Chapter 6 'npm run seed' doesn't work

[xiaoqufengdi]

when I execute 'npm run seed', throw a error.

seed

node -r dotenv/config ./scripts/seed.js

An error occurred while attempting to seed the database: VercelPostgresError: VercelPostgresError - 'missing_connection_string ': You did not supply a 'connectionString' and no 'POSTGRES_URL' env var was found. at createPool (E:\remote\temp\next-learn\dashboard\starter-example\node_modules.store@[email protected]\node_modules @vercel\postgres\dist\chunk-PKSWROYW.cjs:158:11) at Object.get (E:\remote\temp\next-learn\dashboard\starter-example\node_modules.store@[email protected]\node_modules @vercel\postgres\dist\chunk-PKSWROYW.cjs:201:16) at main (E:\remote\temp\next-learn\dashboard\starter-example\scripts\seed.js:164:27) at Object. (E:\remote\temp\next-learn\dashboard\starter-example\scripts\seed.js:174:1) at Module._compile (node:internal/modules/cjs/loader:1218:14) at Module._extensions..js (node:internal/modules/cjs/loader:1272:10) at Module.load (node:internal/modules/cjs/loader:1081:32) at Module._load (node:internal/modules/cjs/loader:922:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12) at node:internal/main/run_main_module:23:47 { code: 'missing_connection_string' }

[minthu2019]

same error bro How can I make it

[ryuushihou]

@minthu2019 @xiaoqufengdi I think there needs to be an equal sign between the attribute and the value. like this

[xiaoqufengdi]

Ok, I'm understand.

[delbaoliveira]

Hey @xiaoqufengdi, were you able to find a solution?

[xiaoqufengdi]

@delbaoliveira Yes, you see the picture

[normalscene]

There is some issue that the seed command doesn't work. I have ensured that the db url is valid one and is online. nslookup confirmed the availability of the db url.

Here is the error:

`saturn@rings:~/mystuff/html/nextjs-dashboard$ npm run seed

seed node -r dotenv/config ./scripts/seed.js

node:events:489 throw er; // Unhandled 'error' event ^

Error [ERR_SOCKET_CONNECTION_TIMEOUT]: Socket connection timeout at new NodeError (node:internal/errors:399:5) at internalConnectMultiple (node:net:1099:20) at Timeout.internalConnectMultipleTimeout (node:net:1638:3) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) Emitted 'error' event on WebSocket instance at: at emitErrorAndClose (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:1016:13) at ClientRequest. (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:864:5) at ClientRequest.emit (node:events:511:28) at TLSSocket.socketErrorListener (node:_http_client:495:9) at TLSSocket.emit (node:events:511:28) at emitErrorNT (node:internal/streams/destroy:151:8) at emitErrorCloseNT (node:internal/streams/destroy:116:3) at process.processTicksAndRejections (node:internal/process/task_queues:82:21) { code: 'ERR_SOCKET_CONNECTION_TIMEOUT' }

Node.js v20.2.0 saturn@rings:~/mystuff/html/nextjs-dashboard$ `

here is the nslookup command output:

` saturn@rings:~/mystuff/html/nextjs-dashboard$ nslookup ep-crimson-band-a4lpfsvn-pooler.us-east-1.aws.neon.tech Server: 8.8.8.8 Address: 8.8.8.8#53

Non-authoritative answer: ep-crimson-band-a4lpfsvn-pooler.us-east-1.aws.neon.tech canonical name = us-east-1.aws.neon.tech. Name: us-east-1.aws.neon.tech Address: 23.23.229.9 Name: us-east-1.aws.neon.tech Address: 44.207.148.149 Name: us-east-1.aws.neon.tech Address: 100.26.116.133 Name: us-east-1.aws.neon.tech Address: 52.20.107.131 Name: us-east-1.aws.neon.tech Address: 34.194.100.28 Name: us-east-1.aws.neon.tech Address: 44.199.59.172

saturn@rings:~/mystuff/html/nextjs-dashboard$ `

Any idea what could be wrong ?

[normalscene]

There is some issue that the seed command doesn't work. I have ensured that the db url is valid one and is online. nslookup confirmed the availability of the db url.

