fix(PTP-395): refactor auth class

.eslintrc.json

@@ -29,6 +29,7 @@
         "ignoreRestSiblings": true
       }
     ],
+    "object-curly-newline": "off",
     "import/extensions": ["error", "ignorePackages", {
       "js": "never"
     }]

.github/workflows/test.yml

@@ -35,6 +35,8 @@ jobs:
         run: npm run test
         env:
           RPC_URL: ${{ secrets.RPC_URL }}
+          PROJECT_ID: ${{ secrets.PROJECT_ID }}
+          SECRET_ID: ${{ secrets.SECRET_ID }}
 
       - name: Run e2e tests
         run: npm run test:e2e

.jshintrc

@@ -0,0 +1,3 @@
+{
+    "esversion": 2022
+}

lib/Auth/index.js

@@ -3,19 +3,74 @@
  * Copyright(c) https://consensys.net/
  * MIT Licensed
  */
-
-/* eslint-disable */
+import { ethers } from 'ethers';
 
 export default class Auth {
-  constructor({ accountAddress, privateKey }) {
-    this._accountAddress = accountAddress;
-    this.privateKey = privateKey;
+  #privateKey = null;
+
+  #projectId = null;
+
+  #secretId = null;
+
+  #rpcUrl = null;
+
+  #provider = null;
+
+  #chainId = null;
+
+  constructor({ privateKey, projectId, secretId, rpcUrl, chainId }) {
+    if (!privateKey) throw new Error('[Auth.constructor] privateKey is missing!');
+    if (!projectId) throw new Error('[Auth.constructor] projectId is missing!');
+    if (!secretId) throw new Error('[Auth.constructor] secretId is missing!');
+    if (!chainId) throw new Error('[Auth.constructor] chainId is missing!');
+
+    if (rpcUrl) {
+      this.#rpcUrl = rpcUrl;
+    }
+
+    this.#privateKey = privateKey;
+    this.#projectId = projectId;
+    this.#secretId = secretId;
+    this.#chainId = chainId;
+  }
+
+  getChainId() {
+    return this.#chainId;
+  }
+
+  getApiAuthHeader() {
+    return {
+      Authorization: `Basic ${this.#base64encode(this.#projectId, this.#secretId)}`,
+    };
+  }
+
+  #base64encode() {
+    return Buffer.from(`${this.#projectId}:${this.#secretId}`).toString('base64');
   }
 
-  async authenticate() {
-    const userAccount =
-      await `User authenticated with address ${this._accountAddress} & key ${this._key}.`;
+  getApiAuth() {
+    return this.#base64encode();
+  }
+
+  getSigner() {
+    if (!this.#provider) throw new Error('[Auth.getSigner] You need to set a provider');
+    return new ethers.Wallet(this.#privateKey, this.#provider);
+  }
+
+  getProvider(injectedProvider) {
+    if (!injectedProvider && !this.#rpcUrl) {
+      throw new Error(
+        '[Auth.getProvider] You need to pass an rpcUrl to the constructor or pass an injected provider to this function!',
+      );
+    }
+
+    if (injectedProvider) {
+      this.#provider = new ethers.providers.Web3Provider(injectedProvider);
+      return this.#provider;
+    }
 
-    return console.log(userAccount);
+    // eslint-disable-next-line new-cap
+    this.#provider = new ethers.providers.getDefaultProvider(this.#rpcUrl);
+    return this.#provider;
   }
 }