fix AS, add console doc

backend-assemblyscript/step3-finished-app/assembly/model.ts

@@ -10,7 +10,7 @@ export function addMessage(message: string, username: string): void {
     query(request);
 }
 
-export function getMessages(username: string | null, offset: u32, count: u32): string {
+export function getMessages(username: string | null, offset: i64, count: i64): string {
     let limitClause = ` LIMIT ` + count.toString() + ` OFFSET ` + offset.toString() + ` `;
     if (username) {
         let whereClause = ` WHERE username = "` + username + `" `;

backend-assemblyscript/step3-finished-app/assembly/request.ts

@@ -26,10 +26,10 @@ export class PostRequest extends Request {
 
 export class FetchRequest extends Request {
     public readonly username: string | null;
-    public readonly offset: u32;
-    public readonly count: u32;
+    public readonly offset: i64;
+    public readonly count: i64;
 
-    constructor(username: string | null, offset: u32, count: u32) {
+    constructor(username: string | null, offset: i64, count: i64) {
         super();
         this.action = Action.Fetch;
         this.username = username;
@@ -78,13 +78,18 @@ class RequestJSONEventsHandler extends JSONHandler {
     public message: string;
     public username: string;
     public filter_handle: string | null;
-    public offset: u32;
-    public count: u32;
+    public offset: i64 = 0;
+    public count: i64 = 100;
+
+    setInteger(name: string, value: i64): void {
+        if (name == "offset") {
+            this.offset = value;
+        } else if (name == "count") {
+            this.count = value;
+        }
+    }
 
     setString(name: string, value: string): void {
-        this.offset = 0;
-        this.count = 100;
-
         if (name == "action") {
             this.action = value;
         } else if (name == "message") {
@@ -92,11 +97,6 @@ class RequestJSONEventsHandler extends JSONHandler {
         } else if (name == "username") {
             this.username = value;
             this.filter_handle = value;
-        } else if (name == "offset") {
-            this.offset = U32.parseInt(value);
-        } else if (name == "count") {
-            this.count = U32.parseInt(value);
         }
-        // json scheme is not strict, so we won't throw an error on excess fields
     }
 }

frontend/src/components/App.js

@@ -9,6 +9,28 @@ import ConnectionToggle from "./ConnectionToggle";
 
 class App extends Component {
 
+    componentDidMount() {
+        console.log(`
+
+Hello, Fluencer!
+Thank you for trying Fluence out!
+You can find docs at https://fluence.dev
+Check out http://dash.fluence.network to deploy your own SQL DB instance
+Check out https://github.com/fluencelabs/tutorials for more Fluence examples
+If you have any questions, feel free to join our Discord https://fluence.chat :)
+
+You can send requests to Fluence network straight from console:
+
+// send the message and don't wait for a response
+fluenceSession.requestAsync('{"action": "Post", "message": "Hello, Fluence!", "username": "fluencer"}')
+
+// get the last message, decode response as a string and print it in the console
+fluenceSession.request('{"action": "Fetch", "offset": 0, "limit": 1}').then((r) => r.asString()).then(console.log)                   
+
+  
+`)
+    }
+
     render() {
         return (
             <Router>