[DNM] Hero Graph remove old block for new block

src/config.ts

@@ -13,6 +13,7 @@ const config = {
         process.env.REACT_APP_EXPLORER_API_DOMAIN + '/ws'
     ),
     tokenName: process.env.REACT_APP_TOKEN_NAME || 'tXTR',
-    initialBlockCount: +(process.env.REACT_APP_INITIAL_BLOCK_COUNT || 100)
+    initialBlockCount: +(process.env.REACT_APP_INITIAL_BLOCK_COUNT || 100),
+    maxBlocks: +(process.env.REACT_APP_MAX_BLOCKS || 100)
 };
 export default config;

src/helpers/api.ts

@@ -25,6 +25,11 @@ export async function fetchBlocksData(limit = 30, sort = 'desc', page = 0): Prom
     if (sort === 'desc') {
         blocks.blocks.sort((a, b) => b.block.header.height - a.block.header.height);
     }
+
+    if(blocks.blocks.length > config.maxBlocks) {
+        blocks.blocks.splice(-1,1);
+    }
+
     return blocks;
 }