Deprecates Celo legacy transaction type (0)

CONTRIBUTING.md

@@ -0,0 +1,75 @@
+# Contributing
+
+Thank you for your interest in improving the celo-ethers-wrapper.
+
+This guide is intended to help you get started with contributing. By following these steps, you will
+understand the development process and workflow.
+
+### Cloning the repository
+
+To start contributing to the project, fork it and clone it to your local machine using git:
+
+```sh
+$ git clone https://github.com/jmrossy/celo-ethers-wrapper.git
+```
+
+Navigate to the project's root directory:
+
+```sh
+$ cd celo-ethers-wrapper
+```
+
+### Installing Node.js
+
+We use [Node.js](https://nodejs.org/en/) to run the project locally. You need to install the
+**Node.js version** specified in [package.json > engines > node](/package.json). To do so, run:
+
+```sh
+$ nvm install <specified-version>
+$ nvm use <specified-version>
+```
+
+### Installing dependencies
+
+Once in the project's root directory, run the following command to install the project's
+dependencies:
+
+```sh
+$ yarn install
+```
+
+After installing the dependencies, the project is ready to be run.
+
+### Running the test suite
+
+1.  Create an `.env.test.local` file:
+
+    ```sh
+    $ cp tests/.env.test.example tests/.env.test.local
+    ```
+
+2.  Generate a brand new wallet (or use an existing development wallet of yours) and paste its
+    mnemonic phrase into `.env.test.local`:
+
+    ```txt
+    MNEMONIC='<PASTE YOUR MNEMONIC PHRASE HERE>'
+    ```
+
+3.  Ensure the wallet address has at least 1 CELO and 1 USDC on the Celo Alfajores testnet. 
+
+    If you need more, you can request:
+    1.  testnet CELO at [faucet.celo.org](https://faucet.celo.org/alfajores), and 
+    2. testnet USDC from
+    [faucet.circle.com](https://faucet.circle.com/).
+
+4.  Now you're ready to run tests with:
+
+    ```sh
+    $ yarn test
+    ```
+
+> **INFO** Some tests are run automatically when you open a Pull Request on GitHub.
+
+### Open a Pull Request
+
+✅ Now you're ready to contribute to celo-ethers-wrapper!

package.json

@@ -20,11 +20,12 @@
     "test": "jest ./tests"
   },
   "engines": {
-    "node": ">=10"
+    "node": ">=18.14.2"
   },
   "devDependencies": {
     "@jest/globals": "^29.7.0",
     "@types/node": "^20.8.2",
+    "dotenv": "^16.4.5",
     "ethers": "^6.7.1",
     "jest": "^29.7.0",
     "ts-jest": "^29.1.1",

src/lib/CeloProvider.ts

@@ -1,11 +1,11 @@
 import {
+  FeeData,
   JsonRpcProvider,
   PerformActionRequest,
   TransactionResponse,
   TransactionResponseParams,
   getBigInt,
   resolveProperties,
-  toBeHex,
 } from "ethers";
 import { CeloTransactionRequest, parseCeloTransaction } from "./transactions";
 
@@ -19,10 +19,7 @@ export default class CeloProvider extends JsonRpcProvider {
         // If there are no EIP-1559 properties, it might be non-EIP-1559
         if (tx.maxFeePerGas == null && tx.maxPriorityFeePerGas == null) {
           const feeData = await this.getFeeData();
-          if (
-            feeData.maxFeePerGas == null &&
-            feeData.maxPriorityFeePerGas == null
-          ) {
+          if (feeData.maxFeePerGas == null && feeData.maxPriorityFeePerGas == null) {
             // Network doesn't know about EIP-1559 (and hence type)
             req = Object.assign({}, req, {
               transaction: Object.assign({}, tx, { type: undefined }),
@@ -45,9 +42,7 @@ export default class CeloProvider extends JsonRpcProvider {
    * Override to handle alternative gas currencies
    * prepareRequest in https://github.com/ethers-io/ethers.js/blob/master/packages/providers/src.ts/json-rpc-provider.ts
    */
-  getRpcRequest(
-    req: PerformActionRequest
-  ): null | { method: string; args: Array<any> } {
+  getRpcRequest(req: PerformActionRequest): null | { method: string; args: Array<any> } {
     if (req.method === "getGasPrice") {
       // @ts-expect-error
       const param = req.feeCurrencyAddress
@@ -61,8 +56,6 @@ export default class CeloProvider extends JsonRpcProvider {
       const extraneous_keys = [
         ["from", (x: string) => x],
         ["feeCurrency", (x: string) => x],
-        ["gatewayFeeRecipient", (x: string) => x],
-        ["gatewayFee", toBeHex],
       ] as const;
 
       const tx = {
@@ -93,6 +86,20 @@ export default class CeloProvider extends JsonRpcProvider {
     );
   }
 
