add fetchGasPrice

Author: kolirt

README.md

@@ -13,6 +13,7 @@ Simple WalletConnect v2 integration package for Vue3 apps.
     - [Setup](#setup)
 - [Usage](#usage)
     - [Connect wallet button](#connect-wallet-button)
+    - [FetchGasPrice](#fetchgasprice)
     - [Multicall](#multicall)
     - [FetchBalance](#fetchbalance)
     - [FetchToken](#fetchtoken)
@@ -79,6 +80,26 @@ import {account, disconnect, connect} from '@kolirt/vue-web3-auth'
 </template>
 ```
 
+## FetchGasPrice
+```js
+import {fetchGasPrice} from '@kolirt/vue-web3-auth'
+
+let data = await fetchGasPrice()
+
+/**
+ * Result in data
+ *
+ * {
+ *  formatted: {
+ *   gasPrice: '3',
+ *   maxFeePerGas: null,
+ *   maxPriorityFeePerGas: null
+ *  },
+ *  gasPrice: 3000000000n
+ * }
+ */
+```
+
 ## Multicall
 ```ts
 import {multicallABI, multicall, chain} from '@kolirt/vue-web3-auth'

lib/gas.ts

@@ -0,0 +1,10 @@
+import type {FetchFeeData} from './types'
+import {fetchFeeData as masterFetchFeeData} from '@wagmi/core'
+import {chain} from './chain'
+
+export function fetchGasPrice(data?: FetchFeeData) {
+    return masterFetchFeeData({
+        chainId: data?.chainId || chain.value.id,
+        formatUnits: data?.formatUnits
+    })
+}

lib/index.ts

@@ -39,6 +39,10 @@ export {
     estimateWriteContractGas
 } from './contract'
 
+export {
+    fetchGasPrice
+} from './gas'
+
 export {
     multicall
 } from './multicall'

lib/types.ts

@@ -96,4 +96,9 @@ export type FetchToken = {
     chainId?: number
     address: `0x${string}`
     formatUnits?: Unit
+}
+
+export type FetchFeeData = {
+    chainId?: number
+    formatUnits?: Unit
 }