fix(api): issue 12756 by exporting CONNECTION_STATE_CHANGE as a value

packages/api/__tests__/API.test.ts

@@ -1,6 +1,6 @@
 import { ResourcesConfig } from 'aws-amplify';
 import { InternalGraphQLAPIClass } from '@aws-amplify/api-graphql/internals';
-import { generateClient } from '@aws-amplify/api';
+import { generateClient, CONNECTION_STATE_CHANGE } from '@aws-amplify/api';
 import { AmplifyClassV6 } from '@aws-amplify/core';
 // import { runWithAmplifyServerContext } from 'aws-amplify/internals/adapter-core';
 
@@ -38,6 +38,9 @@ describe('API generateClient', () => {
 		);
 	});
 
+	test('CONNECTION_STATE_CHANGE importable as a value, not a type', async () => {
+		expect(CONNECTION_STATE_CHANGE).toBe('ConnectionStateChange');
+	})
 	// test('server-side client.graphql', async () => {
 	// 	const config: ResourcesConfig = {
 	// 		API: {

packages/api/src/index.ts

@@ -9,9 +9,10 @@ export { GraphQLAuthError, ConnectionState } from '@aws-amplify/api-graphql';
 export type {
 	GraphQLResult,
 	GraphQLReturnType,
-	CONNECTION_STATE_CHANGE,
 } from '@aws-amplify/api-graphql';
 
+export { CONNECTION_STATE_CHANGE } from '@aws-amplify/api-graphql';
+
 import type { V6Client } from '@aws-amplify/api-graphql';
 
 // explicitly defaulting to `never` here resolves

packages/aws-amplify/__tests__/exports.test.ts

@@ -51,6 +51,7 @@ describe('aws-amplify Exports', () => {
 		it('should only export expected symbols from the top level', () => {
 			expect(Object.keys(apiTopLevelExports).sort()).toEqual(
 				[
+					'CONNECTION_STATE_CHANGE',
 					'ConnectionState',
 					'GraphQLAuthError',
 					'del',