feat: add Bitcoin standard memo encoding example for bitSmiley and unit tests #196
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ws4charlie
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📝 Walkthrough📝 WalkthroughWalkthroughThis pull request introduces several changes, including the addition of a new test file ( Changes
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Actionable comments posted: 7
🧹 Outside diff range and nitpick comments (9)
memo.test.js (1)
1-4: Consider modernizing the imports and optimizing Web3 usageThe code could benefit from the following improvements:
- Use ES modules (import/export) instead of CommonJS require
- Import only the required utility from Web3 instead of the entire library
-var assert = require("assert"); -const { Header, FieldsV0, EncodingFormat, OpCode, EncodeToBytes } = require('./memo'); -const { Web3 } = require('web3'); -const web3 = new Web3(); +import assert from 'assert'; +import { Header, FieldsV0, EncodingFormat, OpCode, EncodeToBytes } from './memo'; +import { bytesToHex } from 'web3-utils';🧰 Tools
🪛 eslint
[error] 2-2: Replace
·Header,·FieldsV0,·EncodingFormat,·OpCode,·EncodeToBytes·}·=·require('./memo'with⏎··Header,⏎··FieldsV0,⏎··EncodingFormat,⏎··OpCode,⏎··EncodeToBytes,⏎}·=·require("./memo"(prettier/prettier)
[error] 3-3: Replace
'web3'with"web3"(prettier/prettier)
package.json (1)
119-119: Consider the necessity of adding web3.js alongside ethers.js.The addition of web3.js v4.15.0 alongside ethers.js creates dependency overlap as both libraries serve similar purposes for Ethereum interaction. This could lead to:
- Increased bundle size
- Inconsistent implementations across the codebase
- Additional maintenance overhead
Consider standardizing on one library:
- If the new memo encoding functionality specifically requires web3.js features, consider migrating other ethers.js code to web3.js
- If not, consider implementing the memo encoding using ethers.js to maintain consistency
Would you like assistance in evaluating which library better suits your needs or help in refactoring the memo implementation to use ethers.js?
memo.js (7)
34-36: Simplify address validation withweb3.utils.isAddressAfter updating the import, you can directly use
isAddressfromweb3.utilswithout relying on external validators.🧰 Tools
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10-15: Sort keys in theOpCodeenum for readabilityReordering the keys in the
OpCodeenum alphabetically improves readability and adheres to style guidelines.Apply this diff:
const OpCode = Object.freeze({ + Call: 0b0010, Deposit: 0b0000, DepositAndCall: 0b0001, - Call: 0b0010, Invalid: 0b0011, });Ensure that reordering does not affect the intended behavior of your code.
🧰 Tools
🪛 GitHub Check: build
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17-21: Sort keys in theEncodingFormatenum for readabilitySimilarly, reordering the keys in the
EncodingFormatenum enhances readability.Apply this diff:
const EncodingFormat = Object.freeze({ EncodingFmtABI: 0b0000, - EncodingFmtCompactShort: 0b0001, - EncodingFmtCompactLong: 0b0010, + EncodingFmtCompactLong: 0b0010, + EncodingFmtCompactShort: 0b0001, });🧰 Tools
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[error] 20-20: Expected object keys to be in ascending order. 'EncodingFmtCompactLong' should be before 'EncodingFmtCompactShort'.
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52-53: Use consistent lowercase in hexadecimal valuesFor consistency, use lowercase letters in hexadecimal literals.
Apply this diff:
- headerBytes[1] = (0x00 << 4) | (header.encodingFmt & 0x0F); - headerBytes[2] = ((header.opCode & 0x0F) << 4) | 0x00; + headerBytes[1] = (0x00 << 4) | (header.encodingFmt & 0x0f); + headerBytes[2] = ((header.opCode & 0x0f) << 4) | 0x00;🧰 Tools
🪛 eslint
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117-117: Reorder exports inmodule.exportsfor consistencyOrganizing exported entities alphabetically improves maintainability.
