feat: parse rpc full block from hex to binary representation

backend/src/api/bitcoin/bitcoin-api.ts

@@ -77,7 +77,8 @@ class BitcoinApi implements AbstractBitcoinApi {
   }
 
   $getRawBlock(hash: string): Promise<string> {
-    return this.bitcoindClient.getBlock(hash, 0);
+    return this.bitcoindClient.getBlock(hash, 0)
+      .then((raw: string) => Buffer.from(raw, "hex"));
   }
 
   $getBlockHash(height: number): Promise<string> {

frontend/src/app/docs/api-docs/api-docs-data.ts

@@ -2070,7 +2070,7 @@ export const restApiDocsData = [
     fragment: "get-block-raw",
     title: "GET Block Raw",
     description: {
-      default: "Returns the raw block representation in binary for Esplora backend, or hex for Bitcoin Core RPC backend."
+      default: "Returns the raw block representation in binary."
     },
     urlString: "/block/:hash/raw",
     showConditions: bitcoinNetworks.concat(liquidNetworks),