Currently, you just log on to the ssh with putty.
We're trying to run a js file which then basically creates an empty log file, currently we're just getting this error:
port : '1157', ^^^^ SyntaxError: Unexpected identifier at exports.runInThisContext (vm.js:73:16) at Module._compile (module.js:443:25) at Object.Module._extensions..js (module.js:478:10) at Module.load (module.js:355:32) at Function.Module._load (module.js:310:12) at Function.Module.runMain (module.js:501:10) at startup (node.js:129:16) at node.js:814:3
Here's the code we think is the problem:
var mysqlInfo;
mysqlInfo = {
host : https//www.random.com, port : '2332',
user : 'test#localhost', password : '32323232',
database : 'test_installation',
charset : 'utf8_general_ci'
};
we're not sure how to format it
Another problem is we get multiple connecting issues, but I think this is the main problem.
details edited out for security, but same format as our actual file
There are few things which i noticed,
first install mysql node module
then require it in you js
the code which you wrote is for exporting module. and as per your question it seems you want to connect to mysql db.
please use the code given below and run it using node connect.js command it will work for you.
var mysql = require("mysql");
var con = mysql.createConnection({
host : https//www.random.com,
port : '2332',
user : 'test#localhost',
password : '32323232',
database : 'test_installation',
charset : 'utf8_general_ci'
});
con.connect(function(err){
if(err){
console.log('Error connecting to Db');
return;
}
console.log('Connection established');
});
Thanks
Amit
Related
I'm following this video tutorial on the MERN stack and I'm unable to connect to MongoDB for some very strange reason. This issue has been frustrating me quite a bit since I'm probably just missing something very basic, so please forgive me if the answer is painfully obvious to you.
The video uses mlab for MongoDB, which is no longer available, so I'm instead using MongoDB Atlas. The key I'm supposed to use to connect my application to the database is this:
mongodb+srv://<username>:<password>#fs-shopping-list.6rzkd.mongodb.net/<dbname>?retryWrites=true&w=majority
My password doesn't contain any special characters, and my IP address is on the whitelist. As for dbname, I have one database named "data" with a collection called "items," so I'm using "data" for dbname.
The code in question that is causing my problem is in a file called server.js:
const db = require('./config/keys').mongoURI; // I keep my key in a separate file in the way shown in the video
// Connect to MongoDB
mongoose
.connect(db, { useNewUrlParser: true, useUnifiedTopology: true })
.then(() => console.log('MongoDB connected.'))
.catch(err => console.log(err));
I keep getting this error when I try to run the server (I edited out my name from some of the paths):
{ MongooseServerSelectionError: bad auth Authentication failed.
at NativeConnection.Connection.openUri (/fs_shopping_list/node_modules/mongoose/lib/connection.js:828:32)
at Mongoose.connect (/fs_shopping_list/node_modules/mongoose/lib/index.js:335:15)
at Object.<anonymous> (/fs_shopping_list/server.js:15:6)
at Module._compile (internal/modules/cjs/loader.js:689:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
at Module.load (internal/modules/cjs/loader.js:599:32)
at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
at Function.Module._load (internal/modules/cjs/loader.js:530:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:743:3)
message: 'bad auth Authentication failed.',
reason:
TopologyDescription {
type: 'ReplicaSetNoPrimary',
setName: null,
maxSetVersion: null,
maxElectionId: null,
servers:
Map {
'fs-shopping-list-shard-00-01.6rzkd.mongodb.net:27017' => [ServerDescription],
'fs-shopping-list-shard-00-02.6rzkd.mongodb.net:27017' => [ServerDescription],
'fs-shopping-list-shard-00-00.6rzkd.mongodb.net:27017' => [ServerDescription] },
stale: false,
compatible: true,
compatibilityError: null,
logicalSessionTimeoutMinutes: null,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
commonWireVersion: null } }
Can someone please help me find out what I'm doing wrong so I can continue the tutorial? Thank you for your time.
EDIT: I don't think adding another account for database access will solve the problem, since admin accounts on MongoDB have the ability to read and write to their databases. The only thing I can think of that is possibly stopping me is maybe my Norton antivirus, although I'm not sure how to test this hypothesis.
Here an example of how I do it with mongoose:
const connectToMongo = async () => {
try {
await mongoose.connect(mongoUrl, { useNewUrlParser: true });
console.log('connected to MongoDB');
} catch(error) {
console.log('error connection to MongoDB:', error.message);
}
};
Here is an example of the mongoUrl: mongo+srv://username:password#cluster0-ipl5c.mongodb.net/collectionname?retryWrites=true
Please make sure that you create a user to read and write to the database that isn't the admin account. The URI string you get from the "Connect" button might use the admin account even though that's not the account you want to use in the URI string, so keep that in mind. If you did that and you're still unable to connect, please use this checklist:
check that correct IP is whitelisted
check that user has correct rights
check that you are using the right database name (collection)
check if you have special characters in your password (https://docs.atlas.mongodb.com/troubleshoot-connection/#special-pass-characters)
Try to add dbName in options:
await mongoose.connect('mongodb://root:example#mongo:27017', { dbName: "blog" });
i am currently trying to connect to a MySQL server on the internet using Node.Js with the mysql or the mysql2 NPM dependencies to use queries and other related stuff.
the code is simple...
