Add serde serialization suppor to proto types.

build.rs

@@ -1,3 +1,8 @@
 fn main() {
-    prost_build::compile_protos(&["proto/cofd.proto"], &["proto/"]).unwrap();
+    let mut config = prost_build::Config::new();
+    config.type_attribute(".", "#[derive(Serialize)]");
+    config.type_attribute(".", "#[serde(rename_all = \"camelCase\")]");
+    config
+        .compile_protos(&["proto/cofd.proto"], &["src/", "proto/"])
+        .unwrap();
 }

src/errors.rs

@@ -22,6 +22,9 @@ pub enum Error {
 
     #[error("serialization error: {0}")]
     SerializationError(#[from] prost::EncodeError),
+
+    #[error("deserialization error: {0}")]
+    DeserializationError(#[from] prost::DecodeError),
 }
 
 #[derive(Error, Debug)]

src/main.rs

@@ -9,6 +9,11 @@ extern crate rocket_contrib;
 #[macro_use]
 extern crate diesel;
 
+// Seemingly necessary to get serde::Serialize into scope for Prost
+// code generation.
+#[macro_use]
+extern crate serde_derive;
+
 use rocket_contrib::templates::Template;
 
 pub mod catchers;

src/routes/characters.rs

@@ -22,6 +22,13 @@ struct NewCharacterForm {
     name: String, //TODO add game system
 }
 
+#[derive(Serialize)]
+struct ViewCharacterTemlate<'a, T> {
+    pub name: &'a str,
+    pub username: &'a str,
+    pub sheet: T,
+}
+
 #[get("/<username>/<character_id>")]
 fn view_character(
     character_id: i32,
@@ -36,9 +43,17 @@ fn view_character(
         .and_then(|c| c.as_visible_for(logged_in_user))
         .ok_or(Error::NotFound)?;
 
-    let mut context = HashMap::new();
-    context.insert("name", character.character_name);
-    context.insert("username", user.username);
+    //TODO determine sheet type and deserialize based on that.
+    use crate::models::proto::cofd::CofdSheet;
+    use prost::Message;
+    let sheet = CofdSheet::decode(character.data.as_ref())?;
+
+    let context = ViewCharacterTemlate {
+        name: &character.character_name,
+        username: &user.username,
+        sheet: sheet,
+    };
+
     Ok(Template::render("view_character", context))
 }
 

templates/view_character.html.tera

@@ -4,5 +4,6 @@
 <div>
     <h1>Character {{name}}</h1>
     <h3>User: {{username}}</h3>
+    <p>Strength: {{sheet.strength}}</p>
 </div>
 {% endblock content %}