Here is the error:

`saturn@rings:~/mystuff/html/nextjs-dashboard$ npm run seed

seed node -r dotenv/config ./scripts/seed.js

node:events:489 throw er; // Unhandled 'error' event ^

Error [ERR_SOCKET_CONNECTION_TIMEOUT]: Socket connection timeout at new NodeError (node:internal/errors:399:5) at internalConnectMultiple (node:net:1099:20) at Timeout.internalConnectMultipleTimeout (node:net:1638:3) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) Emitted 'error' event on WebSocket instance at: at emitErrorAndClose (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:1016:13) at ClientRequest. (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:864:5) at ClientRequest.emit (node:events:511:28) at TLSSocket.socketErrorListener (node:_http_client:495:9) at TLSSocket.emit (node:events:511:28) at emitErrorNT (node:internal/streams/destroy:151:8) at emitErrorCloseNT (node:internal/streams/destroy:116:3) at process.processTicksAndRejections (node:internal/process/task_queues:82:21) { code: 'ERR_SOCKET_CONNECTION_TIMEOUT' }

Node.js v20.2.0 saturn@rings:~/mystuff/html/nextjs-dashboard$ `

here is the nslookup command output:

` saturn@rings:~/mystuff/html/nextjs-dashboard$ nslookup ep-crimson-band-a4lpfsvn-pooler.us-east-1.aws.neon.tech Server: 8.8.8.8 Address: 8.8.8.8#53

Non-authoritative answer: ep-crimson-band-a4lpfsvn-pooler.us-east-1.aws.neon.tech canonical name = us-east-1.aws.neon.tech. Name: us-east-1.aws.neon.tech Address: 23.23.229.9 Name: us-east-1.aws.neon.tech Address: 44.207.148.149 Name: us-east-1.aws.neon.tech Address: 100.26.116.133 Name: us-east-1.aws.neon.tech Address: 52.20.107.131 Name: us-east-1.aws.neon.tech Address: 34.194.100.28 Name: us-east-1.aws.neon.tech Address: 44.199.59.172

saturn@rings:~/mystuff/html/nextjs-dashboard$ `

Any idea what could be wrong ?

after 2 hours of R&D, i found that the particular node version has some issue that it causes failure for some unknown reasons which I did not bother my self to investigate as that is not my goal.

Bottom line: if you are using version <Node.js v20.2.0> and encounter a socket connection time out error .. then just upgrade node version and the seeding script will run just fine. thanks.

saturn@rings:~/mystuff/html/nextjs-dashboard$ node -r dotenv/config ./scripts/seed.js
node:events:489
      throw er; // Unhandled 'error' event
      ^

Error [ERR_SOCKET_CONNECTION_TIMEOUT]: Socket connection timeout
    at new NodeError (node:internal/errors:399:5)
    at internalConnectMultiple (node:net:1099:20)
    at Timeout.internalConnectMultipleTimeout (node:net:1638:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
Emitted 'error' event on WebSocket instance at:
    at emitErrorAndClose (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:1016:13)
    at ClientRequest.<anonymous> (/home/saturn/mystuff/html/nextjs-dashboard/node_modules/ws/lib/websocket.js:864:5)
    at ClientRequest.emit (node:events:511:28)
    at TLSSocket.socketErrorListener (node:_http_client:495:9)
    at TLSSocket.emit (node:events:511:28)
    at emitErrorNT (node:internal/streams/destroy:151:8)
    at emitErrorCloseNT (node:internal/streams/destroy:116:3)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
  code: 'ERR_SOCKET_CONNECTION_TIMEOUT'
}

Node.js v20.2.0
saturn@rings:~/mystuff/html/nextjs-dashboard$ node -v

[spreet6999]

I am facing the same issue as @xiaoqufengdi:

Here is how my seed.js looks like:

const { db } = require('@vercel/postgres');
const {
 invoices,
 customers,
 revenue,
 users,
} = require('../app/lib/placeholder-data.js');
const bcrypt = require('bcrypt');

async function seedUsers(client) {
 try {
  await client.sql`CREATE EXTENSION IF NOT EXISTS "uuid-ossp"`;
  // Create the "users" table if it doesn't exist
  const createTable = await client.sql`
   CREATE TABLE IF NOT EXISTS users (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    email TEXT NOT NULL UNIQUE,
    password TEXT NOT NULL
   );
  `;

  console.log(`Created "users" table`);

  // Insert data into the "users" table
  const insertedUsers = await Promise.all(
   users.map(async (user) => {
    const hashedPassword = await bcrypt.hash(user.password, 10);
    return client.sql`
    INSERT INTO users (id, name, email, password)
    VALUES (${user.id}, ${user.name}, ${user.email}, ${hashedPassword})
    ON CONFLICT (id) DO NOTHING;
   `;
   }),
  );

  console.log(`Seeded ${insertedUsers.length} users`);

  return {
   createTable,
   users: insertedUsers,
  };
 } catch (error) {
  console.error('Error seeding users:', error);
  throw error;
 }
}

async function seedInvoices(client) {
 try {
  await client.sql`CREATE EXTENSION IF NOT EXISTS "uuid-ossp"`;

