[wip] factoring vdk out into several packages

sidekick/scratch/examples_old/examples_src_ts/parasite/net.ts

@@ -0,0 +1,85 @@
+//-------------------------------------------------------------------
+// Common networking functions
+//
+// Mozilla fetch docs : https://developer.mozilla.org/en-US/docs/Web/API/fetch
+//-------------------------------------------------------------------
+
+
+
+/* pf = pretty format
+*/
+function pf(x : any) : string
+{
+    return JSON.stringify(x, undefined, 4);
+}
+
+
+
+//-------------------------------------------------------------------
+// FUNCTIONS
+//-------------------------------------------------------------------
+
+// GET request with return type of JSON
+async function
+get_json(url: string)
+    : Promise<any>
+{
+    let response = await fetch(url);
+    let ret      = await response.json();
+    return ret;
+}
+
+
+
+// GET request with return type of JSON
+async function
+get_json_response(url: string)
+    : Promise<Response>
+{
+    let response = await fetch(url);
+    //let ret      = await response.json();
+    return response;
+}
+
+
+
+// POST request with content type of json and return type of JSON
+async function
+post_json(url      : string,
+          body_obj : any)
+    : Promise<any>
+{
+    let body_str = pf(body_obj);
+    let req_opts = {method  : 'POST',
+                    body    : body_str,
+                    headers : {"Content-Type": "application/json"}};
+    let response = await fetch(url, req_opts);
+    let ret      = await response.json();
+    return ret;
+}
+
+
+async function
+post_json_response(url      : string,
+                   body_obj : any)
+    : Promise<Response>
+{
+    let body_str = pf(body_obj);
+    let req_opts = {method  : 'POST',
+                    body    : body_str,
+                    headers : {"Content-Type": "application/json"}};
+    let response = await fetch(url, req_opts);
+    return response;
+}
+
+
+
+//-------------------------------------------------------------------
+// EXPORTS
+//-------------------------------------------------------------------
+export {
+    get_json,
+    get_json_response,
+    post_json,
+    post_json_response
+}