Apply this diff:
-module.exports = { Header, FieldsV0, EncodingFormat, OpCode, EncodeToBytes }; +module.exports = { EncodeToBytes, EncodingFormat, FieldsV0, Header, OpCode };🧰 Tools
🪛 eslint
[error] 117-117: Expected object keys to be in ascending order. 'FieldsV0' should be before 'Header'.
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[error] 117-117: Expected object keys to be in ascending order. 'EncodingFormat' should be before 'FieldsV0'.
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[error] 117-117: Expected object keys to be in ascending order. 'EncodeToBytes' should be before 'OpCode'.
(sort-keys-fix/sort-keys-fix)
1-117: Fix formatting issues as per static analysisSeveral formatting inconsistencies were detected. Please run your code through a formatter like Prettier to adhere to style guidelines.
🧰 Tools
🪛 GitHub Check: build
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(sort-keys-fix/sort-keys-fix)
45-47: Enhance error messages inEncodeToBytesfunctionProviding specific error messages can aid in debugging and improve clarity.
Apply this diff:
- throw new Error("Header and fields are required"); + if (!header) { + throw new Error("Header is required"); + } + if (!fields) { + throw new Error("Fields are required"); + }🧰 Tools
🪛 eslint
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📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
📒 Files selected for processing (3)
memo.js(1 hunks)memo.test.js(1 hunks)package.json(2 hunks)
🧰 Additional context used
🪛 GitHub Check: build
memo.js
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memo.js
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memo.test.js
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🔇 Additional comments (3)
package.json (2)
108-108: Verify the impact of allowing minor version updates for ethers.
While allowing minor updates can bring bug fixes, it might also introduce subtle breaking changes. The current ethers v5.4.7 is stable and widely tested.
#!/bin/bash
# Check for known vulnerabilities in ethers v5.4.x versions
gh api graphql -f query='
{
securityVulnerabilities(first: 5, ecosystem: NPM, package: "ethers") {
nodes {
advisory {
summary
severity
publishedAt
}
vulnerableVersionRange
firstPatchedVersion {
identifier
}
}
}
}'
# List all v5.4.x versions to evaluate the update range
npm view ethers@"^5.4.7" version108-108: Verify compatibility between ethers.js and web3.js versions.
Since both libraries will be used together in the memo encoding implementation, we should verify their compatibility and any potential conflicts.
Also applies to: 119-119
✅ Verification successful
Let me gather more information about web3.js usage and version to properly verify the compatibility.
Based on the search results, I can see that both ethers.js v5.4.7 and web3.js v4.15.0 are used in the memo encoding implementation (memo.js). Let me verify their specific usage and compatibility:
After analyzing the code and library usage, I can now provide a definitive response about the compatibility:
The libraries are used independently and compatibly in the memo encoding implementation
The code shows clear separation of concerns where each library is used for distinct purposes:
- web3.js (v4.15.0) is used for basic utilities like
hexToBytesand address validation - ethers.js (v5.4.7) is used specifically for ABI encoding in the
encodeFieldsABIfunction
There are no overlapping functionalities or potential conflicts between the libraries as they handle different aspects of the implementation. The code is well-structured to use each library's strengths:
- web3-validator for address validation
- web3.utils for byte manipulation
- ethers.utils for ABI encoding
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for potential conflicts in import statements
rg -g '*.{js,ts}' -A 2 'import.*web3|import.*ethers'
# Look for files using both libraries together
rg -l 'web3.*ethers|ethers.*web3'
# Check if memo.js uses both libraries
rg -g 'memo.js' 'import.*web3|import.*ethers'
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#!/bin/bash
# Check web3.js version in package.json
rg '"web3":\s*"[^"]*"' package.json
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rg -g '*.{js,ts}' -C 3 'const.*[Ww]eb3|import.*[Ww]eb3'
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fd -g '*memo*.{js,ts}'
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#!/bin/bash
# Check the actual usage of both libraries in memo.js
cat memo.js
# Check if there are any known compatibility issues between these versions
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{
repository(owner: "web3", name: "web3.js") {
releases(first: 1, orderBy: {field: CREATED_AT, direction: DESC}) {
nodes {
tagName
description
}
}
}
}'
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memo.js (1)
77-79: Verify the ABI encoding types and order
Ensure that the types and corresponding values in the encodeFieldsABI function match and are in the correct order for ABI encoding.
