1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
use http-nu/router *
use http-nu/datastar *
use http-nu/html *
{|req|
dispatch $req [
# Index page
(route {method: GET path: "/"} {|req ctx|
(HTML
(HEAD
(META {charset: "UTF-8"})
(TITLE "Datastar SDK Demo")
(SCRIPT {type: "module" src: $DATASTAR_JS_PATH}))
(BODY {"data-signals": "{count: 0}"}
(H1 "Datastar SDK Demo")
(DIV {style: {display: flex gap: 2em}}
(DIV
(H3 "to datastar-patch-signals")
(P "Count: " (SPAN {"data-text": "$count"} "0"))
(BUTTON {"data-on:click": "@post('./increment')"} "Increment"))
(DIV
(H3 "to datastar-execute-script")
(BUTTON {"data-on:click": "@post('./hello')"} "Say Hello"))
(DIV
(H3 "to datastar-patch-elements")
(DIV {id: "time"} "--:--:--.---")
(BUTTON {"data-on:click": "@post('./time')"} "Get Time")))))
})
# Increment counter signal
(route {method: POST path: "/increment"} {|req ctx|
let signals = from datastar-signals $req
let count = ($signals.count? | default 0) + 1
{count: $count} | to datastar-patch-signals | to sse
})
# Execute script on client
(route {method: POST path: "/hello"} {|req ctx|
"alert('Hello from the server!')" | to datastar-execute-script | to sse
})
# Update time div
(route {method: POST path: "/time"} {|req ctx|
let time = date now | format date "%H:%M:%S%.3f"
DIV {id: "time"} $time | to datastar-patch-elements | to sse
})
]
}