fix RpcClient payload for tagged requests (#5049)

tim-smart · web-flow · commit ddfd1e43db60 · 2025-06-17T17:08:42.000+12:00
diff --git a/.changeset/clever-points-cough.md b/.changeset/clever-points-cough.md
@@ -0,0 +1,5 @@
+---
+"@effect/rpc": patch
+---
+
+fix RpcClient payload for tagged requests
diff --git a/packages/rpc/src/Rpc.ts b/packages/rpc/src/Rpc.ts
@@ -287,7 +287,9 @@ export type PayloadConstructor<R> = R extends Rpc<
   infer _Success,
   infer _Error,
   infer _Middleware
-> ? _Payload extends { readonly make: (params: infer P, ...rest: infer _Rest) => infer _ } ? P
+> ?
+  _Payload extends { readonly fields: Schema.Struct.Fields } ?
+    Schema.Simplify<Schema.Struct.Constructor<_Payload["fields"]>>
   : _Payload["Type"]
   : never
 

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"@effect/rpc": patch
 +---
++
 +fix RpcClient payload for tagged requests