Consider reviewing and testing the function to confirm correctness.
🧰 Tools
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| // Run the test cases | ||
| testMemoAbi(); | ||
| testMemoCompactShort(); | ||
| testMemoCompactLong(); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Implement proper test runner and reporting
Replace manual test execution with a proper test framework to get better error reporting, test filtering, and CI integration capabilities.
- Add test framework configuration:
// jest.config.js
module.exports = {
testEnvironment: 'node',
testMatch: ['**/*.test.js'],
verbose: true
};- Update package.json:
{
"scripts": {
+ "test": "jest",
+ "test:watch": "jest --watch"
},
"devDependencies": {
+ "jest": "^29.0.0"
}
}
memo.js
Outdated
| } | ||
|
|
||
| // Main Encoding Function | ||
| function EncodeToBytes(header, fields) { |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Use function expressions for consistency
For consistency with modern JavaScript practices and to adhere to code style guidelines, consider using function expressions or arrow functions instead of function declarations.
Apply this diff to update your functions:
-function EncodeToBytes(header, fields) {
+const EncodeToBytes = (header, fields) => {-function encodeFieldsABI(fields) {
+const encodeFieldsABI = (fields) => {-function encodeFieldsCompact(compactFmt, fields) {
+const encodeFieldsCompact = (compactFmt, fields) => {-function encodeDataCompact(compactFmt, data) {
+const encodeDataCompact = (compactFmt, data) => {Also applies to: 75-75, 83-83, 92-92
🧰 Tools
🪛 GitHub Check: build
[warning] 44-44:
Use const or class constructors instead of named functions
🪛 eslint
[error] 44-72: Expected a function expression.
(func-style)
memo.js
Outdated
| @@ -0,0 +1,117 @@ | |||
| const { Web3, eth } = require('web3'); | |||
There was a problem hiding this comment.
Correct the Web3 import statement
The eth property is not directly exported from 'web3'. Instead, you should instantiate Web3 and access eth via the instance if needed.
Apply this diff to fix the import:
-const { Web3, eth } = require('web3');
+const Web3 = require('web3');📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const { Web3, eth } = require('web3'); | |
| const Web3 = require('web3'); |
🧰 Tools
🪛 GitHub Check: build
[failure] 1-1:
Replace 'web3' with "web3"
🪛 eslint
[error] 1-1: Replace 'web3' with "web3"
(prettier/prettier)
|
fadeev
changed the title
There was a problem hiding this comment.
Actionable comments posted: 4
🧹 Outside diff range and nitpick comments (12)
test/memo.test.ts (1)
13-16: Consider adding address validation and edge cases.While the test setup is good, consider enhancing it with:
- Address validation helpers to ensure valid Ethereum and Bitcoin addresses
- Additional test cases for invalid addresses and empty/malformed payloads
Example validation helper:
const isValidEthAddress = (address: string): boolean => web3.utils.isAddress(address); // Add before test execution expect(isValidEthAddress(receiver)).toBe(true);memo.test.js (4)
1-10: Modernize imports and setupThe code uses older Node.js style with
varand manual Web3 initialization. Consider modernizing:
- Use ES modules instead of CommonJS
- Use
constinstead ofvar- Move Web3 initialization to a test setup file
-var assert = require("assert"); +import { strict as assert } from 'assert'; -const { - Header, - FieldsV0, - EncodingFormat, - OpCode, - EncodeToBytes, -} = require("./memo"); -const { Web3 } = require("web3"); -const web3 = new Web3(); +import { Header, FieldsV0, EncodingFormat, OpCode, EncodeToBytes } from './memo'; +import { web3 } from './test-setup';
12-15: Move test data to a separate fixture fileTest data should be moved to a separate fixture file to improve reusability and maintainability.
