ppx_let bindings for BuckleScript's Js.Promise.t
Like async/await syntax for Promises in JS but for OCaml.
Install:
npm install andreypopp/ppx_let andreypopp/ppx_let_promise
Add to bsconfig.json:
{
...
"ppx-flags": [
"ppx_let/ppx"
],
"bs-dependencies": [
"ppx_let_promise"
],
...
}
Use ppx_let with Js.Promise.t:
(* module with a name Let_syntax provides promise related utilities for syntax *)
module Let_syntax = Ppx_let_promise.Let_syntax
let hello () =
(* This line "waits" for promise to resolve and binds to its result value *)
let%bind message = Js.Promise.resolve "Hello!" in
print_endline message;
Js.Promise.resolve ();;
hello ();