[POC] Use resource name to have functions in separate stacks.

packages/backend-function/API.md

@@ -30,6 +30,7 @@ export type FunctionProps = {
     environment?: Record<string, string | BackendSecret>;
     runtime?: NodeVersion;
     schedule?: FunctionSchedule | FunctionSchedule[];
+    resourceGroupName?: string;
 };
 
 // @public (undocumented)

packages/backend-function/src/factory.ts

@@ -124,6 +124,9 @@ export type FunctionProps = {
    * schedule: "0 9 ? * 2 *" // every Monday at 9am
    */
   schedule?: FunctionSchedule | FunctionSchedule[];
+
+  // TODO Naming, but maybe it's not a bad name given this concept exists in plugin types already.
+  resourceGroupName?: string;
 };
 
 /**
@@ -169,6 +172,7 @@ class FunctionFactory implements ConstructFactory<AmplifyFunction> {
       environment: this.props.environment ?? {},
       runtime: this.resolveRuntime(),
       schedule: this.resolveSchedule(),
+      resourceGroupName: this.props.resourceGroupName ?? 'function',
     };
   };
 
@@ -279,12 +283,14 @@ class FunctionFactory implements ConstructFactory<AmplifyFunction> {
 type HydratedFunctionProps = Required<FunctionProps>;
 
 class FunctionGenerator implements ConstructContainerEntryGenerator {
-  readonly resourceGroupName = 'function';
+  readonly resourceGroupName: string;
 
   constructor(
     private readonly props: HydratedFunctionProps,
     private readonly outputStorageStrategy: BackendOutputStorageStrategy<FunctionOutput>
-  ) {}
+  ) {
+    this.resourceGroupName = props.resourceGroupName;
+  }
 
   generateContainerEntry = ({
     scope,

test-projects/function-stack-1/amplify/data/resource.ts

@@ -6,6 +6,7 @@ import {
 } from "@aws-amplify/backend";
 
 const testHandler = defineFunction({
+  resourceGroupName: 'function2'
 });
 
 const schema = a

test-projects/function-stack-1/amplify/functions/test-function/resource.ts

@@ -2,4 +2,6 @@ import {
   defineFunction,
 } from "@aws-amplify/backend";
 
-export const myApiFunction = defineFunction();
+export const myApiFunction = defineFunction({
+  resourceGroupName: 'function1'
+});

test-projects/function-stack-2/amplify/functions/test-function/resource.ts

@@ -1,7 +1,10 @@
 import { defineFunction } from '@aws-amplify/backend';
 
-export const testFunction = defineFunction();
+export const testFunction = defineFunction({
+  resourceGroupName: 'function1'
+});
 
 export const myApiFunction = defineFunction({
   name: 'api-function',
+  resourceGroupName: 'function2'
 });