Use schema object when in is body

fix #489 (comment)

Author: yamacent

src/transform/parameters.ts

@@ -49,7 +49,13 @@ export function transformParametersArray(
       const required = paramObj.required ? `` : `?`;
       let type = ``;
       if (version === 2) {
-        type = paramObj.type ? transformSchemaObj(paramObj) : "unknown";
+        if (paramObj.in === "body" && paramObj.schema) {
+          type = transformSchemaObj(paramObj.schema);
+        } else if (paramObj.type) {
+          type = transformSchemaObj(paramObj);
+        } else {
+          type = "unknown";
+        }
       } else if (version === 3) {
         type = paramObj.schema ? transformSchemaObj(paramObj.schema) : "unknown";
       }

tests/parameters.test.ts

@@ -17,6 +17,7 @@ describe.only("transformParametersArray()", () => {
               type: "array",
             },
             { in: "path", name: "three_d_secure", required: true, type: "string" },
+            { in: "body", name: "payload", schema: { type: "string" } },
           ],
           2
         ).trim()
@@ -27,6 +28,9 @@ describe.only("transformParametersArray()", () => {
   }
   path: {
     "three_d_secure": string;
+  }
+  body: {
+    "payload"?: string;
   }`
       );
     });