//i import my dependency
const mysql = require('mysql2') //either 'mysql' or 'mysql2'
//i create my pool to create connections as needed
var conn = mysql.createPool({
host: 'some_database_i_have_access_to.mysql.uhserver.com',
user: 'valid_user',
password: 'valid_password',
database: 'some_existing_database'
})
//i try to connect (this is the part where it fails)
conn.getConnection((err,conn) => {
if (err) throw err //<- the error is thrown here
//i do query stuff
conn.query("SELECT * FROM atable",(err,res,firlds) => {
if(err) throw err
console.log(JSON.stringify(res))
})
//i close the connection
conn.end()
})
yet i always get an Error like this:
Error: read ECONNRESET
at TCP.onStreamRead (internal/stream_base_commons.js:111:27)
--------------------
at Protocol._enqueue (C:\Users\Aluno\Desktop\my-project\node_modules\mysql\lib\protocol\Protocol.js:144:48)
at Protocol.handshake (C:\Users\Aluno\Desktop\my-project\node_modules\mysql\lib\protocol\Protocol.js:51:23)
at Connection.connect (C:\Users\Aluno\Desktop\my-project\node_modules\mysql\lib\Connection.js:118:18)
at Object.<anonymous> (C:\Users\Aluno\Desktop\my-project\private\dtp-mysql.js:13:6)
at Module._compile (internal/modules/cjs/loader.js:707:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:718:10)
at Module.load (internal/modules/cjs/loader.js:605:32)
at tryModuleLoad (internal/modules/cjs/loader.js:544:12)
at Function.Module._load (internal/modules/cjs/loader.js:536:3)
at Module.require (internal/modules/cjs/loader.js:643:17)
all i know about the error is that the connection abruptly closes in one of the sides as stated in this question (Node js ECONNRESET), but nothing more, and creating singular connections does not solve this issue for me either.
any fixes to that?
you can also ref below url.
error while inserting LARGE volume data in mysql by using node.js （error code: 'ECONNRESET'）
I have fixed this issue. It is caused by the default definition max_allowed_packet. Find max_allowed_packet in my.ini (C:\ProgramData\MySQL\MySQL Server 5.7). Update to 'max_allowed_packet=64M'. Restart mysql. Done.
Hi I know this was asked some time ago, but is it possibly because you're using:
conn.end()
Since you're using a Pooled connection, I think you can release the connection using
conn.release()
Or
conn.destroy()
So I'm trying to code with node.js for the first time, and have very small prior coding knowledge. I'm trying to code a steam trading bot, but I'm already stumped at the basics of it. This is the code I have, titled "bot.js":
const SteamUser = require('steam-user');
const client = new SteamUser();
const config = require('./config.json');
const logOnOptions = {
accountName: config.username,
password: config.password
};
client.logOn(logOnOptions);
client.on('loggedOn', () => {
console.log('Succesfully logged on.');
});
In the config.json file I just have the username and password which are fine. My problem is that when typing in node bot.js after installing steam-user, I get this error:
module.js:471
throw err;
^
Error: Cannot find module 'C:\Users\Name\Desktop\bot\bot.js'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:389:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:504:3
Help?
This is not an error with your code, but an error node is throwing saying it can't find bot.js in your directory C:\Users\Name\Desktop\bot
Verify that that is the directory where bot.js lives and that the file name is indeed bot.js. Also make sure there are no hidden extensions, the file could possibly be bot.js.txt.
Iam running a simple web server with basic send and receive operations to be performed.Here the main aim of this basic server file is to start the listner of the server on some port and we have to connect a client to this port and a Hello World Message is displayed.But when i run the file there is throw error occuring.The code is shown below
var db, http, onRequest ,portnum, restFunc ,returncode;
db = require('db');
db.init();
portnum =3000;
//rest function goes here
onRequest =function (req , res) {
var bodyStr ='';
//function is called for each chunck of data received
req.on('data',function(chunck) {
bodyStr += chunck.toString();
});
//function is called when all the data has been received
//request has been sent now build respons
req.on('end',function() {
var argArray ,buflen ,contenttype ,outobj ,outputStr,recid;
outputStr = "Hello World<br>\n";
outputStr +="method:" +req.method +"\n";
outputStr += "Posted data is: " + bodyStr + "\n";
res.end(outputStr);
});
}
http = require("http");
http.createServer(onRequest).listen(portnum);
console.log("Server started ,listening on port#" +portnum);
The error Log is as follows
module.js:327
throw err;
^
Error: Cannot find module 'db'
at Function.Module._resolveFilename (module.js:325:15)
at Function.Module._load (module.js:276:25)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object.<anonymous> (C:\Users\basic_server.js:3:6)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Function.Module.runMain (module.js:441:10)
After this error i tried to install missing db package using npm but still the error remains same.
