Add User Domain Model that Maps Soundcloud API response.

Cargo.toml

@@ -7,3 +7,6 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+serde = "1.0.106"
+serde_json = "1.0.51"
+serde_derive = "1.0.106"

src/lib.rs

@@ -1,3 +1,9 @@
+#[macro_use]
+extern crate serde_derive;
+
+pub mod user;
+pub use user::*;
+
 #[cfg(test)]
 mod tests {
     #[test]

src/user.rs

@@ -0,0 +1,57 @@
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+struct User {
+    id: u32,
+    username: String,
+
+    // TODO: Map these two to valid URL type rather than String.
+    avatar_url: String,
+    permalink_url: String,
+
+    city: String,
+    // TODO: Map this to country code to better utilize type system.
+    country: String,
+    track_count: u32,
+    private_tracks_count: u32,
+}
+
+#[cfg(test)]
+mod tests {
+    use super::User;
+
+    #[test]
+    fn mapping_from_api_response_works() {
+        let mock_api_response = r#"
+        {
+          "id": 3207,
+          "permalink": "jwagener",
+          "username": "Johannes Wagener",
+          "uri": "https://api.soundcloud.com/users/3207",
+          "permalink_url": "https://soundcloud.com/jwagener",
+          "avatar_url": "https://i1.sndcdn.com/avatars-000001552142-pbw8yd-large.jpg?142a848",
+          "country": "Germany",
+          "full_name": "Johannes Wagener",
+          "city": "Berlin",
+          "description": "<b>Hacker at SoundCloud</b>\r\n\r\nSome of my recent Hacks:\r\n\r\nsoundiverse.com \r\nbrowse recordings with the FiRe app by artwork\r\n\r\ntopbillin.com \r\nfind people to follow on SoundCloud\r\n\r\nchatter.fm \r\nget your account hooked up with a voicebox\r\n\r\nrecbutton.com \r\nrecord straight to your soundcloud account",
+          "discogs_name": null,
+          "myspace_name": null,
+          "website": "http://johannes.wagener.cc",
+          "website_title": "johannes.wagener.cc",
+          "online": true,
+          "track_count": 12,
+          "playlist_count": 1,
+          "followers_count": 416,
+          "followings_count": 174,
+          "public_favorites_count": 26,
+          "plan": "Pro Plus",
+          "private_tracks_count": 63,
+          "private_playlists_count": 3,
+          "primary_email_confirmed": true
+        }"#;
+
+        let u: User = serde_json::from_str(mock_api_response).unwrap();
+
+        assert_eq!(u.id, 3207);
+    }
+}