Parse JSON from post request

Accept a post request and try to parse it expecting the data is
formated in JSON.

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "webhookey"
+version = "0.1.0"
+authors = ["finga <coding@onders.org>"]
+edition = "2018"
+
+[dependencies]
+rocket = "0.4"
+rocket_contrib = { version = "0.4", default-features = false, features = ["json"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"

src/main.rs

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+#![feature(proc_macro_hygiene, decl_macro)]
+
+use rocket::{get, post, routes};
+use rocket_contrib::json::Json;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Deserialize, Serialize)]
+struct Data (serde_json::Value);
+
+#[get("/")]
+fn index() -> &'static str {
+    "Hello, webhookey!"
+}
+
+#[post("/", format = "json", data = "<data>")]
+fn receive_hook(data: Json<Data>) -> String {
+    format!("data: {:?}", data)
+}
+
+fn main() {
+    rocket::ignite()
+        .mount("/", routes![index, receive_hook])
+        .launch();
+}