+// test-fixtures.js +export const testData = { + receiver: "0xEA9808f0Ac504d1F521B5BbdfC33e6f1953757a7", + payload: new TextEncoder().encode("a payload"), + revertAddress: "tb1q6rufg6myrxurdn0h57d2qhtm9zfmjw2mzcm05q" +};
33-41: Improve readability of expected hex valuesThe concatenated hex strings are hard to read and maintain. Consider using a template function to construct the expected values.
const createExpectedHex = ({ format, receiver, payload, revertAddress }) => { const parts = { header: format === 'ABI' ? '5a001007' : format === 'CompactShort' ? '5a011007' : '5a021007', receiver: format === 'ABI' ? '000000000000000000000000' + receiver.slice(2) : receiver.slice(2), // ... other parts }; return Object.values(parts).join(''); };Also applies to: 69-73, 101-105
44-48: Enhance error messages with actual vs expected comparisonThe current error messages don't show the difference between actual and expected values, making it harder to debug test failures.
-assert.strictEqual( - encodedMemoHex, - expectedHex, - "ABI encoding failed: encoded bytes do not match expected" -); +expect(encodedMemoHex).toEqual(expectedHex);Also applies to: 76-80, 108-112
packages/client/src/encodeToBytes.ts (7)
99-100: Useethers.utils.toUtf8Bytesfor string encoding.Instead of using the built-in
TextEncoder, useethers.utils.toUtf8Bytesfor better compatibility and consistency.Apply this diff:
- new TextEncoder().encode(fields.revertAddress) + ethers.utils.toUtf8Bytes(fields.revertAddress)
58-59: Simplify redundant bitwise operations in header construction.The shifts and bitwise OR with zero are redundant and can be simplified for clarity.
Apply this diff:
- headerBytes[1] = (0x00 << 4) | (header.encodingFmt & 0x0f); - headerBytes[2] = ((header.opCode & 0x0f) << 4) | 0x00; + headerBytes[1] = header.encodingFmt & 0x0f; + headerBytes[2] = (header.opCode & 0x0f) << 4;If the shifts are placeholders for future use, consider adding comments to explain their purpose.
119-120: Improve error messages for clarity.The error message can be made clearer by specifying the actual data length and the limit.
Apply this diff:
- "Data length exceeds 255 bytes for EncodingFmtCompactShort" + `Data length (${dataLen} bytes) exceeds 255 bytes for EncodingFmtCompactShort`Repeat similar changes for other error messages to provide more context.
40-42: ValidaterevertAddressif required.If
revertAddressis expected to be a valid address, consider adding validation similar toreceiver.Add validation:
if (!ethers.utils.isAddress(revertAddress)) { throw new Error("Invalid revert address"); }This ensures that both addresses are valid before encoding.
50-53: Handle missing or invalid parameters more gracefully.Instead of checking for falsy values, consider using more specific validations to provide clearer error messages.
Update the parameter checks:
if (!(header instanceof Header)) { throw new Error("Invalid or missing Header object"); } if (!(fields instanceof FieldsV0)) { throw new Error("Invalid or missing FieldsV0 object"); }
137-137: Ensure buffer concatenation is efficient and safe.When concatenating buffers, consider using
Uint8Arraydirectly instead of converting toBufferobjects.Apply this diff:
- return Buffer.concat([encodedLength, data]); + const result = new Uint8Array(encodedLength.length + data.length); + result.set(encodedLength, 0); + result.set(data, encodedLength.length); + return result;This avoids unnecessary conversions between
BufferandUint8Array.
77-79: Simplify the combination of header and fields.Similar to the previous suggestion, streamline the concatenation to avoid conversions.