  // Create the "invoices" table if it doesn't exist
  const createTable = await client.sql`
  CREATE TABLE IF NOT EXISTS invoices (
  id UUID DEFAULT uuid_generate_v4() PRIMARY KEY,
  customer_id UUID NOT NULL,
  amount INT NOT NULL,
  status VARCHAR(255) NOT NULL,
  date DATE NOT NULL
 );
`;

  console.log(`Created "invoices" table`);

  // Insert data into the "invoices" table
  const insertedInvoices = await Promise.all(
   invoices.map(
    (invoice) => client.sql`
    INSERT INTO invoices (customer_id, amount, status, date)
    VALUES (${invoice.customer_id}, ${invoice.amount}, ${invoice.status}, ${invoice.date})
    ON CONFLICT (id) DO NOTHING;
   `,
   ),
  );

  console.log(`Seeded ${insertedInvoices.length} invoices`);

  return {
   createTable,
   invoices: insertedInvoices,
  };
 } catch (error) {
  console.error('Error seeding invoices:', error);
  throw error;
 }
}

async function seedCustomers(client) {
 try {
  await client.sql`CREATE EXTENSION IF NOT EXISTS "uuid-ossp"`;

  // Create the "customers" table if it doesn't exist
  const createTable = await client.sql`
   CREATE TABLE IF NOT EXISTS customers (
    id UUID DEFAULT uuid_generate_v4() PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    email VARCHAR(255) NOT NULL,
    image_url VARCHAR(255) NOT NULL
   );
  `;

  console.log(`Created "customers" table`);

  // Insert data into the "customers" table
  const insertedCustomers = await Promise.all(
   customers.map(
    (customer) => client.sql`
    INSERT INTO customers (id, name, email, image_url)
    VALUES (${customer.id}, ${customer.name}, ${customer.email}, ${customer.image_url})
    ON CONFLICT (id) DO NOTHING;
   `,
   ),
  );

  console.log(`Seeded ${insertedCustomers.length} customers`);

  return {
   createTable,
   customers: insertedCustomers,
  };
 } catch (error) {
  console.error('Error seeding customers:', error);
  throw error;
 }
}

async function seedRevenue(client) {
 try {
  // Create the "revenue" table if it doesn't exist
  const createTable = await client.sql`
   CREATE TABLE IF NOT EXISTS revenue (
    month VARCHAR(4) NOT NULL UNIQUE,
    revenue INT NOT NULL
   );
  `;

  console.log(`Created "revenue" table`);

  // Insert data into the "revenue" table
  const insertedRevenue = await Promise.all(
   revenue.map(
    (rev) => client.sql`
    INSERT INTO revenue (month, revenue)
    VALUES (${rev.month}, ${rev.revenue})
    ON CONFLICT (month) DO NOTHING;
   `,
   ),
  );

  console.log(`Seeded ${insertedRevenue.length} revenue`);

  return {
   createTable,
   revenue: insertedRevenue,
  };
 } catch (error) {
  console.error('Error seeding revenue:', error);
  throw error;
 }
}

async function main() {
 const client = await db.connect();

 await seedUsers(client);
 await seedCustomers(client);
 await seedInvoices(client);
 await seedRevenue(client);

 await client.end();
}

main().catch((err) => {
 console.error(
  'An error occurred while attempting to seed the database:',
  err,
 );
});

Here is how my .env file looks like:

POSTGRES_VERCEL_DB_URL="<placeholder>"
POSTGRES_VERCEL_DB_PRISMA_URL="<placeholder>"
POSTGRES_VERCEL_DB_URL_NO_SSL="<placeholder>"
POSTGRES_VERCEL_DB_URL_NON_POOLING="<placeholder>"
POSTGRES_VERCEL_DB_USER="<placeholder>"
POSTGRES_VERCEL_DB_HOST="<placeholder>"
POSTGRES_VERCEL_DB_PASSWORD="<placeholder>"
POSTGRES_VERCEL_DB_DATABASE="<placeholder>"

AUTH_SECRET=""
AUTH_URL=http://localhost:3000/api/auth

Please look at screenshot attached for error info

[belloshehu]

