Added proxyIO endpoint

Author: Vlad Balin

endpoints/proxy/README.md

@@ -0,0 +1,15 @@
+# Proxy Endpoint
+
+Create IO endpoint from the Record class. This endpoint is designed for use on the server side data layer managed by Type-R.
+
+Assuming that you have Type-R records with endpoints working with the database, you can create an endpoint which will use
+Record subclass as a transport.
+
+    import { proxyIO } from 'type-r/endpoint/proxy'
+    
+    ...
+
+    const usersIO = proxyIO( User );
+
+This endpoint can be connected to the RESTful endpoint API on the server side which will serve JSON to the restfulIO endpoint on the client.
+An advantage of this approach is that JSON schema will be transparently validated on the server side by the Type-R.

endpoints/proxy/dist/index.js

@@ -0,0 +1,20 @@
+import { IOEndpoint, Record } from 'type-r';
+export declare function proxyIO(record: typeof Record): ProxyEndpoint;
+export declare class ProxyEndpoint implements IOEndpoint {
+    Record: typeof Record;
+    readonly endpoint: IOEndpoint;
+    constructor(record: typeof Record);
+    subscribe(events: any, target: any): Promise<any>;
+    unsubscribe(events: any, target: any): void;
+    list(options: any): Promise<Object[]>;
+    update(id: any, json: any, options: any): Promise<{
+        _cas: any;
+    }>;
+    create(json: any, options: any): Promise<{
+        id: any;
+        _cas: any;
+        _type: any;
+    }>;
+    read(id: any, options: object): Promise<Object>;
+    destroy(id: string, options: object): Promise<{}>;
+}