add evm provider #6
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WalkthroughThe pull request introduces support for Ethereum transactions in the Daydreams core library. A new dependency on the Changes
Sequence DiagramsequenceDiagram
participant User
participant ExecuteEvmTransaction
participant EthersProvider
participant EthersWallet
participant SmartContract
User->>ExecuteEvmTransaction: Submit EvmTransaction
ExecuteEvmTransaction->>EthersProvider: Initialize JSON-RPC Provider
ExecuteEvmTransaction->>EthersWallet: Create Wallet Instance
ExecuteEvmTransaction->>SmartContract: Create Contract Instance
ExecuteEvmTransaction->>SmartContract: Execute Contract Method
SmartContract-->>ExecuteEvmTransaction: Return Transaction Receipt
ExecuteEvmTransaction-->>User: Return Transaction Result
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Actionable comments posted: 4
🧹 Nitpick comments (1)
readme.md (1)
3-3: LGTM! Documentation update reflects new capabilities.The broader scope in the description accurately reflects the addition of EVM support alongside other chains.
Minor suggestion: Consider adding a hyphen to make it "on-chain" for better readability.
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[grammar] ~3-~3: Did you mean “are” or “were”?
Context: # Daydreams Daydreams is a generative agent library for playing ...(SENT_START_NNS_IS)
[uncategorized] ~3-~3: This expression is ususally spelled with a hyphen
Context: ...ary for playing anything onchain. It is chain agnostic and can be used to play anything onchai...(SPECIFIC_HYPHEN)
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📒 Files selected for processing (3)
packages/core/package.json(1 hunks)packages/core/src/core/providers.ts(2 hunks)readme.md(1 hunks)
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🪛 LanguageTool
readme.md
[grammar] ~3-~3: Did you mean “are” or “were”?
Context: # Daydreams Daydreams is a generative agent library for playing ...
(SENT_START_NNS_IS)
[uncategorized] ~3-~3: This expression is ususally spelled with a hyphen
Context: ...ary for playing anything onchain. It is chain agnostic and can be used to play anything onchai...
(SPECIFIC_HYPHEN)
🔇 Additional comments (2)
packages/core/src/core/providers.ts (1)
87-92: LGTM! Well-structured interface definition.The
EvmTransactioninterface properly extendsCoTTransactionand includes essential EVM-specific fields.packages/core/package.json (1)
21-21: Verify ethers.js version compatibility and security.The ethers.js v6.13.5 is a recent version, but let's verify it's free from known vulnerabilities.
Run this script to check for security advisories:
✅ Verification successful
✓ ethers.js v6.13.5 dependency verified
The dependency is secure, up-to-date, and correctly implemented using v6 API patterns in the codebase.
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#!/bin/bash # Check for security advisories in ethers package gh api graphql -f query=' { securityVulnerabilities(first: 5, ecosystem: NPM, package: "ethers") { nodes { advisory { summary severity publishedAt } vulnerableVersionRange firstPatchedVersion { identifier } } } }' # Check latest version npm view ethers versions --json | jq -r '.[-1]'Length of output: 395
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#!/bin/bash # Check for peer dependencies and package usage npm view [email protected] peerDependencies --json # Search for ethers imports/requires in the codebase rg -l "require\(['\"]ethers['\"]\)|from ['\"](ethers|@ethersproject)" --type js --type ts # Look for existing ethers version in other package.json files fd package.json --type f --exec grep -l "ethers" {}Length of output: 265
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#!/bin/bash # Check ethers usage in providers.ts cat packages/core/src/core/providers.tsLength of output: 3211
| // Initialize provider (customize based on your needs) | ||
| const provider = new ethers.JsonRpcProvider(process.env.EVM_RPC_URL); | ||
|
|
||
| // Initialize wallet/signer | ||
| const wallet = new ethers.Wallet(process.env.PRIVATE_KEY!, provider); |
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Add environment variable validation.
The code assumes environment variables will be present without validation.
Add validation before using environment variables:
- const provider = new ethers.JsonRpcProvider(process.env.EVM_RPC_URL);
- const wallet = new ethers.Wallet(process.env.PRIVATE_KEY!, provider);
+ const rpcUrl = process.env.EVM_RPC_URL;
+ const privateKey = process.env.PRIVATE_KEY;
+
+ if (!rpcUrl || !privateKey) {
+ throw new Error('Missing required environment variables: EVM_RPC_URL or PRIVATE_KEY');
+ }
+
+ const provider = new ethers.JsonRpcProvider(rpcUrl);
+ const wallet = new ethers.Wallet(privateKey, provider);📝 Committable suggestion
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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.
| // Initialize provider (customize based on your needs) | |
| const provider = new ethers.JsonRpcProvider(process.env.EVM_RPC_URL); | |
| // Initialize wallet/signer | |
| const wallet = new ethers.Wallet(process.env.PRIVATE_KEY!, provider); | |
| // Initialize provider (customize based on your needs) | |
| const rpcUrl = process.env.EVM_RPC_URL; | |
| const privateKey = process.env.PRIVATE_KEY; | |
| if (!rpcUrl || !privateKey) { | |
| throw new Error('Missing required environment variables: EVM_RPC_URL or PRIVATE_KEY'); | |
| } | |
| const provider = new ethers.JsonRpcProvider(rpcUrl); | |
| const wallet = new ethers.Wallet(privateKey, provider); |
| const txOptions = { | ||
| value: BigInt(transaction.value || "0"), | ||
| gasLimit: BigInt(transaction.gasLimit || "0"), | ||
| }; |
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Improve gas limit handling.
The current implementation might lead to transaction failures if gas limit is not properly set.