Apply this diff:
- return new Uint8Array( - Buffer.concat([Buffer.from(headerBytes), Buffer.from(encodedFields)]) - ); + const result = new Uint8Array(headerBytes.length + encodedFields.length); + result.set(headerBytes, 0); + result.set(encodedFields, headerBytes.length); + return result;
📜 Review details
Configuration used: .coderabbit.yaml
Review profile: CHILL
⛔ Files ignored due to path filters (17)
typechain-types/@openzeppelin/contracts/index.tsis excluded by!typechain-types/**typechain-types/@openzeppelin/contracts/token/ERC20/ERC20.tsis excluded by!typechain-types/**typechain-types/@openzeppelin/contracts/token/ERC20/IERC20.tsis excluded by!typechain-types/**typechain-types/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.tsis excluded by!typechain-types/**typechain-types/contracts/EthZetaMock.sol/ZetaEthMock.tsis excluded by!typechain-types/**typechain-types/contracts/TestZRC20.tsis excluded by!typechain-types/**typechain-types/contracts/shared/MockZRC20.tsis excluded by!typechain-types/**typechain-types/factories/@openzeppelin/contracts/index.tsis excluded by!typechain-types/**typechain-types/factories/@openzeppelin/contracts/token/ERC20/ERC20__factory.tsis excluded by!typechain-types/**typechain-types/factories/@openzeppelin/contracts/token/ERC20/IERC20__factory.tsis excluded by!typechain-types/**typechain-types/factories/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata__factory.tsis excluded by!typechain-types/**typechain-types/factories/contracts/EthZetaMock.sol/ZetaEthMock__factory.tsis excluded by!typechain-types/**typechain-types/factories/contracts/TestZRC20__factory.tsis excluded by!typechain-types/**typechain-types/factories/contracts/shared/MockZRC20__factory.tsis excluded by!typechain-types/**typechain-types/hardhat.d.tsis excluded by!typechain-types/**typechain-types/index.tsis excluded by!typechain-types/**yarn.lockis excluded by!**/yarn.lock,!**/*.lock
📒 Files selected for processing (7)
.github/workflows/test.yaml(1 hunks)jest.config.ts(1 hunks)memo.test.js(1 hunks)package.json(5 hunks)packages/client/src/encodeToBytes.ts(1 hunks)packages/client/src/index.ts(1 hunks)test/memo.test.ts(1 hunks)
✅ Files skipped from review due to trivial changes (2)
- .github/workflows/test.yaml
- jest.config.ts
🚧 Files skipped from review as they are similar to previous changes (1)
- package.json
🧰 Additional context used
🪛 eslint
packages/client/src/index.ts
[error] 1-23: Run autofix to sort these exports!
(simple-import-sort/exports)
🔇 Additional comments (7)
test/memo.test.ts (2)
1-11: LGTM! Clean import structure and Web3 setup.
The imports are well-organized and the Web3 instance is appropriately initialized for utility usage.
1-75: Verify alignment with bitSmiley requirements.
The tests implement Bitcoin memo encoding as required, but we should verify:
- If the encoding formats match bitSmiley's requirements
- If the revertAddress option is properly tested for bitSmiley's use case
✅ Verification successful
Let me analyze the actual implementation and requirements before making a final determination about the test coverage.
Tests correctly implement memo encoding requirements
The test coverage is comprehensive and correctly aligns with the implementation:
- All three encoding formats (ABI, CompactShort, CompactLong) are properly tested
- The revertAddress field is correctly handled in all test cases
- Test cases match the actual implementation in
encodeToBytes.ts - The revertAddress usage aligns with the type definitions in
types.ts
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for bitSmiley-specific requirements or configurations
rg -l 'bitSmiley|revertAddress' --type ts
# Check for any existing memo encoding implementations
ast-grep --pattern 'function encodeToBytes($$$)'
Length of output: 636
Script:
#!/bin/bash
# Check the implementation of encodeToBytes and its usage
cat packages/client/src/encodeToBytes.ts
# Look for any specific requirements or configurations
rg "revertAddress" -A 5 -B 5 packages/client/src/types.ts
Length of output: 4119
memo.test.js (2)
18-51: Convert to Jest test suite with parameterized tests
The three test functions share similar structure and could be refactored using Jest's parameterized tests for better maintainability.
