Vercel

A Swift runtime and SDK for Vercel Serverless Functions.

Usage

import Vercel

@main
struct App: RequestHandler {

    func onRequest(_ req: Request, context: Context) async throws -> Response {
        let greeting = EdgeConfig.default["greeting"]
        return .init(statusCode: .ok, body: "Hello, \(greeting)")
    }
}

Note: You can also add a top level public folder that will be deployed statically to Vercel’s CDN.

Deploy

Locally

To deploy your project locally you need to install Docker and the Vercel CLI. Once installed you can you must link your Vercel project:

vercel link

After linking your project you can deploy it via Swift package manager:

swift package --disable-sandbox vercel

GitHub Actions

Use the following GitHub actions workflow to continuiously deploy your project to Vercel:

name: Vercel

on:
  push:
    branches:
      - main

env:
  VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
  VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
  VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}

jobs:
  deploy:
    runs-on: ubuntu-latest
    container: swift:5.7-amazonlinux2

    steps:
      - uses: actions/checkout@v3

      - uses: actions/cache@v3
        with:
          path: .build
          key: ${{ runner.os }}-spm-${{ hashFiles('Package.resolved') }}
          restore-keys: |
            ${{ runner.os }}-spm-

      - uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Install
        run: npm install -g vercel@latest

      - name: Deploy
        run: swift package --disable-sandbox vercel --prod

GitHub

View Github