Added actix-web example (#38)

Signed-off-by: Francesco Guardiani <francescoguard@gmail.com>

.gitignore

@@ -1,4 +1,4 @@
-/target
+**/target
 
 .idea
-Cargo.lock
+**/Cargo.lock

Cargo.toml

@@ -35,4 +35,7 @@ members = [
   ".",
   "cloudevents-sdk-actix-web",
   "cloudevents-sdk-reqwest"
+]
+exclude = [
+  "example-projects/actix-web-example"
 ]

example-projects/actix-web-example/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "actix-web-example"
+version = "0.1.0"
+authors = ["Francesco Guardiani <francescoguard@gmail.com>"]
+edition = "2018"
+
+[dependencies]
+cloudevents-sdk = { path = "../.." }
+cloudevents-sdk-actix-web = { path = "../../cloudevents-sdk-actix-web" }
+actix-web = "2"
+actix-rt = "1"
+lazy_static = "1.4.0"
+bytes = "^0.5"
+futures = "^0.3"
+serde_json = "^1.0"
+url = { version = "^2.1" }
+env_logger = "0.7.1"
+
+[workspace]

example-projects/actix-web-example/src/main.rs

@@ -0,0 +1,45 @@
+use actix_web::{get, post, web, App, HttpRequest, HttpResponse, HttpServer};
+use cloudevents::EventBuilder;
+use url::Url;
+use std::str::FromStr;
+use serde_json::json;
+
+#[post("/")]
+async fn post_event(req: HttpRequest, payload: web::Payload) -> Result<String, actix_web::Error> {
+    let event = cloudevents_sdk_actix_web::request_to_event(&req, payload).await?;
+    println!("Received Event: {:?}", event);
+    Ok(format!("{:?}", event))
+}
+
+#[get("/")]
+async fn get_event() -> Result<HttpResponse, actix_web::Error> {
+    let payload = json!({"hello": "world"});
+
+    Ok(cloudevents_sdk_actix_web::event_to_response(
+        EventBuilder::new()
+            .id("0001")
+            .ty("example.test")
+            .source(Url::from_str("http://localhost/").unwrap())
+            .data("application/json", payload)
+            .extension("someint", "10")
+            .build(),
+        HttpResponse::Ok()
+    ).await?)
+}
+
+#[actix_rt::main]
+async fn main() -> std::io::Result<()> {
+    std::env::set_var("RUST_LOG", "actix_server=info,actix_web=info");
+    env_logger::init();
+
+    HttpServer::new(|| {
+        App::new()
+            .wrap(actix_web::middleware::Logger::default())
+            .service(post_event)
+            .service(get_event)
+    })
+        .bind("127.0.0.1:8080")?
+        .workers(1)
+        .run()
+        .await
+}