Config

For custom advanced behavior of Aleph.js, add an aleph.config.ts file in the root of your project directory.

Framework

Aleph.js is a fulltack framework in Deno. Currently we only support React as the frontend renderer.

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  framework: 'react'
}

Base Path

basePath allows you to set a path prefix for the application.

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  basePath: '/docs'
}

Build

build specifies the options for Build command.

• target: string specifies the build target in production mode (default is 'es2015', available targets: 'es2015' - 'es2021', and 'esnext').
• browsers: Record<string, number> adds the target browsers for esbuild (supported browsers: 'chrome' | 'edge' | 'firefox' | 'ios' | 'safari').
• outputDir: string specifies the output directory for build command (default is '/dist').

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  build: {
    target: 'es2015',
    browsers: { chrome: 90, safari: 12 },
    outputDir: '/dist',
  }
}

Configuring CSS

css specifies the css processing options.

• cache: boolean caches remote css to local if it is true.
• postcss: {plugins: PostCSSPlugin[]} specifies the postcss plugins. The PostCSSPlugin can be a name string that is imported from esm.sh.
• modules: CSSModulesOptions specifies CSS modules behavior, the options are passed on to postcss-modules.

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  css: {
    cache: true,
    postcss: { plugins: [ 'autoprefixer' ] },
    modules: {
      scopeBehaviour: 'global', // can be 'global' or 'local'
    }
  }
}

SSR Options

ssr enables SSR feature for your project, default is enable for all pages.

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  ssr: true
}

Mix SSR and SPA:

export default <Config>{
  ssr: {
    include: [/.html$/],
    exclude: [/^\/admin\//],
  }
}

Pure SPA mode:

export default <Config>{
  ssr: false
}

I18N

i18n enables multiple locales for the routing.

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  i18n: {
    defaultLocale: 'en',
    locales: ['en', 'zh-CN'],
  }
}

Check I18n routing documentation for I18N support.

Server Options

server specifies the options for Aleph Server.

• middlewares: APIMiddleware[] a list of Middleware for API requests.
• headers: Record<string, string> appends custom headers for server requests.
• rewrites: Record<string, string> specifies the server rewrite map.
• compress: boolean enbles compression(gzip/brotli) for static files and SSR content (default is true for production mode).

import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  server: {
    middlewares: [
      ({ response, data }, next) => {
        response.headers.set('server', 'Aleph.js')
        data.set('foo', 'bar')
        next()
      }
    ],
    headers: {
      'Server': 'Custom'
    },
    rewrites: {
      '/p/[id]': '/blog/[id]'
    },
    compress: true
  }
}

Plugins

plugins provides some plugins to extend Aleph runtime.

import markdown from 'https://deno.land/x/aleph/plugins/markdown.ts'
import type { Config } from 'https://deno.land/x/aleph/types.d.ts'

export default <Config>{
  plugins: [
    markdown()
  ]
}

To find Aleph plugins, check our Official Plugins and Community Plugins.