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AWS Lambda API Gateway Support for Macro and MacroExpress (and all things built on-top)
.package(url: "https://github.com/Macro-swift/MacroLambda.git", from: "0.4.0")


AWS Lambda API Gateway Support for Macro and MacroExpress (and all things built on-top).

It allows deployment of arbitrary Macro applications as AWS Lambda functions, including MacroApp endpoints.

Blog article: Deploying Swift on AWS Lambda.

The module is split into the MacroLambda module, which provides the Express runner (Lambda.run(express-app)) and MacroLambdaCore which only links against http and provides the lambda.createServer (the peer to http.createServer).

There is a tutorial on getting started with those things: Create your first HTTP endpoint with Swift on AWS Lambda.

Note: The Swift Lambda Runtime requires Swift 5.2.


import MacroLambda

let app = Express()


app.post("/hello") { req, res, next in
  console.log("Client posted:", req.body.text ?? "-")
  res.send("Client body sent: \(req.body.text ?? "~nothing~")")

app.get { req, res, next in
  res.send("Welcome to Macro!")



Using swift lambda (brew install SPMDestinations/tap/swift-lambda):

$ swift lambda deploy -d 5.2

Tutorial available: Deploying Swift on AWS Lambda.

Environment Variables

  • macro.core.numthreads
  • macro.core.iothreads
  • macro.core.retain.debug
  • macro.concat.maxsize
  • macro.streams.debug.rc



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There is a #microexpress channel on the Noze.io Slack. Feel free to join!


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Last commit: 5 weeks ago

Swiftpack is being maintained by Petr Pavlik | @ptrpavlik | @swiftpackco