---
layout: doc
title: Generate code from your API spec with esbuild
description: Add the kubb/esbuild plugin to build.ts so every esbuild build generates code from your API spec with the plugins in your kubb.config.ts.
outline: [2, 3]
order: 11
navigation:
  title: esbuild
  icon: i-simple-icons-esbuild
---

> Index of every page on this site: [llms.txt](https://kubb.dev/llms.txt)

# Generate code from your API spec with esbuild

::steps{level="2"}

## Install Kubb and your output plugins

Follow the [installation guide](/docs/5.x/how-to/installation) to add Kubb and the plugins your output needs. The integration ships with `kubb` as `unplugin-kubb`.

## Configure the integration

Import your shared `kubb.config.ts` and pass it to the integration. The `config` must be a single object, not the array or function forms `defineConfig` accepts. Run the build command of your tool to generate the files.


```typescript [build.ts]
import { build } from 'esbuild'
import kubb from 'kubb/esbuild'
import config from './kubb.config'

await build({
  entryPoints: ['src/index.ts'],
  bundle: true,
  outfile: 'dist/bundle.js',
  plugins: [kubb({ config })],
})
```

> [!NOTE]
> Bundler integrations apply fewer defaults than the CLI: no Markdown parser, no reporters, and no `output.postGenerate` commands. Use the CLI when you need them. See [Defaults](/docs/5.x/reference/configuration#defaults).

::

## Sitemap

See the full [sitemap](https://kubb.dev/sitemap.md) for all pages.