export const RUNTIME = Runtime.NODEJS_16_X;
    this.setDefaultFunctionProps({
      vpc,
      runtime: RUNTIME,
})

It would be nice if this worked - I want to reuse the runtime instance for the buildImage property but

runtime

wants just a string now 😞

runtime

is looking for a

Runtime

just not the same one you're using 🙂 the SST

Runtime

is a type only. I would think something like this would be safe enough though?

import type { Runtime as SST_RUNTIME } from '@serverless-stack/resources'
import { Runtime } from 'aws-cdk-lib/aws-lambda'

export default function (app: App) {
  const RUNTIME = Runtime.NODEJS_16_X

  app.setDefaultFunctionProps({
    runtime: RUNTIME.toString() as SST_RUNTIME,
  })
}

because that

Runtime

is just a discriminated string type and I need stuff like the

bundlingImage

that comes with the CDK

Runtime

So not sure I am following. The

runtime

prop for

setDefaultFunctionProps

takes a SST Runtime (various strings), so you would set that using

toString()

but then you would still have

RUNTIME

to pass around and do whatever with to get access to the other things you need? Maybe I am not following where you want to use

RUNTIME

? Do you need it as a variable in your function? or just need it in the stack where the function is? Also for the record I think there is a documentation/implementation bug here. @thdxr I am pinging you as I am not sure who else to raise this up to. According to the docs

runtime

should be able to take a

string

or a

cdk.lambda.Runtime

https://docs.serverless-stack.com/constructs/v0/Function#runtime However the ts types have it like this

/**
     * The runtime environment. Only runtimes of the Node.js, Python, Go, and .NET (C# and F#) family are supported.
     *
     * @default "nodejs14.x"
     *
     * @example
     * ```js
     * new Function(stack, "Function", {
     *   runtime: "nodejs16.x",
     * })
     *

*/ runtime?: Runtime;``` Where

Runtime

there is

export declare type Runtime = "nodejs" | "nodejs4.3" | "nodejs6.10" | "nodejs8.10" | "nodejs10.x" | "nodejs12.x" | "nodejs14.x" | "nodejs16.x" | "python2.7" | "python3.6" | "python3.7" | "python3.8" | "python3.9" | "dotnetcore1.0" | "dotnetcore2.0" | "dotnetcore2.1" | "dotnetcore3.1" | "go1.x";

Maybe it should be this ? I am not sure if this code is implemented though

runtime?: Runtime | lambda.Runtime;

lambda.Runtime is more than just a string.

yeah thats why i imported them both up here

import type { Runtime as SST_RUNTIME } from '@serverless-stack/resources'
import { Runtime } from 'aws-cdk-lib/aws-lambda'

SST_RUNTIME

is for SST then

Runtime

would be for you to do whatever you need with.

Doing

RUNTIME.name

should work since it is the actual string value, might have to do

RUNTIME.name as sst.Runtime

or however sst exports the type.

Yup

name

or

toString()

should get you there. you will need to cast it though as

runtime

is not typed as a string in SST. unless you're not using TS at all, then i guess none of this matters haha. So like i had in the original example

runtime: RUNTIME.toString() as SST_RUNTIME,

yeah, i can probably do that, seems wack IMO?