C:\Users\Sai Kiran>npm install db
db#1.0.6 node_modules\db
├── ds#1.2.0
├── redis#0.6.7
├── mysql#0.9.4 (hashish#0.0.4)
└── aws-sdk#0.9.7-pre.8 (xmlbuilder#8.2.2, xml2js#0.2.4)
I'm trying to create an sort of plugin that users can simply add to a website and it will make COR calls to my app and return JSON that will be handled by the client side javascript.
This is working how I want it to, but now I'm trying to make sure that the user logs into my app before being allowed to receive any JSON from my server side app.
From here on I'll refer to my Node.js API as Server and the straight JS plugin as Client
I found a npm plugin for node that handles OAuth2 on the Server, but I'm not sure I'm really understanding how to use it. Here's the link and I found this for taking care of it on the Client side.
Client -> App initializer:
define [
'oauth2'
], (oauth2) ->
App =
Models: {}
Collections: {}
Views: {}
initialize: () ->
$.get "/javascripts/mu-config.json", (config) =>
#api_url = config.api
#site = config.site
#credentials = config.credentials
#make_oauth_call()
make_oauth_call: ->
#xhr = new oauth2.OAuth2XMLHttpRequest
authorizeEndpoint: "#{this.api_url}/callback"
tokenEndpoint: "#{this.api_url}/oauth/access_token"
clientID: this.credentials.clientID
clientSecret: this.credentials.clientSecret
localStoragePrefix: "oauth2.#{this.site.name}"
requestAuthorization: (callback) ->
console.log 'what?'
console.log callback
#xhr.onreadystatechange = () ->
console.log "do something"
#xhr.open "GET", "#{this.api_url}/notes?site=1&user=1"
#xhr.setRequestHeader 'Content-type', 'application/x-www-form-urlencoded'
#xhr.send "site=1&user=1"
So what works here? Well the #xhr.open ... does in fact grab JSON from the Server, but that's about it. I'm not getting any errors from the Client, but the console.log 'what?' does not fire and I don't believe anything is getting authenticated.
Server -> oauth.coffee
token = null
credentials =
clientID: "sparkmasterflex"
clientSecret: "bob_the_builder"
site: 'http://marking_up.dev'
OAuth2 = require('simple-oauth2') credentials
authorization_uri = OAuth2.AuthCode.authorizeURL
redirect_uri: 'http://localhost:3000/callback'
scope: 'sites'
state: '55fce6241c8e6432e8dfee583141aa58'
res.redirect(authorization_uri)
OAuth2.AuthCode.getToken
code: "something here"
redirect_uri: "http://localhost:3000/callback"
, saveToken
saveToken = (error, result) ->
console.log('Access Token Error', error.message) if error
token = OAuth2.AccessToken.create(result)
module.exports = OAuth2
Server -> router
express = require("express")
db = require "../database"
oauth2 = require "../oauth"
router = express.Router()
# GET home page.
router.get "/", (req, res) ->
res.render 'index',
title: "Hello world"
# Initial page redirecting to Github
router.get '/auth', (req, res) ->
res.redirect authorization_uri
# Callback service parsing the authorization token and asking for the access token
# router.get '/callback', (req, res) ->
router.route('/callback')
.get (req, res) ->
code = req.query.code
console.log '/callback'
oauth2.AuthCode.getToken
code: code
redirect_uri: 'http://localhost:3000/callback'
, saveToken
saveToken = (error, result) ->
console.log('Access Token Error', error.message) if error
token = oauth2.AccessToken.create(result)
module.exports = router
Running the node server I get this error:
/Users/raymondke99/Sites/marking_up_api/oauth.js:19
res.redirect(authorization_uri);
^
ReferenceError: res is not defined
at Object.<anonymous> (/Users/raymondke99/Sites/marking_up_api/oauth.js:19:1)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/raymondke99/Sites/marking_up_api/routes/index.js:7:10)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
I'm kinda at a loss here. The documentation for both of these seem pretty thorough but I still feel like I'm missing a huge chunk of information. Can anyone help and/or lead me to help?
Thank you
EDIT
I removed res.redirect() from oauth.coffee and I get the following error:
/Users/raymondke99/Sites/marking_up_api/node_modules/simple-oauth2/lib/core.js:16
throw new Error('Callback not provided on API call');
^
Error: Callback not provided on API call
at Object.api (/Users/raymondke99/Sites/marking_up_api/node_modules/simple-oauth2/lib/core.js:16:13)
at Object.getToken (/Users/raymondke99/Sites/marking_up_api/node_modules/simple-oauth2/lib/client/auth-code.js:34:8)
at Object.<anonymous> (/Users/raymondke99/Sites/marking_up_api/oauth.js:19:17)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/Users/raymondke99/Sites/marking_up_api/routes/index.js:7:10)
I have more than one router because I'm using expressjs and I'm not sure where I'm supposed to have the 'catch-all' redirect. Does it need to go into every router?
Why do you have "res.redirect(authorization_uri)" in the oath file? You seem to already have the GET endpoint in your router?