Fix blank page on loading ERC tokens; use indexedDb instead of localStorage to store tokens list (#100)

src/components/ERC1155_Pool.tsx

@@ -1,6 +1,7 @@
 import React, { useEffect } from "react";
 import { getAllERC1155 } from "src/api/client";
 import { setERC1155Pool, ERC1155 } from "src/hooks/ERC1155_Pool";
+import { IndexedDbKeyPath, IndexedDbStore, saveToIndexedDB } from "../utils/indexedDB";
 
 export function ERC1155_Pool() {
   useEffect(() => {
@@ -8,14 +9,21 @@ export function ERC1155_Pool() {
 
     const getRates = async () => {
       try {
-        const erc1155: ERC1155[] = await getAllERC1155();
         const erc1155Map = {} as Record<string, ERC1155>;
-        erc1155.forEach((i: any) => {
+        let erc1155: ERC1155[] = await getAllERC1155();
-          erc1155Map[i.address] = i;
+        erc1155 = erc1155.map(item => {
-        });
+          erc1155Map[item.address] = item;
-
+          return {
-        window.localStorage.setItem("ERC1155_Pool", JSON.stringify(erc1155Map));
+            [IndexedDbKeyPath]: item.address,
+            ...item
+          }
+        })
         setERC1155Pool(erc1155Map);
+        await saveToIndexedDB(IndexedDbStore.ERC1155Pool, erc1155)
+        localStorage.setItem(IndexedDbStore.ERC1155Pool, '1')
+        console.log(`ERC1155 tokens is updated, count: ${erc1155.length}`)
+      } catch (e) {
+        console.error('Cannot update ERC1155 tokens', (e as Error).message)
       } finally {
         clearTimeout(tId);
         tId = window.setTimeout(getRates, 10 * 60 * 1e3);
@@ -26,7 +34,7 @@ export function ERC1155_Pool() {
       () => {
         getRates();
       },
-      window.localStorage.getItem("ERC1155_Pool") ? 2200 : 0
+      window.localStorage.getItem(IndexedDbStore.ERC1155Pool) ? 2200 : 0
     );
 
     return () => {

src/components/ERC20_Pool.tsx

@@ -1,6 +1,7 @@
 import React, { useEffect } from "react";
 import { getAllERC20 } from "src/api/client";
 import { setERC20Pool, Erc20 } from "src/hooks/ERC20_Pool";
+import { IndexedDbKeyPath, IndexedDbStore, saveToIndexedDB } from "../utils/indexedDB";
 
 export function ERC20_Pool() {
   useEffect(() => {
@@ -8,14 +9,21 @@ export function ERC20_Pool() {
 
     const getRates = async () => {
       try {
-        const erc20: Erc20[] = await getAllERC20();
+        let erc20: Erc20[] = await getAllERC20();
         const erc20Map = {} as Record<string, Erc20>;
-        erc20.forEach((i: any) => {
+        erc20 = erc20.map((item) => {
-          erc20Map[i.address] = i;
+          erc20Map[item.address] = item;
+          return {
+            [IndexedDbKeyPath]: item.address,
+            ...item
+          }
         });
-
-        window.localStorage.setItem("ERC20_Pool", JSON.stringify(erc20Map));
         setERC20Pool(erc20Map);
+        await saveToIndexedDB(IndexedDbStore.ERC20Pool, erc20)
+        localStorage.setItem(IndexedDbStore.ERC20Pool, '1')
+        console.log(`ERC20 tokens updated, count: ${erc20.length}`)
+      } catch (e) {
+        console.error('Cannot update ERC20 tokens', (e as Error).message)
       } finally {
         window.clearTimeout(tId);
         tId = window.setTimeout(getRates, 10 * 60 * 1e3);
@@ -26,7 +34,7 @@ export function ERC20_Pool() {
       () => {
         getRates();
       },
-      window.localStorage.getItem("ERC20_Pool") ? 2000 : 0
+      window.localStorage.getItem(IndexedDbStore.ERC20Pool) ? 2000 : 0
     );
 
     return () => {

src/components/ERC721_Pool.tsx

@@ -1,6 +1,7 @@
 import React, { useEffect } from "react";
 import { getAllERC721 } from "src/api/client";
 import { setERC721Pool, ERC721 } from "src/hooks/ERC721_Pool";
+import { IndexedDbKeyPath, IndexedDbStore, saveToIndexedDB } from "../utils/indexedDB";
 
 export function ERC721_Pool() {
   useEffect(() => {
@@ -8,14 +9,21 @@ export function ERC721_Pool() {
 
