I am trying to connect to postgres from my node project. So far this is my code
var pg = require('pg');
var connectionString = 'postgress://username:mypssword#localhost:5432/dbname';
var client = new pg.Client(connectionString);
client.connect(function(err) {
if (err) {
console.log(err);
}
});
I get this error:
{
[Error: connect ECONNREFUSED]
code: 'ECONNREFUSED',
errno: 'ECONNREFUSED',
syscall: 'connect'
}
I really need help on this
it should be postgres:// not postgess:
also you could use an object instead of the string as documented here: pg.Client
Error: connect ECONNREFUSED means that you're trying to connect to something that won't allow it (and thus is refusing the connection). Make sure your connectionString is correct. The one issue I can see from here is that it starts with:
postgress://
instead of
postgres://
(You have an extra s).
I was also facing the same issue for a local Postgres connection. Here your application is not able to establish a connection with Postgres database. Try this solution for Windows OS, replace string "localhost" with "host.docker.internal".
So your new URL will be
postgres://DbUser:DbPass#host.docker.internal:5432/DbName
Related
What I want to accomplish is probably the simplest thing ever. I just want to connect to mongodb atlas free tier M0 in nodejs using mongodb driver. I already have created a free account and cluster.
Here is my simple code:
const mongoclient = require('mongodb').MongoClient;
const URI = 'mongodb+srv://mohammed:mypassword#lebran-0qf7m.gcp.mongodb.net/test?retryWrites=true';
mongoclient.connect(URI, { useNewUrlParser: true }, (err, client) => {
if(err) throw err;
console.log('mongodb connected');
db = client.db('mern');
})
Here is what happens when I run the file:
Mohammeds-MacBook-Pro:mern ahmed$ node server.js
/Users/ahmed/Projects/mern/server.js:13
if(err) throw err;
^
Error: queryTxt ESERVFAIL lebran-0qf7m.gcp.mongodb.net
at QueryReqWrap.onresolve [as oncomplete] (dns.js:199:19)
I also tried mongo shell with the following command:
mongo "mongodb+srv://lebran-0qf7m.gcp.mongodb.net/mern" --username mohammed
here is the output I get:
MongoDB shell version v4.0.6
Enter password:
connecting to: mongodb://lebran-shard-00-00-0qf7m.gcp.mongodb.net.:27017,lebran-shard-00-01-0qf7m.gcp.mongodb.net.:27017,lebran-shard-00-02-0qf7m.gcp.mongodb.net.:27017/mern?gssapiServiceName=mongodb&ssl=true
2019-02-20T22:48:57.232+0300 E QUERY [js] Error: Authentication failed. :
connect#src/mongo/shell/mongo.js:343:13
#(connect):1:6
exception: connect failed
I am sure I enter my password right. I have changed several ones and none of them work. I have my IP listed as white list. I also have an admin account. All the prerequisites I can think of.
I am able to connect to the local server but not to the Atlas. This really beginning to drive me crazy.
Any help is greatly appreciated...
**UPDATE:
I just deployed my app to heroku and you know what? It connects!! I could not get it to connect using my computer though. So probably it has to do something with my location or my connection, probably the location.
This issue is totally driving me insane. I spent months with this, trying to make a SIMPLE NODE APP WORK. I finally managed to make an APP work in a nice server (Heroku) and with mysql. Problem? The server only accepts postgres. And this is my nightmare. I just cannot make it work. Searched dozens of webs and problems, all of them with the same error log as me... but I just cannot figure what to do. I'm totally idiot at configuring things, I cannot even start programming my app.
Error: connect ECONNREFUSED 127.0.0.1:5432
at Object._errnoException (util.js:1022:11)
at _exceptionWithHostPort (util.js:1044:20)
at TCPConnectWrap.afteeConnect [as oncomplete] (net.js:1198:14)
My start of server.js
const pg = require('pg');
const connectionString = process.env.DATABASE_URL || 'postgres://myrole:12345#localhost:5432/mydb';
And here the error.
var pool = new pg.Pool();
pool.connect().then(client => {
It crashes right at connection.
I did everything I searched for. I created "myrole" login role with all permission, password "12345", to connect to "mydb" database. I opened "pgAdmin4" application. Connected to "PostgreSQL 10" and "mydb". I saw that the first one connects to port 3000. I tried port 3000 in the connection string. I searched for the service at Windows. It's running. I JUST DID EVERYTHING and nothing works... I installed and made MySQL database to run in local in just 2 hours. But Heroku doesn't accept MySQL and I don't want to put any credit card. What's happening here?
