cannot connect loopback with mongodb - node.js

i'm trying to execute the commande "slc run" to access to API loopback but ther's a problem with mongodb even if i run mongod it display this error :
MongoError: Authentication failed.
at Function.MongoError.create (C:\Users\abdessamad\ingeweb_workspace\roll-lo
opback\node_modules\mongodb-core\lib\error.js:31:11)
at C:\Users\abdessamad\ingeweb_workspace\roll-loopback\node_modules\mongodb-
core\lib\connection\pool.js:483:72
at authenticateStragglers (C:\Users\abdessamad\ingeweb_workspace\roll-loopba
ck\node_modules\mongodb-core\lib\connection\pool.js:429:16)
at Connection.messageHandler (C:\Users\abdessamad\ingeweb_workspace\roll-loo
pback\node_modules\mongodb-core\lib\connection\pool.js:463:5)
at Socket.<anonymous> (C:\Users\abdessamad\ingeweb_workspace\roll-loopback\n
ode_modules\mongodb-core\lib\connection\connection.js:319:22)
at emitOne (events.js:96:13)
at Socket.emit (events.js:189:7)
at readableAddChunk (_stream_readable.js:176:18)
at Socket.Readable.push (_stream_readable.js:134:10)
at TCP.onread (net.js:551:20)

Related

connect my noSQL(mongoDB) database with my nodeJS project. But it is not working fine

I am trying to connect my nodejs with mongoDB but it is not working fine as the following result below.
**
(node:11776) DeprecationWarning: Mongoose: mpromise (mongoose's default promise library) is deprecated, plug in your o
wn promise library instead: http://mongoosejs.com/docs/promises.html
{ MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0
.1:27017]
at Pool.<anonymous> (D:\KIT\YEAR II\Project\Nodejs\Vidjot\node_modules\mongodb-core\lib\topologies\server.js:336:3
5)
at emitOne (events.js:116:13)
at Pool.emit (events.js:211:7)
at Connection.<anonymous> (D:\KIT\YEAR II\Project\Nodejs\Vidjot\node_modules\mongodb-core\lib\connection\pool.js:2
80:12)
at Object.onceWrapper (events.js:317:30)
at emitTwo (events.js:126:13)
at Connection.emit (events.js:214:7)
at Socket.<anonymous> (D:\KIT\YEAR II\Project\Nodejs\Vidjot\node_modules\mongodb-core\lib\connection\connection.js
:187:49)
at Object.onceWrapper (events.js:315:30)
at emitOne (events.js:116:13)
at Socket.emit (events.js:211:7)
at emitErrorNT (internal/streams/destroy.js:64:8)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
name: 'MongoError',
message: 'failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1
:27017]' }
**
Here is my source code
Make sure your mongo server is running # localhost:27017 and you have directories created to store data.
start using this command:
>mongod --port 27017 --dbpath c:\data\db

Mongoose deployment issues

I am trying to connect to Mongolab through the Expressjs. But when I run ,I am getting failed to connect to the server
Error Message :
MongoError: failed to connect to server [ds033066.mlab.com:33066] on first con
nect [MongoError: connect ETIMEDOUT 54.80.215.206:33066]
at Pool.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mongoose\
node_modules\mongodb-core\lib\topologies\server.js:328:35)
at emitOne (events.js:96:13)
at Pool.emit (events.js:188:7)
at Connection.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mon
goose\node_modules\mongodb-core\lib\connection\pool.js:280:12)
at Connection.g (events.js:292:16)
at emitTwo (events.js:106:13)
at Connection.emit (events.js:191:7)
at Socket.<anonymous> (C:\Users\rkishore\Documents\node\node_modules\mongoos
e\node_modules\mongodb-core\lib\connection\connection.js:177:49)
at Socket.g (events.js:292:16)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at emitErrorNT (net.js:1277:8)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickCallback (internal/process/next_tick.js:104:9)
name: 'MongoError',
message: 'failed to connect to server [ds033066.mlab.com:33066] on first conne
ct [MongoError: connect ETIMEDOUT 54.80.215.206:33066]'
Any Help/Suggestion greatly appreciated.