+  async getFeeData(feeCurrency?: string): Promise<FeeData> {
+    if (!feeCurrency) {
+      return super.getFeeData();
+    }
+    // On Celo, `eth_gasPrice` returns the base fee for the given currency multiplied 2 
+    // and doesn't include tips. Source: https://github.com/jmrossy/celo-ethers-wrapper/pull/20#discussion_r1579179736
+    const baseFeePerGasInFeeCurrency = getBigInt(await this.send("eth_gasPrice", [feeCurrency]));
+    const maxPriorityFeePerGasInFeeCurrency = getBigInt(
+      await this.send("eth_maxPriorityFeePerGas", [feeCurrency])
+    );
+    const maxFeePerGasInFeeCurrency = baseFeePerGasInFeeCurrency + maxPriorityFeePerGasInFeeCurrency;
+    return new FeeData(null, maxFeePerGasInFeeCurrency, maxPriorityFeePerGasInFeeCurrency);
+  }
+
   async broadcastTransaction(signedTx: string): Promise<TransactionResponse> {
     const { hash } = await resolveProperties({
       blockNumber: this.getBlockNumber(),

src/lib/CeloWallet.ts

@@ -13,13 +13,8 @@ import {
   Wordlist,
 } from "ethers";
 import CeloProvider from "./CeloProvider";
-import { adjustForGasInflation } from "./transaction/utils";
-import {
-  CeloTransaction,
-  CeloTransactionRequest,
-  getTxType,
-  serializeCeloTransaction,
-} from "./transactions";
+import { adjustForGasInflation, isEmpty } from "./transaction/utils";
+import { CeloTransaction, CeloTransactionRequest, serializeCeloTransaction } from "./transactions";
 
 const forwardErrors = [
   "INSUFFICIENT_FUNDS",
@@ -32,33 +27,24 @@ export default class CeloWallet extends Wallet {
    * Override to skip checkTransaction step which rejects Celo tx properties
    * https://github.com/ethers-io/ethers.js/blob/master/packages/abstract-signer/src.ts/index.ts
    */
-  async populateTransaction(
-    transaction: CeloTransactionRequest
-  ): Promise<CeloTransaction> {
+  async populateTransaction(transaction: CeloTransactionRequest): Promise<CeloTransaction> {
     let tx: any = await resolveProperties(transaction);
-    if (tx.to != null) {
-      tx.to = Promise.resolve(tx.to);
-    }
 
-    if (tx.from == null) {
+    if (isEmpty(tx.from)) {
       tx.from = this.address;
     }
-
-    const type = getTxType(tx);
-    if (!type && tx.gasPrice == null) {
-      tx.gasPrice = this.getGasPrice();
-    }
-
-    if (tx.nonce == null) {
+    if (isEmpty(tx.nonce)) {
       tx.nonce = await this.provider?.getTransactionCount(tx.from, "pending");
     }
-
-    tx = await resolveProperties(tx);
-    if (tx.gasLimit == null) {
-      tx.gasLimit = this.estimateGas(tx).catch((error) => {
+    if (isEmpty(tx.gasLimit)) {
+      try {
+        tx.gasLimit = await this.estimateGas(tx);
+      } catch (error: any) {
+        // If there is an error code it's an expected error
         if (forwardErrors.indexOf(error.code) >= 0) {
           throw error;
         }
+        // If there is no error code it's an unexpected error
         assertArgument(
           false,
           "cannot estimate gas; transaction may fail or may require manual gas limit",
@@ -68,26 +54,28 @@ export default class CeloWallet extends Wallet {
             tx: tx,
           }
         );
-      });
+      }
     }
 
