fix: body was not rendering (#12)

Missed a test case and part of the migration doc where the request body
had to be updated to support the changes made to the upstream dep.

src/openAPI.test.ts

@@ -70,7 +70,7 @@ describe("buildOpenAPIDocument", () => {
       ),
     );
     const routers: Router[] = [router];
-    const schemaPaths: string[] = [];
+    const schemaPaths: string[] = ["../mocks/schemas"];
     const errors = { 401: "Unauthorized", 403: "Forbidden" };
 
     const document = buildOpenAPIDocument({ config, routers, schemaPaths, errors });
@@ -146,4 +146,29 @@ describe("buildOpenAPIDocument", () => {
 
     expect(responseSchema.$ref.includes("ResponseSchema")).to.be.true;
   });
+
+  it("should properly describe routes with request body", () => {
+    const config = { openapi: "3.0.0", info: { title: "Test API", version: "1.0.0" } };
+    const router = Router();
+    router.get(
+      "/test",
+      openAPIRoute(
+        {
+          tag: "Test",
+          summary: "Test route",
+          body: schemas.BodySchema,
+          response: schemas.ResponseSchema,
+        },
+        (req, res) => res.json({ success: true }),
+      ),
+    );
+    const routers: Router[] = [router];
+    const schemaPaths: string[] = ["../mocks/schemas"];
+    const errors = { 401: "Unauthorized", 403: "Forbidden" };
+
+    const document = buildOpenAPIDocument({ config, routers, schemaPaths, errors });
+    const requestBodySchema = document.paths["/test"].get.requestBody.content["application/json"].schema;
+
+    expect(requestBodySchema.$ref.includes("BodySchema")).to.be.true;
+  });
 });

src/openAPI.ts

@@ -167,7 +167,15 @@ export function buildOpenAPIDocument(args: {
       request: {
         params: asZodObject(referencingNamedSchemas(params)),
         query: asZodObject(referencingNamedSchemas(query)),
-        body: referencingNamedSchemas(body),
+        body: body
+          ? {
+              content: {
+                "application/json": {
+                  schema: referencingNamedSchemas(body),
+                },
+              },
+            }
+          : undefined,
       },
       responses: responses,
     };