Unable to connect to postgres in deno.js.
Here is the configuration:
const dbCreds = {
applicationName: "appname",
user: "user_sfhjwre",
database: "d9iu8mve7nen",
password: "68790f31eelkhlashdlkagsvADSDa52f9d8faed894c037ef6f9c9f09885603",
hostname: "ec2-345-34-97-212.eu-east-1.xx.amazonaws.com",
port: 5432,
};
export { dbCreds };
Usage:
import { Client } from "https://deno.land/x/postgres/mod.ts";
import { dbCreds } from "../config.ts";
const client = new Client(dbCreds);
await client.connect();
Also tried:
config = "postgres://user#localhost:5432/test?application_name=my_custom_app";
const client = new Client(config);
await client.connect();
Same result:
Uncaught Error: Unknown auth message code 1397113172
Is there anything wrong with the syntax, I can connect to the same db using prisma.
I have the PostgreSQL server in a remote server and, each time my public IP changes, I need to change the pg_hba.conf in order to set my new public IP as authorized for remote access.
Hope this helps.
Best regards.
Related
I'm a newbie with database and Vapor. I'm trying to put a vapor project on a Postgres database on a VPS but I had this error:
2022-08-05 11:18:26.611154+0200 Run[16315:261688] Swift/ErrorType.swift:200: Fatal error: Error raised at top level: PostgresNIO.PSQLError(base: PostgresNIO.PSQLError.Base.connectionError(underlying: NIOPosix.NIOConnectionError(host: "82.125.176.210", port: 5432, dnsAError: nil, dnsAAAAError: nil, connectionErrors: [NIOPosix.SingleConnectionFailure(target: [IPv4]82.125.176.210/82.125.176.210:5432, error: connection reset (error set): Operation timed out (errno: 60))])))
Here my code:
import Fluent
import FluentPostgresDriver
import Vapor
import Leaf
public func configure(_ app: Application) throws {
app.middleware.use(FileMiddleware(publicDirectory: app.directory.publicDirectory))
app.middleware.use(app.sessions.middleware)
let databaseName: String
let databasePort: Int
databaseName = "vapor_database"
databasePort = 5432
app.databases.use(.postgres(
hostname: "82.125.176.210",
port: databasePort,
username: Environment.get("DATABASE_USERNAME") ?? "456787555",
password: Environment.get("DATABASE_PASSWORD") ?? "456787555",
database: Environment.get("DATABASE_NAME") ?? databaseName
), as: .psql)
app.migrations.add(CreateUser())
app.migrations.add(CreateAcronym())
app.migrations.add(CreateCategory())
app.migrations.add(CreateAcronymCategoryPivot())
app.migrations.add(CreateToken())
switch app.environment {
case .development, .testing:
app.migrations.add(CreateAdminUser())
default:
break
}
app.migrations.add(AddTwitterURLToUser())
app.migrations.add(MakeCategoriesUnique())
app.logger.logLevel = .debug
try app.autoMigrate().wait()
app.views.use(.leaf)
// register routes
try routes(app)
}
A timeout error usually means that there's no route to the database server because it's being blocked by a firewall. (As opposed to a connection refused error if there's nothing listening on that port). Make sure you set a rule in the firewall to allow the Vapor app to connect
I have created a free cluster for mongodb atlas. Under that cluster I have created a database and a collection to test things out. As I was using node js driver 4.0 or above, this is the connection string I got:
mongodb+srv://myName:myPass#cluster0.2sjva.mongodb.net/myDb?retryWrites=true&w=majority
This is my backend code:
const { MongoClient } = require("mongodb");
// Connection URI
const uri =
"mongodb+srv://myName:myPass#cluster0.2sjva.mongodb.net/myDb?retryWrites=true&w=majority";
// Create a new MongoClient
const client = new MongoClient(uri);
async function run() {
try {
// Connect the client to the server
await client.connect();
// Establish and verify connection
await client.db("myDb").command({ ping: 1 });
console.log("Connected successfully to server");
} finally {
// Ensures that the client will close when you finish/error
await client.close();
}
}
run().catch(console.dir);
But when I run this code, I get this following error:
Error: querySrv ECONNREFUSED _mongodb._tcp.cluster0.2sjva.mongodb.net
at QueryReqWrap.onresolve [as oncomplete] (dns.js:210:19) {
errno: undefined,
code: 'ECONNREFUSED',
syscall: 'querySrv',
hostname: '_mongodb._tcp.cluster0.2sjva.mongodb.net'
}
Here is some information I can provide:
I have whitelisted my current Ip address, After this error I used 0.0.0.0. But the problem persists.
Os: Arch linux
I have also tried to use this connection string for older driver version: mongodb://... and that worked.
