Merge pull request #3470 from eigerco/nijo/add-support-for-get-block-header

Add support for GET /{network}/block/{height}/header

Author: raychu86

node/rest/src/lib.rs

@@ -153,6 +153,7 @@ impl<N: Network, C: ConsensusStorage<N>, R: Routing<N>> Rest<N, C, R> {
             .route(&format!("/{network}/block/:height_or_hash"), get(Self::get_block))
             // The path param here is actually only the height, but the name must match the route
             // above, otherwise there'll be a conflict at runtime.
+            .route(&format!("/{network}/block/:height_or_hash/header"), get(Self::get_block_header))
             .route(&format!("/{network}/block/:height_or_hash/transactions"), get(Self::get_block_transactions))
 
             // GET and POST ../transaction/..

node/rest/src/routes.rs

@@ -125,6 +125,14 @@ impl<N: Network, C: ConsensusStorage<N>, R: Routing<N>> Rest<N, C, R> {
         Ok(ErasedJson::pretty(rest.ledger.get_height(&hash)?))
     }
 
+    // GET /<network>/block/{height}/header
+    pub(crate) async fn get_block_header(
+        State(rest): State<Self>,
+        Path(height): Path<u32>,
+    ) -> Result<ErasedJson, RestError> {
+        Ok(ErasedJson::pretty(rest.ledger.get_header(height)?))
+    }
+
     // GET /<network>/block/{height}/transactions
     pub(crate) async fn get_block_transactions(
         State(rest): State<Self>,