feat: getter for web3

lib/plugin.js

@@ -2,7 +2,7 @@ const Web3 = require('web3')
 const { hexToNumberString, toChecksumAddress, numberToHex } = require('web3-utils')
 
 export default (ctx, inject) => {
-  // const moduleOptions = <%= JSON.stringify(options) %>
+   const moduleOptions = <%= JSON.stringify(options) %>
 
   const instance = class Provider {
     constructor(options) {
@@ -35,6 +35,18 @@ export default (ctx, inject) => {
       }
     }
 
+    getWeb3(rpcUrl) {
+      try {
+        if (!url) {
+          throw new Error(`Please set url to params, current url ${rpcUrl}`)
+        }
+
+        return new Web3(rpcUrl)
+      } catch (err) {
+        throw new Error(`Provider method getWeb3 has error: ${err.message}`)
+      }
+    }
+
     getContract({ abi, address }) {
       return new this.web3.eth.Contract(abi, address)
     }

types/index.d.ts

@@ -75,6 +75,7 @@ interface ProviderInstance {
   waitForTxReceipt(params: WaitForTxReceiptParams): Promise<TransactionReceipt>
   batchRequest(params: BatchRequestParams): Promise<string[]>
   checkNetworkVersion(): Promise<string>
+  getWeb3(rpcUrl: string): Web3
   on(params: OnListenerParams): void
 }