-    if (tx.chainId == null) {
+    if (isEmpty(tx.maxPriorityFeePerGas) || isEmpty(tx.maxFeePerGas)) {
+      const { maxFeePerGas, maxPriorityFeePerGas } = (await (
+        this.provider as CeloProvider
+      )?.getFeeData(tx.feeCurrency as string | undefined))!;
+      tx.maxFeePerGas = maxFeePerGas;
+      tx.maxPriorityFeePerGas = maxPriorityFeePerGas;
+    }
+
+    if (isEmpty(tx.chainId)) {
       tx.chainId = (await this.provider!.getNetwork()).chainId;
     } else {
-      tx.chainId = Promise.all([
-        Promise.resolve(tx.chainId),
-        (await this.provider!.getNetwork()).chainId,
-      ]).then((results) => {
-        if (results[1] !== 0n && results[0] !== results[1]) {
-          assertArgument(
-            false,
-            "chainId address mismatch",
-            "transaction",
-            transaction
-          );
+      tx.chainId = Promise.all([tx.chainId, (await this.provider!.getNetwork()).chainId]).then(
+        ([txChainId, providerChainId]) => {
+          if (providerChainId !== 0n && txChainId !== providerChainId) {
+            assertArgument(false, "chainId address mismatch", "transaction", transaction);
+          }
+          return txChainId;
         }
-        return results[0];
-      });
+      );
     }
     return resolveProperties<CeloTransaction>(tx);
   }
@@ -111,19 +99,15 @@ export default class CeloWallet extends Wallet {
       delete tx.from;
     }
 
-    const signature = this.signingKey.sign(
-      keccak256(serializeCeloTransaction(tx))
-    );
+    const signature = this.signingKey.sign(keccak256(serializeCeloTransaction(tx)));
     const serialized = serializeCeloTransaction(tx, signature);
     return serialized;
   }
 
   /**
    * Override to serialize transaction using custom serialize method
    */
-  async sendTransaction(
-    transaction: CeloTransactionRequest
-  ): Promise<TransactionResponse> {
+  async sendTransaction(transaction: CeloTransactionRequest): Promise<TransactionResponse> {
     const provider = this.provider!;
 
     const pop = await this.populateTransaction(transaction);
@@ -150,15 +134,8 @@ export default class CeloWallet extends Wallet {
     } as PerformActionRequest);
   }
 
-  static fromMnemonic(
-    phrase: string,
-    path?: string,
-    wordlist?: Wordlist | null
-  ) {
-    const hdWallet = HDNodeWallet.fromMnemonic(
-      Mnemonic.fromPhrase(phrase, null, wordlist),
-      path
-    );
+  static fromMnemonic(phrase: string, path?: string, wordlist?: Wordlist | null) {
+    const hdWallet = HDNodeWallet.fromMnemonic(Mnemonic.fromPhrase(phrase, null, wordlist), path);
 
     return new CeloWallet(hdWallet.privateKey, new CeloProvider());
   }

src/lib/CeloscanProvider.ts

@@ -17,7 +17,7 @@ export class CeloscanProvider extends EtherscanProvider {
       case "celo":
         return "https://api.celoscan.io";
       case "alfajores":
-        return "https://alfajores.celoscan.io";
+        return "https://api-alfajores.celoscan.io";
       case "baklava":
         // baklava is currently not supported by celoscan.io, so we use Blockscout
         return "https://explorer.celo.org/baklava";

src/lib/transaction/utils.ts

@@ -1,7 +1,7 @@
 import { hexlify, BigNumberish, isBytesLike, toBeHex } from "ethers";
 import { GAS_INFLATION_FACTOR } from "../../consts";
 
-function isEmpty(value: string | BigNumberish | undefined | null) {
+export function isEmpty(value: string | BigNumberish | undefined | null) {
   if (value === undefined || value === null || value === "0" || value === 0n) {
     return true;
   }
@@ -11,30 +11,12 @@ function isEmpty(value: string | BigNumberish | undefined | null) {
   return toBeHex(value) === "0x0";
 }
 
-function isPresent(value: string | BigNumberish | undefined | null) {
+export function isPresent(value: string | BigNumberish | undefined | null) {
   return !isEmpty(value);
 }
 
-export function isEIP1559(tx: any): boolean {
-  return isPresent(tx.maxFeePerGas) && isPresent(tx.maxPriorityFeePerGas);
-}
-
 export function isCIP64(tx: any) {
-  return (
-    isEIP1559(tx) &&
-    isPresent(tx.feeCurrency) &&
-    !isPresent(tx.gatewayFeeRecipient) &&
-    !isPresent(tx.gatewayFeeRecipient)
-  );
-}
-
-export function isCIP42(tx: any): boolean {
-  return (
-    isEIP1559(tx) &&
-    (isPresent(tx.feeCurrency) ||
-      isPresent(tx.gatewayFeeRecipient) ||
-      isPresent(tx.gatewayFee))
-  );
+  return isPresent(tx.feeCurrency);
 }
 
 export function concatHex(values: string[]): `0x${string}` {