fix(error standard): throw error standard

Author: Littleor

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@idealight-labs/anyweb-js-sdk",
   "description": "AnyWeb JavaScript Software Development Kit",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "license": "LGPL-3.0",
   "author": "common@idealight.ltd",
   "repository": {

src/error/provider.ts

@@ -18,15 +18,6 @@ export interface IBaseProviderOptions {
   appId: string
 }
 
-/**
- * Provider RPC Error
- */
-export interface IProviderRpcError extends Error {
-  message: string
-  code: number
-  data?: unknown
-}
-
 /**
  * Base Provider
  */

src/interface/provider.ts

@@ -14,7 +14,13 @@ import {
   IProviderRpcError,
   IRequestArguments,
 } from './interface/provider'
-import { callIframe, createIframe, isObject } from './utils/common'
+import {
+  callIframe,
+  createIframe,
+  isObject,
+  ProviderErrorCode,
+  ProviderRpcError,
+} from './utils/common'
 import config from '../package.json'
 import { AddressType, getAddressType } from './utils/address'
 import { ConsoleLike } from './utils/types'
@@ -99,7 +105,10 @@ export class Provider implements IProvider {
       if (params) {
         Provider.instance = new Provider(params)
       } else {
-        throw new Error('[AnyWeb] Provider is not initialized')
+        throw new ProviderRpcError(
+          ProviderErrorCode.SDKNotReady,
+          'Provider is not initialized'
+        )
       }
     }
     return Provider.instance
@@ -114,7 +123,10 @@ export class Provider implements IProvider {
     if (arg.length > 1) {
       return await this.request({ method: arg[0], params: arg[1] })
     }
-    throw new Error('Invalid arguments')
+    throw new ProviderRpcError(
+      ProviderErrorCode.ParamsError,
+      'Invalid arguments'
+    )
   }
 
   /**
@@ -139,12 +151,19 @@ export class Provider implements IProvider {
    */
   async request(args: IRequestArguments): Promise<unknown> {
     if (!args || typeof args !== 'object' || Array.isArray(args)) {
-      throw new Error('Invalid request arguments')
+      throw new ProviderRpcError(
+        ProviderErrorCode.ParamsError,
+        'Invalid request arguments'
+      )
     }
     const { method, params } = args
     if (!method || method.trim().length === 0) {
-      throw new Error('Method is required')
+      throw new ProviderRpcError(
+        ProviderErrorCode.ParamsError,
+        'Invalid request arguments: Method is required'
+      )
     }
+
     console.debug(`[AnyWeb] request ${method} with`, params)
     const result = await this.rawRequest(method, params)
     console.debug(`[AnyWeb] request(${method}):`, result)
@@ -168,8 +187,9 @@ export class Provider implements IProvider {
    */
   protected async rawRequest(method: string, params?: any): Promise<unknown> {
     if (!Provider.ready) {
-      throw new Error(
-        "[AnyWeb] Provider is not ready, please use on('ready', callback) to listen to ready event"
+      throw new ProviderRpcError(
+        ProviderErrorCode.SDKNotReady,
+        "Provider is not ready, please use on('ready', callback) to listen to ready event"
       )
     }
     switch (method) {
@@ -361,7 +381,10 @@ export class Provider implements IProvider {
           return false
         }
       default:
-        return 'Unsupported method'
+        throw new ProviderRpcError(
+          ProviderErrorCode.UnsupportedMethod,
+          'Unsupported Method: ' + method
+        )
     }
   }
 

src/provider.ts

@@ -8,6 +8,7 @@ import {
   IIframeData,
   IIframeEventData,
   IIframeOptions,
+  IProviderRpcError,
 } from '../interface/provider'
 import { Provider } from '../provider'
 
@@ -197,6 +198,11 @@ export const createIframe = async (url: string) => {
 
   button.onclick = () => {
     closeIframe(mask)
+
+    throw new ProviderRpcError(
+      ProviderErrorCode.Unauthorized,
+      'User canceled the operation'
+    )
   }
   document.body.appendChild(style)
 
@@ -352,3 +358,25 @@ export const isArrEqual = <T>(arr1: T[], arr2: T[]) => {
 export const isIncluded = <T>(arr1: T[], arr2: T[]): boolean => {
   return arr1.length === new Set([...arr1, ...arr2]).size
 }
+
+export enum ProviderErrorCode {
+  UserRejectedRequest = 4001,
+  Unauthorized = 4100,
+  UnsupportedMethod = 4200,
+  Disconnected = 4900,
+  ChainDisconnected = 4901,
+  SDKNotReady = 5000,
+  ParamsError = 6000,
+}
+
+export class ProviderRpcError extends Error implements IProviderRpcError {
+  code: number
+  data?: unknown
+
+  constructor(code: ProviderErrorCode, message: string) {
+    super('[AnyWeb] ' + message)
+    console.debug(`[AnyWeb] Throw the error(${code}):` + message)
+    this.code = code
+    this.name = ProviderErrorCode[code]
+  }
+}