Also applies to: 54-83, 86-115
117-120: Add test coverage for edge cases and validation
The current test suite only covers happy path scenarios. Additional test cases are needed for:
- Payload length limits (255 bytes for CompactShort, 65535 bytes for CompactLong)
- Invalid addresses
- Empty/null payloads and revert addresses
- Error conditions (missing header/fields)
packages/client/src/encodeToBytes.ts (3)
131-131: 🛠️ Refactor suggestion
Confirm endianness in writeUInt16LE.
When writing the length of data, ensure that the endianness matches the expected format in your protocol.
Is writeUInt16LE the correct method for encoding the length in little-endian format? If big-endian is required, use writeUInt16BE instead.
Apply this diff if big-endian format is needed:
- encodedLength.writeUInt16LE(dataLen);
+ encodedLength.writeUInt16BE(dataLen);40-42: 🛠️ Refactor suggestion
Use ethers utility for address validation.
Since you're already using ethers, consider using ethers.utils.isAddress for address validation to maintain consistency.
Apply this diff:
- if (!isAddress(receiver)) {
+ if (!ethers.utils.isAddress(receiver)) {Likely invalid or redundant comment.
84-87: Verify the alignment of types and values in ABI encoding.
Ensure that the types array aligns correctly with the values provided, especially since fields.payload is a Uint8Array.
Run the following script to check the types:
Ensure that fields.payload is accepted in the ABI encoding as a bytes type.
✅ Verification successful
Let me try to gather more information about the types by examining the code context.
Let me search for the type definition of FieldsV0 to understand the expected types.
Based on the code analysis, I can now provide the final response:
The ABI encoding types are correctly aligned with the field types
The FieldsV0 class shows that:
receiveris a string containing an Ethereum address (matchesaddresstype)payloadis aUint8Array(matchesbytestype, as ethers.js accepts Uint8Array for bytes encoding)revertAddressis a string (matchesstringtype)
Additionally, the test files demonstrate successful encoding with these types, confirming the compatibility.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that the types match the values in ABI encoding.
# Expected: types should correspond to the data types of values.
echo "Types: ['address', 'bytes', 'string']"
echo "Values types:"
echo "- Receiver: $(node -e "console.log(typeof '${fields.receiver}')")"
echo "- Payload: $(node -e "console.log('${fields.payload}' instanceof Uint8Array)")"
echo "- Revert Address: $(node -e "console.log(typeof '${fields.revertAddress}')")"
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# Search for the type definitions and usage of fields
rg -A 5 -B 5 "fields\." --type ts
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$$$
}'
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| compactFmt: EncodingFormat, | ||
| fields: FieldsV0 | ||
| ): Uint8Array => { | ||
| const encodedReceiver = Buffer.from(Web3.utils.hexToBytes(fields.receiver)); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Replace Web3.utils.hexToBytes with ethers.utils.arrayify.
To avoid importing Web3 and to keep the library usage consistent, use ethers.utils.arrayify to convert the receiver address to a byte array.
Apply this diff:
- const encodedReceiver = Buffer.from(Web3.utils.hexToBytes(fields.receiver));
+ const encodedReceiver = ethers.utils.arrayify(fields.receiver);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const encodedReceiver = Buffer.from(Web3.utils.hexToBytes(fields.receiver)); | |
| const encodedReceiver = ethers.utils.arrayify(fields.receiver); |
|
@andresaiello @zeta-chain/fullstack please, review. |
Added the Javascript files that showcase the Bitcoin memo encoding process.
This is a simplified implementation that enables the
revertAddressoption (bitSmileyneeds this option). @fadeev you can refine and formalize the code (my JS skills are limited) to ship the API in whatever style you deem appropriate. Thanks in advance!memo.jsto provide standard memo encoding functionEncodeToBytesmemo.test.jsto unit test the memo encoding. I used commandnode memo.test.jsto run the tests.Summary by CodeRabbit
New Features
Bug Fixes
Documentation
Chores