nodejs, http, legacy servers, and "HPE_UNEXPECTED_CONTENT_LENGTH"

Running a simple http request in nodejs for web crawling purposes.
Unfortunately, one website we're trying to crawl is configured such that it has the Content-Length header twice.
This is throwing an error on nodejs:
Error: Parse Error
at Error (native)
at Socket.socketOnData (_http_client.js:363:20)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at readableAddChunk (_stream_readable.js:176:18)
at Socket.Readable.push (_stream_readable.js:134:10)
at TCP.onread (net.js:548:20) bytesParsed: 239, code:'HPE_UNEXPECTED_CONTENT_LENGTH' },
isOperational: true,
bytesParsed: 239,
code: 'HPE_UNEXPECTED_CONTENT_LENGTH'
I'm trying to find a workaround that doesn't involve downgrading my nodejs server... Any ideas?

React Twitter OAuth Callback Status Code 401

Wanted to test Twitter OAuth callback with my React app on localhost.
Saw that you could use http://127.0.0.1:8000 in the Twitter App Console for both Website and Callback URL fields for it to work with localhost.
const twitterStream = new Twitter(twitterConfig.TWITTER_CONFIG);
I am using the twitter npm and getting the following 401 status code error --
Error: Status Code: 401
at Request.<anonymous> (/Users/me/Projects/project-name/node_modules/twitter/lib/twitter.js:277:28)
at emitOne (events.js:96:13)
at Request.emit (events.js:188:7)
at Request.onRequestResponse (/Users/me/Projects/pproject-name/node_modules/request/request.js:986:10)
at emitOne (events.js:96:13)
at ClientRequest.emit (events.js:188:7)
at HTTPParser.parserOnIncomingClient [as onIncoming] (_http_client.js:474:21)
at HTTPParser.parserOnHeadersComplete (_http_common.js:99:23)
at TLSSocket.socketOnData (_http_client.js:363:20)
at emitOne (events.js:96:13)
at TLSSocket.emit (events.js:188:7)
at readableAddChunk (_stream_readable.js:176:18)
at TLSSocket.Readable.push (_stream_readable.js:134:10)
at TLSWrap.onread (net.js:548:20)
Appreciate the help.
You need to set http://127.0.0.1:8000/auth/twitter/callback as the callback URL in application settings back on Twitter.

API Pod failed to connect to mongo pod in the same kubernetes cluster

I was running a nodejs api as a pod on a google compute engine managed by kubernetes. The API was connecting to database well but then it failed suddenly showing this error:
listening to http server on 0.0.0.0:8080...
events.js:160
throw er; // Unhandled 'error' event
^
MongoError: failed to connect to server [mongo:27017] on first connect [MongoError: getaddrinfo ENOTFOUND mongo mongo:27017]
at Pool.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/topologies/server.js:328:35)
at emitOne (events.js:96:13)
at Pool.emit (events.js:188:7)
at Connection.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/connection/pool.js:274:12)
at Connection.g (events.js:292:16)
at emitTwo (events.js:106:13)
at Connection.emit (events.js:191:7)
at Socket.<anonymous> (/usr/src/app/node_modules/mongodb-core/lib/connection/connection.js:177:49)
at Socket.g (events.js:292:16)
at emitOne (events.js:96:13)
at Socket.emit (events.js:188:7)
at connectErrorNT (net.js:1021:8)
at _combinedTickCallback (internal/process/next_tick.js:80:11)
at process._tickDomainCallback (internal/process/next_tick.js:128:9)
I tried to restart the prods, to delete and re-create containers but no success?
this is how I connect to database:
mongoose.connect(process.env.MONGO_DEV_URL || process.env.MONGODB_URI || 'mongodb://mongo:27017:yaxiDb/yaxiDb', { useMongoClient: true });
How can I debug this, where could be the problem?
I just found the solution, the order of creating services matters. I've deleted all services that use that database and re-create them:
kubectl delete -f containers/backend/
kubectl create -f containers/backend/

Resources