureFlash:"failure"
}),(req,res)=>{
// console.log(req.flash());
console.log("/google route");
});
//callback route for google to redirect to
app.get("/auth/google/redirect", passport.authenticate("google"), (req,res)=>{
console.log("isinde redirect");
console.log(req.user)
res.redirect("myurl.com?token="+req.user.token);
});
app.get("/logoutExp",(req,res)=>{
console.log("logout");
req.session=null;
req.logout();
res.redirect("/");
})
app.post("/addExercise", (request, res)=>{
console.log(request.body);
let workoutId = request.body.exObj.workoutId; //this comes from the request body;
let numberOfSets = request.body.exObj.numSets;
let maxReps = request.body.exObj.maxReps;
let exerciseName = request.body.exObj.exerciseName;
let weight = request.body.exObj.weight
addExercise(connection, workoutId, exerciseName, weight).then(results=>{
let exerciseId = results.insertId;
// response.send(exerciseId);
return addSets(connection, exerciseId, numberOfSets, maxReps)
}).then(response=>{
return getWorkout(connection, workoutId)
}).then(response=>{
res.send(response);
}).catch(err=>{
console.log(err);
})
})
app.post("/retrieveHistory", (req,res)=>{
console.log(req.session);
if(req.session.passport.user.token === req.body.token){
let userId = req.session.passport.user.userId;
console.log(userId);
workoutHistory(connection, userId).then(response=>{
let arr=[];
for(let i=0; i<response.length; i++){
arr[i]=response[i].workoutId;
}
// console.log(arr);
if(response.length ===0){
res.send("0");
}
// console.log("inside workouthistory then");
// console.log(arr);
return getExercisesInWorkout(connection, arr).then(response=>{
// console.log("inside wh geiw");
// console.log(response);
return getWorkout(connection, arr).then(response=>{
// console.log("sldkfjhasldj")
res.send(response);
})
})
}).catch(err=>{
console.log(err);
})
} else {
res.send("not logged in anymore");
}
})
//this route retrieves the ongoing incomplete workout if one exists
app.post("/retrieveCurrent", (req, res)=>{
let globalRes = res;
if(req.session.passport.user.token === req.body.token ){
let userId = req.session.passport.user.userId;
// console.log(userId);
//checking to see if any incomplete workouts exist, if one does, it will be retrieved.
//if not, one will be created
checkForIncompleteWorkout(connection, userId).then(response=>{
// console.log("inside checkForIncompleteWorkout")
// console.log(response.length);
if(response.length < 1){
res.send(response);
} else{
let workoutId = response[0].workoutId;
getWorkout(connection, workoutId).then(response=>{
// console.log("inside else gw");
// console.log(response);
res.send(response[0]);
}).catch(err=>{
console.log(err)
});
}
}).catch(err=>{console.log(err)})
} else {
}
// res.send(req.session.user);
})
app.post("/makeNewWorkout", (req,res)=>{
if(req.session.passport.user.token === req.body.token ){
let userId = req.session.passport.user.userId;
//creating new workout
makeNewWorkout(connection,userId).then(response=>{
// console.log("inside mnw");
// console.log(response);
//retrieving new workout to send back to client
return getWorkout(connection, response.insertId)
}).then(response=>{
res.send(response[0])
})
}
})
app.post("/completeWorkout", (req,res)=>{
if(req.session.passport.user.token === req.body.token ){
let workoutId = req.body.workoutId;
// console.log(workoutId);
completeWorkout(connection, workoutId).then(response=>{
res.send(response);
}).catch(err=>{
res.send(err);
})
}
})
app.post("/addRep", (req,res)=>{
if(req.session.passport.user.token === req.body.token ){
let setId = req.body.setId;
let workoutId = req.body.workoutId;
// console.log(workoutId);
addRep(connection, setId).then(response=>{
return getWorkout(connection, workoutId).then(response=>{
res.send(response);
});
// return getExercisesInWorkout(connection, )
}).catch(error=>{
res.send(error);
})
}
})
app.post("/notesHandler", (req,res)=>{
if(req.session.passport.user.token === req.body.token ){
let workoutId = req.body.workoutId;
let notes = req.body.notes;
notesHandler(connection, workoutId, notes).then(response=>{
return getWorkout(connection, workoutId).then(response=>{
res.send(response);
})
}).catch(err=>{
res.send(err);
})
}
})
// if (process.env.NODE_ENV === 'production') {
// app.use(express.static(path.join(__dirname, 'client','build')));
// }
function getIdOfMostRecentWorkout(connection, userId){
return new Promise((resolve,reject)=>{
connection.query("SELECT workoutId FROM workouts WHERE userId =? ORDER BY workoutDate DESC LIMIT 1", userId,(error,results)=>{
if(error)reject(error);
resolve(results);
})
})
}
function checkIfWorkoutExists(connection, workoutId){
return new Promise((resolve,reject)=>{
connection.query("SELECT COUNT(*) AS exist FROM workouts WHERE workoutId = ?",workoutId,(error,results)=>{
if(error) reject(error);
resolve(results);
})
})
}
const port = process.env.PORT || 4000;
let http = require("http");
let server = http.createServer(app,(req,res)=>{
res.writeHead(200, {"Access-Control-Allow-Origiin": "*"})
});
app.get("/service-worker.js", (req, res) => {
console.log("service workerssssss");
res.sendFile(path.join(__dirname + "app/client","build", "service-worker.js"));
});
app.get('/*', (req, res) => {
console.log("catchallll");
console.log(req.hostname);
console.log(req.path);
console.log(path.join(__dirname + '/client', 'build', 'index.html'));
res.sendFile(path.join(__dirname + '/client', 'build', 'index.html'));
})
server.listen(port, ()=>{
console.log("Listening on "+ port)
});
这是日志中的一些内容。以下是其中一种POST路由的错误（所有POST路由均给出相同的错误）：
2019-02-05T23:22:46.076348+00:00 heroku[router]: at=error code=H12
desc="Request timeout" method=POST path="/retrieveCurrent" host=*myurl* request_id=bbcd3e11-2e99-4321-b519-1635a282edcb
fwd="107.223.198.1" dyno=web.1 connect=1ms service=30001ms status=503 bytes=0
protocol=https
以下是其中一个GET路由的日志（所有GET路由都给出相同的消息）：
2019-02-05T23:22:46.273636+00:00 heroku[router]: at=info method=GET
path="/logoutExp" host=*myurl* request_id=9833444b-e6a1-4771-a325-5be0d3788c2c
fwd="107.223.198.1" dyno=web.1 connect=1ms service=3ms status=302 bytes=381
protocol=https
答案 0 :(得分：0)
问题出在我的数据库上。我在本地添加了一些列，而没有更新heroku服务器上数据库中的表。这就是为什么它超时。谢谢。