Add changeset

statelyai · Jun 23, 2021 · 5f790ba · 5f790ba
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diff --git a/.changeset/itchy-cameras-hear.md b/.changeset/itchy-cameras-hear.md
@@ -0,0 +1,12 @@
+---
+'xstate': patch
+---
+
+The typing for `InvokeCallback` have been improved for better event constraints when using the `sendBack` parameter of invoked callbacks:
+
+```ts
+invoke: () => (sendBack, receive) => {
+  // Will now be constrained to events that the parent machine can receive
+  sendBack({ type: 'SOME_EVENT' });
+};
+```
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
@@ -258,7 +258,7 @@ export interface InvokeMeta {
  */
 export type InvokeCreator<
   TContext,
-  TEvent extends EventObject = AnyEventObject,
+  TEvent extends EventObject,
   TFinalContext = any
 > = (
   context: TContext,