Add tests + changeset

.changeset/young-spoons-drop.md

@@ -0,0 +1,17 @@
+---
+'xstate': patch
+---
+
+Meta data can now be specified for `invoke` configs in the `invoke.meta` property:
+
+```js
+const machine = createMachine({
+  // ...
+  invoke: {
+    src: (ctx, e) => findUser(ctx.userId),
+    meta: {
+      api: 'User Finder 2000'
+    }
+  }
+});
+```

packages/core/src/interpreter.ts

@@ -879,7 +879,8 @@ export class Interpreter<
           let source: Spawnable = isFunction(serviceCreator)
             ? serviceCreator(context, _event.data, {
                 data: resolvedData,
-                src: invokeSource
+                src: invokeSource,
+                meta: activity.meta
               })
             : serviceCreator;
 

packages/core/src/types.ts

@@ -302,6 +302,7 @@ export type InvokeCallback<
 export interface InvokeMeta {
   data: any;
   src: InvokeSourceDefinition;
+  meta?: MetaObject;
 }
 
 /**

packages/core/test/invoke.test.ts

@@ -2601,17 +2601,36 @@ describe('invoke', () => {
       .start();
   });
 
-  it('should show meta data', () => {
-    const machine = createMachine({
-      invoke: {
-        src: 'someSource',
-        meta: {
-          url: 'stately.ai'
+  describe('meta data', () => {
+    it('should show meta data', () => {
+      const machine = createMachine({
+        invoke: {
+          src: 'someSource',
+          meta: {
+            url: 'stately.ai'
+          }
         }
-      }
+      });
+
+      expect(machine.invoke[0].meta).toEqual({ url: 'stately.ai' });
     });
 
-    expect(machine.invoke[0].meta).toEqual({ url: 'stately.ai' });
+    it('meta data should be available in the invoke source function', () => {
+      expect.assertions(1);
+      const machine = createMachine({
+        invoke: {
+          src: (_ctx, _e, { meta }) => {
+            expect(meta).toEqual({ url: 'stately.ai' });
+            return Promise.resolve();
+          },
+          meta: {
+            url: 'stately.ai'
+          }
+        }
+      });
+
+      interpret(machine).start();
+    });
   });
 });