     const getRates = async () => {
       try {
-        const erc721: ERC721[] = await getAllERC721();
+        let erc721: ERC721[] = await getAllERC721();
         const erc721Map = {} as Record<string, ERC721>;
-        erc721.forEach((i: any) => {
+        erc721 = erc721.map((item) => {
-          erc721Map[i.address] = i;
+          erc721Map[item.address] = item;
+          return {
+            [IndexedDbKeyPath]: item.address,
+            ...item
+          }
         });
-
-        window.localStorage.setItem("ERC721_Pool", JSON.stringify(erc721Map));
         setERC721Pool(erc721Map);
+        await saveToIndexedDB(IndexedDbStore.ERC721Pool, erc721)
+        localStorage.setItem(IndexedDbStore.ERC721Pool, '1')
+        console.log(`ERC721 tokens is updated, count: ${erc721.length}`)
+      } catch (e) {
+        console.error('Cannot update ERC721 tokens', (e as Error).message)
       } finally {
         clearTimeout(tId);
         tId = window.setTimeout(getRates, 10 * 60 * 1e3);
@@ -26,7 +34,7 @@ export function ERC721_Pool() {
       () => {
         getRates();
       },
-      window.localStorage.getItem("ERC721_Pool") ? 2100 : 0
+      window.localStorage.getItem(IndexedDbStore.ERC721Pool) ? 2100 : 0
     );
 
     return () => {

src/hooks/ERC1155_Pool.ts

@@ -1,5 +1,6 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { singletonHook } from "react-singleton-hook";
+import { IndexedDbStore, loadFromIndexedDB } from "../utils/indexedDB";
 
 const initValue: ERC1155_Pool = {};
 
@@ -8,12 +9,24 @@ let globalSetMode = () => {
 };
 
 export const useERC1155Pool = singletonHook(initValue, () => {
-  const pool =
+  const getPool = async () => {
-    (JSON.parse(
+    try {
-      window.localStorage.getItem("ERC1155_Pool") || "{}"
+      const erc1155 = await loadFromIndexedDB(IndexedDbStore.ERC1155Pool)
-    ) as ERC1155_Pool) || initValue;
+      const erc1155Map = {} as Record<string, ERC1155>;
+      erc1155.forEach(item => {
+        erc1155Map[item.address] = item;
+      })
+      setMode(erc1155Map)
+    } catch (e) {
+      console.error('Cannot get ERC1155 records: ', (e as Error).message)
+    }
+  }
+
+  useEffect(() => {
+    getPool()
+  }, [])
 
-  const [mode, setMode] = useState<ERC1155_Pool>(pool);
+  const [mode, setMode] = useState<ERC1155_Pool>(initValue);
   //@ts-ignore
   globalSetMode = setMode;
   return mode;

src/hooks/ERC20_Pool.ts

@@ -1,5 +1,6 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { singletonHook } from "react-singleton-hook";
+import { IndexedDbStore, loadFromIndexedDB } from "../utils/indexedDB";
 
 const initValue: ERC20_Pool = {};
 
@@ -8,12 +9,24 @@ let globalSetMode = () => {
 };
 
 export const useERC20Pool = singletonHook(initValue, () => {
-  const pool =
+  const getPool = async () => {
-    (JSON.parse(
+    try {
-      window.localStorage.getItem("ERC20_Pool") || "{}"
+      const erc20 = await loadFromIndexedDB(IndexedDbStore.ERC20Pool)
-    ) as ERC20_Pool) || initValue;
+      const erc20Map = {} as Record<string, Erc20>;
+      erc20.forEach(item => {
+        erc20Map[item.address] = item;
+      })
+      setMode(erc20Map)
+    } catch (e) {
+      console.error('Cannot get ERC20 records: ', (e as Error).message)
+    }
+  }
+
+  useEffect(() => {
+    getPool()
+  }, [])
 
-  const [mode, setMode] = useState<ERC20_Pool>(pool);
+  const [mode, setMode] = useState<ERC20_Pool>(initValue);
   //@ts-ignore
   globalSetMode = setMode;
   return mode;

src/hooks/ERC721_Pool.ts

@@ -1,5 +1,6 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { singletonHook } from "react-singleton-hook";
+import { IndexedDbStore, loadFromIndexedDB } from "../utils/indexedDB";
 
 const initValue: ERC721_Pool = {};
 
@@ -8,12 +9,24 @@ let globalSetMode = () => {
 };
 
 export const useERC721Pool = singletonHook(initValue, () => {
-  const pool =
+  const getPool = async () => {
-    (JSON.parse(
+    try {
-      window.localStorage.getItem("ERC721_Pool") || "{}"
+      const erc721 = await loadFromIndexedDB(IndexedDbStore.ERC721Pool)
-    ) as ERC721_Pool) || initValue;
+      const erc721Map = {} as Record<string, ERC721>;
+      erc721.forEach(item => {
+        erc721Map[item.address] = item;
+      })
+      setMode(erc721Map)
+    } catch (e) {
+      console.error('Cannot get ERC721 records: ', (e as Error).message)
+    }
+  }
+
+  useEffect(() => {
+    getPool()
+  }, [])
 
