Remove Canapi (#540)

* Remove Canapi

It added more complexity than it helped.

* Fail if there are many blog, but none was specified

* cargo fmt

src/api/mod.rs

@@ -9,6 +9,8 @@ use serde_json;
 use plume_common::utils::random_hex;
 use plume_models::{api_tokens::*, apps::App, users::User, Error, PlumeRocket};
 
+type Api<T> = Result<Json<T>, ApiError>;
+
 #[derive(Debug)]
 pub struct ApiError(Error);
 
@@ -18,6 +20,12 @@ impl From<Error> for ApiError {
     }
 }
 
+impl From<std::option::NoneError> for ApiError {
+    fn from(err: std::option::NoneError) -> ApiError {
+        ApiError(err.into())
+    }
+}
+
 impl<'r> Responder<'r> for ApiError {
     fn respond_to(self, req: &Request) -> response::Result<'r> {
         match self.0 {