Implement Block GET/PUT with new schema

- `Arc`+`Mutex` is replaced by `parking_lot::RwLock,` decoupled
  Read+Write and ability to upgrade read locks into write locks if
  needed
- Schema has changed, `Db` is now a struct that implements `new()` to
  return a new instance of itself, pros/cons listed in code but tl;dr
  blockchain and pending transactions are separate now
- `custom_filters` now supports extracting Block json and Transaction
  json in separate functions too
- /block GET and PUT implemented, `Blocks` currently have one check
  (transactions appear in pending transaction)
- debug is working after something, dunno how I fixed it

1 files changed, 8 insertions, 3 deletions

diff --git a/src/custom_filters.rs b/src/custom_filters.rs
index 86a78d4..7caf71a 100644
--- a/src/custom_filters.rs
+++ b/src/custom_filters.rs
@@ -3,7 +3,7 @@
 use std::convert::Infallible;
 use warp::{Filter, Rejection};
 
-use crate::schema::{Db, Transaction}; // `Block` coming later
+use crate::schema::{Block, Db, Transaction};
 
 // Database context for routes
 pub fn with_db(db: Db) -> impl Filter<Extract = (Db,), Error = Infallible> + Clone {
@@ -15,7 +15,12 @@ pub fn with_db(db: Db) -> impl Filter<Extract = (Db,), Error = Infallible> + Clo
 //     warp::query::<ListOptions>()
 // }
 
-// Accept only JSON body and reject big payloads
-pub fn json_body() -> impl Filter<Extract = (Transaction,), Error = Rejection> + Clone {
+// Accept only json encoded Transaction body and reject big payloads
+pub fn transaction_json_body() -> impl Filter<Extract = (Transaction,), Error = Rejection> + Clone {
+    warp::body::content_length_limit(1024 * 32).and(warp::body::json())
+}
+
+// Accept only json encoded Transaction body and reject big payloads
+pub fn block_json_body() -> impl Filter<Extract = (Block,), Error = Rejection> + Clone {
     warp::body::content_length_limit(1024 * 32).and(warp::body::json())
 }