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basic example with tiny_httpd

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This commit is contained in:
Swrup 2025-02-06 01:28:39 +01:00
parent 619be59031
commit a67ff6acab
6 changed files with 72 additions and 28 deletions
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6
dune-project
View File

@ -30,9 +30,11 @@
(tags
(leaflet javascript bindings interactive map openstreetmap))
(depends
(ocaml
(>= 4.08))
brr
js_of_ocaml
dune-site
(ocaml
(>= 4.08)))
(tiny_httpd :with-test)
)
(sites (share css) (share images)))

14
example/css_path.ml
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@ -1,14 +0,0 @@
(* get leaflet.css path from dune-site *)
let dune_site = List.filter Sys.file_exists Mysites.Sites.css
let lookup_file filename =
List.find_map
(fun dir ->
let filename' = Filename.concat dir filename in
if Sys.file_exists filename' then Some filename' else None )
dune_site
let leaflet_css = lookup_file "leaflet.css" |> Option.get
let () = Format.printf "%s@." leaflet_css

29
example/dune
View File

@ -1,14 +1,25 @@
(executable
(name css_path)
(modules css_path mysites)
(libraries dune-site))
(generate_sites_module
(module mysites)
(sites leaflet))
(executable
(name script)
(modules script)
(libraries brr leaflet)
(modes js))
(executable
(name server)
(modules content server css_path mysites)
(libraries dune-site tiny_httpd))
(generate_sites_module
(module mysites)
(sites leaflet))
(rule
(with-stdout-to
content.ml
(progn
(echo "let index_html = {|")
(cat index.html)
(echo "|}")
(echo "let script_js = {|")
(cat script.bc.js)
(echo "|}"))))

4
example/map.html → example/index.html
View File

@ -4,12 +4,12 @@
<!-- dune-site should have installed leaflet.css
you can use css_path.ml to get it's path -->
<link href="leaflet.css" rel="stylesheet">
<script type="text/javascript" src="script.bc.js" defer="defer"></script>
<script type="text/javascript" src="script.js" defer="defer"></script>
</head>
<body>
<main>
<!-- don't forget to set a size! -->
<div id="map" style="height: 100%"></div>
<div id="map" style="height: 700px; width: 700px"></div>
</main>
</body>
</html>

44
example/server.ml Normal file
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@ -0,0 +1,44 @@
let read_file file = In_channel.with_open_bin file In_channel.input_all
let leaflet_css =
(* get leaflet.css path from dune-site *)
let dune_site = List.filter Sys.file_exists Mysites.Sites.css in
let lookup_file filename =
List.find_map
(fun dir ->
let filename' = Filename.concat dir filename in
if Sys.file_exists filename' then Some filename' else None )
dune_site
in
let path =
match lookup_file "leaflet.css" with
| None ->
Printf.eprintf
"File 'leaflet.css' not found.\n\
It should have been installed with dune-site.\n\
Did you run `dune build @install`?\n";
exit 1
| Some o -> o
in
read_file path
let script_js = Content.script_js
let index_html = Content.index_html
module S = Tiny_httpd
let () =
let server = S.create () in
S.add_route_handler server
S.Route.(exact "leaflet.css" @/ return)
(fun _req -> S.Response.make_string (Ok leaflet_css));
S.add_route_handler server
S.Route.(exact "script.js" @/ return)
(fun _req -> S.Response.make_string (Ok script_js));
S.add_route_handler server
S.Route.(return)
(fun _req -> S.Response.make_string (Ok index_html));
Printf.printf "listening on http://%s:%d/\n%!" (S.addr server) (S.port server);
match S.run server with Ok () -> () | Error e -> raise e

3
leaflet.opam
View File

@ -16,10 +16,11 @@ doc: "TODO/leaflet"
bug-reports: "https://git.zapashcanon.fr/swrup/leaflet/issues"
depends: [
"dune" {>= "2.9"}
"ocaml" {>= "4.08"}
"brr"
"js_of_ocaml"
"dune-site"
"ocaml" {>= "4.08"}
"tiny_httpd" {with-test}
"odoc" {with-doc}
]
build: [