Add a method to fetch users from the client

app/Cargo.toml

@@ -8,6 +8,9 @@ edition = "2018"
 yew = "0.17.4"
 wasm-bindgen = "0.2.73"
 lldap_model = { path = "../model" }
+anyhow = "1.0.40"
+web-sys = { version = "0.3", features = [ "console" ] }
+serde_json = "1"
 
 [lib]
 crate-type = ["cdylib"]

app/src/api.rs

@@ -0,0 +1,29 @@
+use anyhow::{anyhow, Error};
+use lldap_model::*;
+
+use yew::callback::Callback;
+use yew::format::Json;
+use yew::services::fetch::{FetchService, FetchTask, Request, Response};
+
+#[derive(Default)]
+pub struct HostService {}
+
+impl HostService {
+        pub fn list_users(&mut self, request: ListUsersRequest, callback: Callback<Result<Vec<User>, Error>>) -> Result<FetchTask, Error> {
+        let url = format!("/api/users");
+        let handler = move |response: Response<Json<Result<Vec<User>, Error>>>| {
+            let (meta, Json(data)) = response.into_parts();
+            if meta.status.is_success() {
+                callback.emit(data)
+            } else {
+                callback.emit(Err(anyhow!(
+                    "{}: error getting users from /api/users",
+                    meta.status
+                )))
+            }
+        };
+        let request = Request::post(url.as_str()).header("Content-Type", "application/json").body(Json(&request)).unwrap();
+        FetchService::fetch(request, handler.into())
+    }
+}
+

app/src/app.rs

@@ -1,23 +1,61 @@
+use crate::api::HostService;
+use anyhow::Error;
 use lldap_model::*;
+use yew::format::Json;
 use yew::prelude::*;
+use yew::services::{fetch::FetchTask, ConsoleService};
 
-pub struct App {}
-
-pub enum Msg {
-    BindRequest(BindRequest),
-    ListUsersRequest(ListUsersRequest),
+pub struct App {
+    link: ComponentLink<Self>,
+    ipservice: HostService,
+    task: Option<FetchTask>,
+    users: Option<Vec<User>>,
 }
 
+pub enum Msg {
+    //BindRequest(BindRequest),
+    ListUsersRequest(ListUsersRequest),
+    ListUsersResponse(Result<Vec<User>, Error>),
+}
 
 impl Component for App {
     type Message = Msg;
     type Properties = ();
 
-    fn create(_: Self::Properties, _: ComponentLink<Self>) -> Self {
-        App {}
+    fn create(_: Self::Properties, link: ComponentLink<Self>) -> Self {
+        App {
+            link: link.clone(),
+            ipservice: HostService::default(),
+            task: None,
+            users: None,
+        }
     }
 
-    fn update(&mut self, _msg: Self::Message) -> ShouldRender {
+    fn update(&mut self, msg: Self::Message) -> ShouldRender {
+        match msg {
+            Msg::ListUsersRequest(req) => {
+                match self
+                    .ipservice
+                    .list_users(req, self.link.callback(Msg::ListUsersResponse))
+                {
+                    Ok(task) => self.task = Some(task),
+                    Err(e) => {
+                        self.task = None;
+                        ConsoleService::log(
+                            format!("Error trying to fetch users: {:?}", e).as_str(),
+                        )
+                    }
+                }
+            }
+            Msg::ListUsersResponse(Ok(users)) => {
+                self.users = Some(users);
+                ConsoleService::log(format!("Response: {:?}", Json(&self.users)).as_str());
+            }
+            Msg::ListUsersResponse(Err(e)) => {
+                self.task = None;
+                ConsoleService::log(format!("Error listing users: {:?}", e).as_str())
+            }
+        }
         true
     }
 
@@ -27,7 +65,11 @@ impl Component for App {
 
     fn view(&self) -> Html {
         html! {
-            <p>{ "Hello world!" }</p>
+            <div>
+                <h1>{ "LLDAP" }</h1>
+                <button onclick=self.link.callback(|_| Msg::ListUsersRequest(ListUsersRequest{filters: None}))>{ "Fetch users" }</button>
+                <p>{ format!("Users: {:?}", &self.users) }</p>
+            </div>
         }
     }
 }

app/src/lib.rs

@@ -1,6 +1,8 @@
+#![recursion_limit = "256"]
+mod api;
 mod app;
 
-use wasm_bindgen::prelude::*;
+use wasm_bindgen::prelude::{wasm_bindgen, JsValue};
 
 #[wasm_bindgen]
 pub fn run_app() -> Result<(), JsValue> {