Consider these improvements:
- Add gas estimation
- Validate gas limit values
- Handle potential out-of-gas scenarios
- const txOptions = {
- value: BigInt(transaction.value || "0"),
- gasLimit: BigInt(transaction.gasLimit || "0"),
- };
+ const txOptions: ethers.ContractTransactionRequest = {
+ value: BigInt(transaction.value || "0"),
+ };
+
+ if (transaction.gasLimit) {
+ txOptions.gasLimit = BigInt(transaction.gasLimit);
+ } else {
+ // Estimate gas if not provided
+ try {
+ txOptions.gasLimit = await contract[transaction.method].estimateGas(
+ ...transaction.calldata,
+ { value: txOptions.value }
+ );
+ } catch (error) {
+ throw new Error(`Gas estimation failed: ${error instanceof Error ? error.message : 'Unknown error'}`);
+ }
+ }Committable suggestion skipped: line range outside the PR's diff.
| const tx = await contract[transaction.method]( | ||
| ...transaction.calldata, | ||
| txOptions | ||
| ); | ||
| const receipt = await tx.wait(); | ||
|
|
||
| return receipt; |
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🛠️ Refactor suggestion
Enhance transaction execution and receipt handling.
The current implementation lacks proper transaction monitoring and receipt validation.
Consider these improvements:
- Add transaction confirmation blocks
- Validate transaction receipt
- Handle revert reasons
- const tx = await contract[transaction.method](
- ...transaction.calldata,
- txOptions
- );
- const receipt = await tx.wait();
-
- return receipt;
+ try {
+ const tx = await contract[transaction.method](
+ ...transaction.calldata,
+ txOptions
+ );
+
+ // Wait for 2 confirmations
+ const receipt = await tx.wait(2);
+
+ if (!receipt.status) {
+ throw new Error('Transaction failed');
+ }
+
+ return receipt;
+ } catch (error: any) {
+ // Handle revert reasons
+ if (error.data) {
+ throw new Error(`Transaction reverted: ${error.data}`);
+ }
+ throw error;
+ }📝 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 tx = await contract[transaction.method]( | |
| ...transaction.calldata, | |
| txOptions | |
| ); | |
| const receipt = await tx.wait(); | |
| return receipt; | |
| try { | |
| const tx = await contract[transaction.method]( | |
| ...transaction.calldata, | |
| txOptions | |
| ); | |
| // Wait for 2 confirmations | |
| const receipt = await tx.wait(2); | |
| if (!receipt.status) { | |
| throw new Error('Transaction failed'); | |
| } | |
| return receipt; | |
| } catch (error: any) { | |
| // Handle revert reasons | |
| if (error.data) { | |
| throw new Error(`Transaction reverted: ${error.data}`); | |
| } | |
| throw error; | |
| } |
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Actionable comments posted: 1
♻️ Duplicate comments (3)
packages/core/src/core/providers.ts (3)
98-102:⚠️ Potential issueAdd environment variable validation.
The code assumes environment variables will be present without validation.
120-123:⚠️ Potential issueImprove gas limit handling.
The current implementation might lead to transaction failures if gas limit is not properly set.
126-132:⚠️ Potential issueEnhance transaction execution and receipt handling.
The current implementation lacks proper transaction monitoring and receipt validation.
🧹 Nitpick comments (1)
packages/core/src/core/providers.ts (1)
87-92: Consider making the network field more flexible.Instead of hardcoding "evm" as the only network type, consider using a union type to support potential future networks and maintain better type safety.
- network: "evm"; + network: "evm" | "arbitrum" | "optimism" | "polygon"; // Add other EVM-compatible networks as needed
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📒 Files selected for processing (1)
packages/core/src/core/providers.ts(2 hunks)
🔇 Additional comments (1)
packages/core/src/core/providers.ts (1)
3-4: LGTM! Required imports are correctly added.The imports for CoTTransaction type and ethers library are properly added to support the new EVM functionality.
| } catch (error) { | ||
| return error instanceof Error ? error : new Error("Unknown error occurred"); | ||
| } |
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🛠️ Refactor suggestion
Improve error handling specificity.
The current error handling loses valuable information by converting all errors to a generic message. Consider handling specific error types differently.
} catch (error) {
- return error instanceof Error ? error : new Error("Unknown error occurred");
+ if (error instanceof ethers.ContractTransactionExecutionError) {
+ return new Error(`Transaction execution failed: ${error.message}`);
+ } else if (error instanceof ethers.ContractTransactionRevertedError) {
+ return new Error(`Transaction reverted: ${error.message}`);
+ } else if (error instanceof ethers.ProviderError) {
+ return new Error(`Provider error: ${error.message}`);
+ } else {
+ return error instanceof Error ? error : new Error("Unknown error occurred");
+ }📝 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.
| } catch (error) { | |
| return error instanceof Error ? error : new Error("Unknown error occurred"); | |
| } | |
| } catch (error) { | |
| if (error instanceof ethers.ContractTransactionExecutionError) { | |
| return new Error(`Transaction execution failed: ${error.message}`); | |
| } else if (error instanceof ethers.ContractTransactionRevertedError) { | |
| return new Error(`Transaction reverted: ${error.message}`); | |
| } else if (error instanceof ethers.ProviderError) { | |
| return new Error(`Provider error: ${error.message}`); | |
| } else { | |
| return error instanceof Error ? error : new Error("Unknown error occurred"); | |
| } | |
| } |
Adds basic EVM provider
(open to contributions)
Todo:
Summary by CodeRabbit
New Features
etherslibraryDependencies
etherslibrary version 6.13.5Documentation