when i build my application locally it runs perfect without any error but when build happens on railway it crashed and the reason is Unexpected token ";" it seems some kind of injection happens to production code

note => i'm using esbuild to build expressjs

here is my configurations of esuild

   import esbuild from 'esbuild'
   import * as packages from './package.json' with { type: 'json' }
   const listPackages = [...Object.keys(packages.default.dependencies)]
  esbuild
   .build({
    entryPoints: ['./src/index.ts'],
    outfile: './build/index.cjs',
    bundle: true,
    platform: 'node',
    target: 'node22', // Adjust based on your Node.js version
    sourcemap: true, // Optional: For easier debugging
    minify: true, // Optional: Set to true for production
    external: ['mock-aws-s3', 'aws-sdk', 'nock', ...listPackages], // Exclude these packages
    packages: 'external',
  })
  .then(() => {
    console.log('Build succeeded')
  })
  .catch(() => {
    process.exit(1)
  })

And there are my npm scripts

"build": "rimraf build && node esbuild.config.mjs",
"start": "cross-env NODE_ENV=production node  build/index.cjs",
"postbuild": "npx prisma generate"

when i build my application locally it runs perfect without any error but when build happens on railway it crashed and the reason is Unexpected token ";" it seems some kind of injection happens to production code

note => i'm using esbuild to build expressjs

here is my configurations of esuild

   import esbuild from 'esbuild'
   import * as packages from './package.json' with { type: 'json' }
   const listPackages = [...Object.keys(packages.default.dependencies)]
  esbuild
   .build({
    entryPoints: ['./src/index.ts'],
    outfile: './build/index.cjs',
    bundle: true,
    platform: 'node',
    target: 'node22', // Adjust based on your Node.js version
    sourcemap: true, // Optional: For easier debugging
    minify: true, // Optional: Set to true for production
    external: ['mock-aws-s3', 'aws-sdk', 'nock', ...listPackages], // Exclude these packages
    packages: 'external',
  })
  .then(() => {
    console.log('Build succeeded')
  })
  .catch(() => {
    process.exit(1)
  })

And there are my npm scripts

"build": "rimraf build && node esbuild.config.mjs",
"start": "cross-env NODE_ENV=production node  build/index.cjs",
"postbuild": "npx prisma generate"

• node.js
• express
• deployment
• railway

1 Answer 1

the problem was with mime package so I downgraded the package to 3.0.0 and the application is now working well