My question: why connection string for node js driver version > 4.0 doesn't work in my case?
Thank you for reading!
I tried to connect the MongoDB Atlas to my Deno Application using https://deno.land/x/mongo#v0.21.2 framework. I tried the below code to run my application. but I get an error No such host is known. (os error 11001) What went wrong here
Error
error: Uncaught Error: No such host is known. (os error 11001)
at unwrapResponse (rt\10_dispatch_json.js:24:13)
at sendAsync (rt\10_dispatch_json.js:75:12)
at async Object.connect (rt\30_net.js:221:13)
at async MongoClient.connect (client.ts:41:14)
at async mongodb.ts:33:1
Mongodb.ts File
import { MongoClient } from "https://deno.land/x/mongo#v0.21.0/mod.ts";
const client1 = new MongoClient();
await client1.connect("mongodb+srv://user1:MYPASSWORD#cluster0.hmdnu.mongodb.net/TestingDB?retryWrites=true&w=majority");
const db = client1.database("TestingDB");
export default db;
I used this command to run my server
deno run --allow-net --allow-write --allow-read --allow-plugin --unstable server.ts
I fixed this using https://www.youtube.com/watch?v=hhdhydffKKE this video reference
Follow these steps to fix this
import { MongoClient } from "https://deno.land/x/mongo#v0.21.0/mod.ts";
const client1 = new MongoClient();
await client.connect({
db: "<db>",
tls: true,
servers: [
{
host: "<host>",
port: 27017,
},
],
credential: {
username: "<user>",
password: "<password>",
db: "<db>",
mechanism: "SCRAM-SHA-1",
},
});
const db = client1.database("TestingDB");
export default db;
This is not mentions in the document, but this will help to fix the issue
<db> is the database name, you can get the database name by following these steps
Step-1
Step-2
To find the <host> follow these steps
Step -1
Step -2
Step -3
Thanks reading my issue.
Currently, I am using postgres (hobby-dev) on Heroku and facing this issue every time that I connect to the database.
error: Uncaught (in promise) Error: Unknown auth message code 1397113172
throw new Error(`Unknown auth message code ${code}`);
^
at Connection.handleAuth (connection.ts:197:15)
at Connection.startup (connection.ts:155:16)
at async Pool._createConnection (pool.ts:32:5)
at async pool.ts:61:7
at async Promise.all (index 0)
at async Pool._startup (pool.ts:63:25)
My application using Deno now
import { Pool } from "https://deno.land/x/postgres/mod.ts";
import { config } from "./config.ts";
const port = config.DB_PORT ? parseInt(config.DB_PORT || "") : undefined;
const POOL_CONNECTIONS = 20;
const dbPool = new Pool({
port,
hostname: config.DB_HOST,
user: config.DB_USER,
database: config.DB_NAME,
password: config.DB_PASS
}, POOL_CONNECTIONS);
export { dbPool };
Here is debug screen.
I have found this issue post and it mentioned about lacking ssl. Not sure how to do it on heroku.
I have tried some solutions, even change lib to pg and it still not work. I am very appreciated if any clue or help to fix this issue.
Note:
I read a document on heroku about "Heroku Postgres Connection Pooling is not available for Hobby-tier databases.". Then I switched to use Client with syntax similar like this to connect to Heroku postgres this:
import { Client } from "https://deno.land/x/postgres/mod.ts";
let config;
config = {
hostname: "localhost",
port: 5432,
user: "user",
database: "test",
applicationName: "my_custom_app"
};
// alternatively
config = "postgres://user#localhost:5432/test?application_name=my_custom_app";
const client = new Client(config);
await client.connect();
await client.end();
ref: https://deno-postgres.com/#/
Trying to connect to postgres using the pg client (following these instructions).
Here is my connection string var connectionString = "postgres://postgres:pass#localhost/ip:5432/chat";
Here's the error I'm getting trying to connect:
UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): error: database "ip:5432/twitchchat" does not exist
However, when I run pg_isready I get the response /tmp:5432 - accepting connections Which I read as telling me postgres is running on port 5432.
The database is very definitely existing.
Here's the simple connection code:
var pg = require('pg');
var connectionString =
"postgres://postgres:pass#localhost/ip:5432/chat";
var connection = new pg.Client(connectionString);
connection.connect();
What's happening here? How do I fix this?
Your connection string is malformed:
Change it to:
`"postgres://postgres:pass#localhost:5432/chat"`
The correct format is:
postgresql://[user]:[password]#[address]:[port]/[dbname]
Ok I fixed it with the following:
const { Client } = require('pg');
const connection = new Client({
user: 'postgres',
host: 'localhost',
database: 'chat',
password: 'pass',
port: 5432,
});
connection.connect();