-  const [mode, setMode] = useState<ERC721_Pool>(pool);
+  const [mode, setMode] = useState<ERC721_Pool>(initValue);
   //@ts-ignore
   globalSetMode = setMode;
   return mode;

src/pages/AddressPage/TokenInfo.tsx

@@ -45,7 +45,7 @@ export function TokensInfo(props: { value: Token[] }) {
 
   const erc20Tokens = value
     .filter((i) => filterWithBalance(i.balance))
-    .filter((i) => i.isERC20)
+    .filter((i) => i.isERC20 && erc20Map[i.tokenAddress])
     .map((item) => ({
       ...item,
       symbol: erc20Map[item.tokenAddress].symbol,
@@ -55,7 +55,7 @@ export function TokensInfo(props: { value: Token[] }) {
 
   const erc721Tokens = value
     .filter((i) => filterWithBalance(i.balance))
-    .filter((i) => i.isERC721)
+    .filter((i) => i.isERC721 && erc721Map[i.tokenAddress])
     .map((item) => ({
       ...item,
       symbol: erc721Map[item.tokenAddress].symbol,
@@ -64,7 +64,7 @@ export function TokensInfo(props: { value: Token[] }) {
 
   const erc1155Tokens = value
     .filter((i) => filterWithBalance(i.balance))
-    .filter((i) => i.isERC1155)
+    .filter((i) => i.isERC1155 && erc1155Map[i.tokenAddress])
     .map((item) => ({
       ...item,
       symbol: erc1155Map[item.tokenAddress].symbol,

src/pages/ERC20List/ERC20Table.tsx

@@ -152,7 +152,7 @@ function getColumns(props: any) {
       render: (data: Erc20) => <Address address={data.address} displayHash />,
     },
     {
-      property: "totalSupply",
+      property: "circulatingSupply",
       size: "small",
       resizeable: false,
       header: (

src/utils/indexedDB.ts

@@ -0,0 +1,84 @@
+export enum IndexedDbStore {
+  ERC1155Pool = 'ERC1155_Pool',
+  ERC20Pool = 'ERC20_Pool',
+  ERC721Pool = 'ERC721_Pool',
+}
+
+export const IndexedDbKeyPath = '_id'
+
+const DbVersion = 1
+
+export const saveToIndexedDB = (storeName: IndexedDbStore, objects: any[]) => {
+  return new Promise(
+    function(resolve, reject) {
+      const dbRequest = indexedDB.open(storeName, DbVersion);
+
+      dbRequest.onerror = function() {
+        reject(Error('IndexedDB error'));
+      };
+
+      dbRequest.onupgradeneeded = function(event) {
+        // @ts-ignore
+        const db = event.target.result;
+        db.createObjectStore(storeName, { keyPath: IndexedDbKeyPath });
+      };
+
+      dbRequest.onsuccess = function() {
+        let db = dbRequest.result;
+        db.onversionchange = function() {
+          db.close();
+          console.log('Database is outdated, please reload the page');
+        };
+        const transaction = db.transaction([storeName], 'readwrite');
+        const objectStore = transaction.objectStore(storeName);
+        objects.forEach((item, i, arr) => {
+          const objectRequest = objectStore.put(item);
+          if (i === arr.length - 1) {
+            objectRequest.onsuccess = function() {
+              resolve('Data saved');
+            };
+          }
+        })
+      };
+
+      dbRequest.onblocked = function() {
+        reject(Error(`IndexedDB ${storeName} is blocked`));
+      };
+    }
+  );
+}
+
+export const loadFromIndexedDB = (storeName: IndexedDbStore): Promise<any[]> => {
+  return new Promise(
+    function(resolve, reject) {
+      const dbRequest = indexedDB.open(storeName, DbVersion);
+
+      dbRequest.onerror = function() {
+        reject(Error('IndexedDB error'));
+      };
+
+      dbRequest.onupgradeneeded = function(event) {
+        // @ts-ignore
+        event.target.transaction.abort();
+        reject(Error('Not found'));
+      };
+
+      dbRequest.onsuccess = function(event) {
+        // @ts-ignore
+        const database = event.target.result;
+        const transaction = database.transaction([storeName]);
+        const objectStore = transaction.objectStore(storeName);
+        const objectRequest = objectStore.getAll();
+
+        objectRequest.onerror = function(e: Error) {
+          reject(Error(`Indexed db error: ${e.message}`));
+        };
+
+        objectRequest.onsuccess = function(event: any) {
+          if (objectRequest.result) resolve(objectRequest.result);
+          else reject(Error('Objects is not found'));
+        };
+      };
+    }
+  );
+}