I was having the same issue and I'll put my situation here and hopefully help someone else.
I was testing some AWS Lambda functions and since the code runs in a container and the container has its own localhost so my postgres connection was failing because there is no postgres server running on the container. Remember that your machine's localhost is not the same as the container's one, if your app is running inside a container the instead of localhost use your machine IP.
in your case, you shuld include connectionString inside new Pool() as property of Object
var pool = new pg.Pool({connectionString}); pool.connect().then()
or here is a more detailed version
let c = {
host: 'localhost',
port: 5432,
user: 'user',
password: 'password',
database: 'mydb',
options: `application_name=${app}&application_cmd=${cmd}`
};
const connection_string = {connectionString : `postgresql://${c.user}:${c.password}#${c.host}:${c.port}/${c.database}?${c.options}`};
const pool = new Pool(connection_string);
more details can be found here node-postgres.com
I have a web app setup using nodejs and mongodb and backbonejs.
When I run my app remotely and try to redirect to a different route through the uri, for example: http://www.myapp.com/route I get a net error.
In my route.js file I have the following:
var mongodb = require('mongodb');
var db = new mongodb.Db('dbname', new mongodb.Server('xx.xx.xxx.xxx', 27017, {}));
where xx.xx.xxx.xxx is my public ip. However, when I change this to anything other than "localhost" and try to run node server.js in the root of my app I get the following error:
Listening on port 3000...
/var/www/html/pages/node_modules/mongodb/lib/server.js:236
process.nextTick(function() { throw err; })
^
Error: connect ECONNREFUSED
at exports._errnoException (util.js:746:11)
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1012:19)
I have already uncommented bindIp in my /etc/mongod.conf file as suggested in other posts. I did this only to test and just to get it to work, but I plan to go back and play with the ip tables if I get this to work.
How can I access my app remotely?
I have done some googling but haven't found anything..
My setup is like this:
OS X, boot2docker, everything local except mongolabs database.
The project is working fine when it's not inside docker.
I am trying to run my nodejs project inside a docker image. I have done this before, but not with a database connection requirement. The problem is that my node app crashes on startup with the information:
/src/node_modules/mongoose/node_modules/mongodb/lib/server.js:228
process.nextTick(function() { throw err; })
^
Error: getaddrinfo ESRCH
at errnoException (dns.js:37:11)
at Object.onanswer [as oncomplete] (dns.js:124:16)
Does anyone have any idea how to solve this? Is there a DNS flag inside docker that can be set or is anything blocking my connection to the outside?
EDIT:
I connect to my mongodb on mongolabs through mongoose.
var configDB = require('./config/database.js');
mongoose.connect(configDB.url);
and my passport.js file looks like this:
module.exports = {
'url' : 'mongodb://<user>:<password>#ds045027.mongolab.com:45027/database
};
I'm trying to connect to a mongodb from my web application. However, I get an auth failed error from mongo when I specify the database I want to connect to. If I do not specify the db, then to connection is successful.
I have checked the spelling and if the database exits with the mongo command line show dbs
var dbURI = 'mongodb://root:pwd#localhost:27017/dbname';
mongoose.connect(dbURI, function(err) {
if (err) throw err;
});
C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\base.js:245
throw message;
^
MongoError: auth failed
at Object.toError (C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\utils.js:114:11)
at C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.js:1130:31
at C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.js:1847:9
at Server.Base._callHandler (C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\base.js:445:41)
at C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\server.js:478:18
at MongoReply.parseBody (C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\responses\mongo_reply.js:68:5)
at null.<anonymous> (C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\server.js:436:20)
at emit (events.js:95:17)
at null.<anonymous> (C:\Users\David\Documents\Bitbucket\productWebsite\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection\connection_pool.js:201:13)
at emit (events.js:98:17)
I'm using Bitnami Mean stack for Windows
Can someone tell me what I am forgetting?
It matters which database you try to authenticate to. Authenticate to the database where the user was created. You can switch to using other databases once authenticated.
You might want to do something like this...
var opt = {
user: config.username,
pass: config.password,
auth: {
authdb: 'admin'
}
};
var connection = mongoose.createConnection(config.database.host, 'mydatabase', config.database.port, opt);
'authdb' option is the database you created the user under.
In my experience, I found that the reason might be the version difference between the mongoose and mongoDB. In my package.json the mongoose version is the 3.8.5 and my mongoDB version is 3.0.4, I changed the mongoose version 3.8.5 to 4.1.5 and ran the command:
npm update
and ran the app, that worked for me.