change call API signature (#43)

Author: Mahad-10

lib/session.ts

@@ -207,15 +207,11 @@ export class Session {
 
     async call(
         procedure: string,
-        callOptions: {
-            args?: any[] | null,
-            kwargs?: { [key: string]: any } | null,
-            options?: { [key: string]: any } | null
-        } = {}
+        args?: any[] | null,
+        kwargs?: { [key: string]: any } | null,
+        options?: { [key: string]: any } | null
     ): Promise<Result> {
-        const call = new Call(
-            new CallFields(this._nextID, procedure, callOptions.args, callOptions.kwargs, callOptions.options)
-        );
+        const call = new Call(new CallFields(this._nextID, procedure, args, kwargs, options));
 
         let promiseHandler: {
             resolve: (value: Result | PromiseLike<Result>) => void;

tests/interoptests/interop.test.ts

@@ -46,7 +46,7 @@ describe("WAMP Tests", function () {
                     const client = new Client({authenticator, serializer});
                     const session = await client.connect(url, REALM);
 
-                    const result = await session.call(PROCEDURE_ADD, {"args": [2, 2]});
+                    const result = await session.call(PROCEDURE_ADD, [2, 2]);
                     expect(result.args[0]).toBe(4);
 
                     await session.close();
@@ -82,7 +82,7 @@ describe("WAMP Tests", function () {
                     await callee.register("io.xconn.test", invHandler);
 
                     const caller = await client.connect(url, REALM);
-                    const result = await caller.call("io.xconn.test", {"args": args});
+                    const result = await caller.call("io.xconn.test", args);
                     expect(result.args).toEqual(args);
 
                     await callee.close();