add fetchToken

Author: kolirt

README.md

@@ -15,6 +15,7 @@ Simple WalletConnect v2 integration package for Vue3 apps.
     - [Connect wallet button](#connect-wallet-button)
     - [Multicall](#multicall)
     - [FetchBalance](#fetchbalance)
+    - [FetchToken](#fetchtoken)
     - [ReadContract](#readcontract)
     - [WriteContract](#writecontract)
     - [EstimateWriteContractGas](#estimatewritecontractgas)
@@ -143,6 +144,30 @@ let tokenBalance = await fetchBalance({
  */
 ```
 
+## FetchToken
+```js
+import {fetchToken} from '@kolirt/vue-web3-auth'
+
+let data = await fetchToken({
+  address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c'
+})
+
+/**
+ * Result in data
+ *
+ * {
+ *  address: '0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c',
+ *  decimals: 18,
+ *  name: 'Wrapped BNB',
+ *  symbol: 'WBNB',
+ *  totalSupply: {
+ *   formatted: '2538454.736169014001284694',
+ *   value: 2538454736169014001284694n
+ *  }
+ * }
+ */
+```
+
 ## ReadContract
 
 ```ts

lib/index.ts

@@ -1,4 +1,5 @@
 import * as Chains from '@wagmi/core/chains'
+import exp from 'constants'
 
 export type {Chain, Options} from './types'
 
@@ -28,6 +29,10 @@ export {
     fetchBalance
 } from './balance'
 
+export {
+    fetchToken
+} from './token'
+
 export {
     readContract,
     writeContract,

lib/token.ts

@@ -0,0 +1,11 @@
+import type {FetchToken} from './types'
+import {fetchToken as masterFetchToken} from '@wagmi/core'
+import {chain} from './chain'
+
+export function fetchToken(data: FetchToken) {
+    return masterFetchToken({
+        chainId: data.chainId || chain.value.id,
+        address: data.address,
+        formatUnits: data.formatUnits
+    })
+}

lib/types.ts

@@ -90,5 +90,10 @@ export type FetchBalance = {
     address: `0x${string}`
     formatUnits?: Unit
     token?: `0x${string}`
+}
 
+export type FetchToken = {
+    chainId?: number
+    address: `0x${string}`
+    formatUnits?: Unit
 }