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82 lines
1.9 KiB
Rust
82 lines
1.9 KiB
Rust
#[macro_use] extern crate rocket;
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#[cfg(test)] mod tests;
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#[derive(FromFormField)]
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enum Lang {
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#[field(value = "en")]
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English,
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#[field(value = "ru")]
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#[field(value = "ру")]
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Russian
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}
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#[derive(FromForm)]
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struct Options<'r> {
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emoji: bool,
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name: Option<&'r str>,
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}
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// Try visiting:
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// http://127.0.0.1:8000/hello/world
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#[get("/world")]
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fn world() -> &'static str {
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"Hello, world!"
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}
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// Try visiting:
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// http://127.0.0.1:8000/hello/мир
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#[get("/мир")]
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fn mir() -> &'static str {
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"Привет, мир!"
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}
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// Try visiting:
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// http://127.0.0.1:8000/wave/Rocketeer/100
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#[get("/<name>/<age>")]
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fn wave(name: &str, age: u8) -> String {
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format!("👋 Hello, {} year old named {}!", age, name)
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}
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// Note: without the `..` in `opt..`, we'd need to pass `opt.emoji`, `opt.name`.
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//
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// Try visiting:
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// http://127.0.0.1:8000/?emoji
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// http://127.0.0.1:8000/?name=Rocketeer
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// http://127.0.0.1:8000/?lang=ру
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// http://127.0.0.1:8000/?lang=ру&emoji
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// http://127.0.0.1:8000/?emoji&lang=en
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// http://127.0.0.1:8000/?name=Rocketeer&lang=en
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// http://127.0.0.1:8000/?emoji&name=Rocketeer
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// http://127.0.0.1:8000/?name=Rocketeer&lang=en&emoji
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// http://127.0.0.1:8000/?lang=ru&emoji&name=Rocketeer
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#[get("/?<lang>&<opt..>")]
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fn hello(lang: Option<Lang>, opt: Options<'_>) -> String {
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let mut greeting = String::new();
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if opt.emoji {
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greeting.push_str("👋 ");
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}
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match lang {
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Some(Lang::Russian) => greeting.push_str("Привет"),
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Some(Lang::English) => greeting.push_str("Hello"),
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None => greeting.push_str("Hi"),
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}
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if let Some(name) = opt.name {
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greeting.push_str(", ");
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greeting.push_str(name);
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}
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greeting.push('!');
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greeting
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}
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#[launch]
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fn rocket() -> _ {
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rocket::build()
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.mount("/", routes![hello])
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.mount("/hello", routes![world, mir])
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.mount("/wave", routes![wave])
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}
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