Skip to content

update: server startup logic to use next available port #1651

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

update: server startup logic to use next available port #1651

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
61 changes: 40 additions & 21 deletions src/bin.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@ import { createApp } from './app.js'
import { Observer } from './observer.js'
import { Data } from './service.js'

let currentPort = 0;

function help() {
console.log(`Usage: json-server [options] <file>

Expand Down Expand Up @@ -142,7 +144,7 @@ await db.read()
// Create app
const app = createApp(db, { logger: false, static: staticArr })

function logRoutes(data: Data) {
function logRoutes(data: Data, port : number) {
console.log(chalk.bold('Endpoints:'))
if (Object.keys(data).length === 0) {
console.log(
Expand All @@ -166,25 +168,42 @@ function randomItem(items: string[]): string {
return items.at(index) ?? ''
}

app.listen(port, () => {
console.log(
[
chalk.bold(`JSON Server started on PORT :${port}`),
chalk.gray('Press CTRL-C to stop'),
chalk.gray(`Watching ${file}...`),
'',
chalk.magenta(randomItem(kaomojis)),
'',
chalk.bold('Index:'),
chalk.gray(`http://localhost:${port}/`),
'',
chalk.bold('Static files:'),
chalk.gray('Serving ./public directory if it exists'),
'',
].join('\n'),
)
logRoutes(db.data)
})
function startServer (port : number) {
const server = app.listen(port);

server.on('listening', ()=>{
currentPort = port;
{
console.log(
[
chalk.bold(`JSON Server started on PORT :${port}`),
chalk.gray('Press CTRL-C to stop'),
chalk.gray(`Watching ${file}...`),
'',
chalk.magenta(randomItem(kaomojis)),
'',
chalk.bold('Index:'),
chalk.gray(`http://localhost:${port}/`),
'',
chalk.bold('Static files:'),
chalk.gray('Serving ./public directory if it exists'),
'',
].join('\n'),
)
logRoutes(db.data, currentPort);
}
})

server.on('error', (err: NodeJS.ErrnoException & { port?: number }) => {
if (err.code === 'EADDRINUSE') {
startServer(port+1); // recursion
} else {
console.error('Server error:', err);
}
})
}

startServer(port);

// Watch file for changes
if (process.env['NODE_ENV'] !== 'production') {
Expand All @@ -208,7 +227,7 @@ if (process.env['NODE_ENV'] !== 'production') {
const nextEndpoints = JSON.stringify(Object.keys(data).sort())
if (prevEndpoints !== nextEndpoints) {
console.log()
logRoutes(data)
logRoutes(data, currentPort)
}
}
watch(file).on('change', () => {
Expand Down