I got this error:

node:internal/modules/cjs/loader:1147
  throw err;
  ^

Error: Cannot find module 'C:\Users\bello\Development\nextjs-dashboard\node_modules\bcrypt\lib\binding\napi-v3\bcrypt_lib.node'
Require stack:
- C:\Users\bello\Development\nextjs-dashboard\node_modules\bcrypt\bcrypt.js
- C:\Users\bello\Development\nextjs-dashboard\scripts\seed.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1144:15)
    at Module._load (node:internal/modules/cjs/loader:985:27)
    at Module.require (node:internal/modules/cjs/loader:1235:19)
    at require (node:internal/modules/helpers:176:18)
    at Object.<anonymous> (C:\Users\bello\Development\nextjs-dashboard\node_modules\bcrypt\bcrypt.js:6:16)
    at Module._compile (node:internal/modules/cjs/loader:1376:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1435:10)
    at Module.load (node:internal/modules/cjs/loader:1207:32)
    at Module._load (node:internal/modules/cjs/loader:1023:12)
    at Module.require (node:internal/modules/cjs/loader:1235:19) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'C:\\Users\\bello\\Development\\nextjs-dashboard\\node_modules\\bcrypt\\bcrypt.js',
    'C:\\Users\\bello\\Development\\nextjs-dashboard\\scripts\\seed.js'
  ]
}

Node.js v20.11.0

[madamis]

Am getting this

seed node -r dotenv/config ./scripts/seed.js

node:events:497 throw er; // Unhandled 'error' event ^

AggregateError [ETIMEDOUT]: at internalConnectMultiple (node:net:1116:18) at internalConnectMultiple (node:net:1184:5) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) Emitted 'error' event on WebSocket instance at: at emitErrorAndClose (/home/mada/next/nextjs-dashboard/node_modules/ws/lib/websocket.js:1016:13) at ClientRequest. (/home/mada/next/nextjs-dashboard/node_modules/ws/lib/websocket.js:864:5) at ClientRequest.emit (node:events:519:28) at TLSSocket.socketErrorListener (node:_http_client:500:9) at TLSSocket.emit (node:events:519:28) at emitErrorNT (node:internal/streams/destroy:169:8) at emitErrorCloseNT (node:internal/streams/destroy:128:3) at process.processTicksAndRejections (node:internal/process/task_queues:82:21) { code: 'ETIMEDOUT', [errors]: [ Error: connect ETIMEDOUT 52.20.107.131:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '52.20.107.131', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:5419:4ecf:2a7c:cf52:31ae:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:5419:4ecf:2a7c:cf52:31ae', port: 443 }, Error: connect ETIMEDOUT 44.207.148.149:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '44.207.148.149', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:544d:621b:957c:81:5e5b:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:544d:621b:957c:81:5e5b', port: 443 }, Error: connect ETIMEDOUT 23.23.229.9:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '23.23.229.9', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:540b:c14a:4d57:1251:234d:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:540b:c14a:4d57:1251:234d', port: 443 }, Error: connect ETIMEDOUT 44.199.59.172:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '44.199.59.172', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:5421:acd1:6284:5a8a:d6e9:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:5421:acd1:6284:5a8a:d6e9', port: 443 }, Error: connect ETIMEDOUT 100.26.116.133:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '100.26.116.133', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:5454:82a4:8209:20f8:a5c1:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:5454:82a4:8209:20f8:a5c1', port: 443 }, Error: connect ETIMEDOUT 34.194.100.28:443 at createConnectionError (node:net:1646:14) at Timeout.internalConnectMultipleTimeout (node:net:1705:38) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -110, code: 'ETIMEDOUT', syscall: 'connect', address: '34.194.100.28', port: 443 }, Error: connect ENETUNREACH 2600:1f18:240c:543b:a8aa:14fb:d008:11fe:443 - Local (:::0) at internalConnectMultiple (node:net:1180:16) at Timeout.internalConnectMultipleTimeout (node:net:1710:5) at listOnTimeout (node:internal/timers:575:11) at process.processTimers (node:internal/timers:514:7) { errno: -101, code: 'ENETUNREACH', syscall: 'connect', address: '2600:1f18:240c:543b:a8aa:14fb:d008:11fe', port: 443 } ] }

Node.js v21.7.1

[madamis]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

[fath-nasrudin]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

It works for me. Thanks madamis!

[Murimi79]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

Worked for me too. Thanks madamis. 😊

[muhtasimhafiz]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

thanks man

[vanthinh01052001]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

thanks, it ran

[vrashabh-k]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

Thanks man, it worked

[seanchuatech]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

This works for me. :) Thank you!

[DAN-BIWOTT]

I switched to this node version and it worked. Now using node v18.20.0 (npm v10.5.0)

Arigatou, Big-man. You just saved a life.

[abdulrehman3725]

I tried my node to v18.20.0 but did not worked

I guess they have updated this

Now I have updated to the v21 and it worked like a charm