Use the parsed request body rather than ctx.body, as ctx.body represents the response body.

Author: jmurzy

src/use/koa.ts

@@ -120,9 +120,9 @@ export function createHandler<Context extends OperationContext = undefined>(
         method: ctx.method,
         headers: ctx.headers,
         body: () => {
-          if (ctx.body) {
+          if (ctx.request.body) {
             // in case koa has a body parser
-            return ctx.body;
+            return ctx.request.body as any;
           }
           return new Promise<string>((resolve) => {
             let body = '';