improve block response

Author: Fraccaman

swagger.yml

@@ -1295,6 +1295,12 @@ components:
           type: string
         proposer:
           type: string
+        transactions:
+          type: array
+          items:
+            type: string
+        parentHash:
+          type: string
         epoch:
           type: string
     TransactionHistory:

webserver/src/repository/tranasaction.rs

@@ -41,6 +41,10 @@ pub trait TransactionRepositoryTrait {
         PaginatedResponseDb<(TransactionHistoryDb, InnerTransactionDb, i32)>,
         String,
     >;
+    async fn find_txs_by_block_height(
+        &self,
+        block_height: i32,
+    ) -> Result<Vec<WrapperTransactionDb>, String>;
 }
 
 #[async_trait]
@@ -124,4 +128,23 @@ impl TransactionRepositoryTrait for TransactionRepository {
         .map_err(|e| e.to_string())?
         .map_err(|e| e.to_string())
     }
+
+    async fn find_txs_by_block_height(
+        &self,
+        block_height: i32,
+    ) -> Result<Vec<WrapperTransactionDb>, String> {
+        let conn = self.app_state.get_db_connection().await;
+
+        conn.interact(move |conn| {
+            wrapper_transactions::table
+                .filter(
+                    wrapper_transactions::dsl::block_height.eq(block_height),
+                )
+                .select(WrapperTransactionDb::as_select())
+                .get_results(conn)
+        })
+        .await
+        .map_err(|e| e.to_string())?
+        .map_err(|e| e.to_string())
+    }
 }

webserver/src/response/block.rs

@@ -1,4 +1,5 @@
 use orm::blocks::BlockDb;
+use orm::transactions::WrapperTransactionDb;
 use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
@@ -9,11 +10,17 @@ pub struct Block {
     pub app_hash: Option<String>,
     pub timestamp: Option<String>,
     pub proposer: Option<String>,
+    pub transactions: Vec<String>,
+    pub parent_hash: Option<String>,
     pub epoch: Option<String>,
 }
 
-impl From<BlockDb> for Block {
-    fn from(block_db: BlockDb) -> Self {
+impl Block {
+    pub fn from(
+        block_db: BlockDb,
+        prev_block_db: Option<BlockDb>,
+        transactions: Vec<WrapperTransactionDb>,
+    ) -> Self {
         Self {
             height: block_db.height,
             hash: block_db.hash,
@@ -22,6 +29,13 @@ impl From<BlockDb> for Block {
                 .timestamp
                 .map(|t| t.and_utc().timestamp().to_string()),
             proposer: block_db.proposer,
+            transactions: transactions
+                .into_iter()
+                .map(|wrapper| wrapper.id.to_lowercase())
+                .collect(),
+            parent_hash: prev_block_db
+                .map(|block| block.app_hash)
+                .unwrap_or(None),
             epoch: block_db.epoch.map(|e| e.to_string()),
         }
     }

webserver/src/service/block.rs

@@ -1,17 +1,22 @@
 use crate::appstate::AppState;
 use crate::error::block::BlockError;
 use crate::repository::block::{BlockRepository, BlockRepositoryTrait};
+use crate::repository::tranasaction::{
+    TransactionRepository, TransactionRepositoryTrait,
+};
 use crate::response::block::Block;
 
 #[derive(Clone)]
 pub struct BlockService {
     block_repo: BlockRepository,
+    transaction_repo: TransactionRepository,
 }
 
 impl BlockService {
     pub fn new(app_state: AppState) -> Self {
         Self {
-            block_repo: BlockRepository::new(app_state),
+            block_repo: BlockRepository::new(app_state.clone()),
+            transaction_repo: TransactionRepository::new(app_state),
         }
     }
 
@@ -28,8 +33,23 @@ impl BlockService {
             "height".to_string(),
             height.to_string(),
         ))?;
+        let prev_block = if let Some(block_height) = block.height.checked_sub(1)
+        {
+            self.block_repo
+                .find_block_by_height(block_height)
+                .await
+                .map_err(BlockError::Database)?
+        } else {
+            None
+        };
 
-        Ok(Block::from(block))
+        let transactions = self
+            .transaction_repo
+            .find_txs_by_block_height(block.height)
+            .await
+            .map_err(BlockError::Database)?;
+
+        Ok(Block::from(block, prev_block, transactions))
     }
 
     pub async fn get_block_by_timestamp(
@@ -46,7 +66,22 @@ impl BlockService {
             "timestamp".to_string(),
             timestamp.to_string(),
         ))?;
+        let prev_block = if let Some(block_height) = block.height.checked_sub(1)
+        {
+            self.block_repo
+                .find_block_by_height(block_height)
+                .await
+                .map_err(BlockError::Database)?
+        } else {
+            None
+        };
+
+        let transactions = self
+            .transaction_repo
+            .find_txs_by_block_height(block.height)
+            .await
+            .map_err(BlockError::Database)?;
 
-        Ok(Block::from(block))
+        Ok(Block::from(block, prev_block, transactions))
     }
 }