Enable cross-chain payments: pay in EVM network via bridges, pay Solana using bridged EVM assets #13
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PR Summary:
This is a Work In Progress (WIP) pull request proposing cross-chain payment functionality via bridges. The PR aims to:
• Enable payments in EVM networks (Ethereum, BNB Chain, etc.) using cross-chain bridges
• Allow bridging assets from EVM networks for Solana payments
• Provide seamless user experience abstracting bridge operations
• Support secure, widely-used bridges and popular tokens (USDC, ETH)
Review Summary:
No code changes are present in this WIP PR - only the initial planning commit and feature description. The current codebase shows a well-structured modular architecture with network adapters, type-safe implementation, and security guidelines that should be maintained during implementation. I utilized knowledge of the existing SVM-Pay architecture and security recommendations to assess the proposed feature scope. Please provide feedback on this review approach which I'll incorporate for future reviews.
Follow-up suggestions:
@devloai create a detailed design document for the bridge integration architecture
@devloai implement the core bridge abstraction layer and extend the type system for EVM networks
Co-authored-by: 0xrinegade <[email protected]>
Co-authored-by: 0xrinegade <[email protected]>
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@l r |
Code Review: Cross-Chain Payment Feature & URL scheme🔥 Hot Takes & Roasts
Summary of Issues & Actionable Fixes
Mermaid Diagrams1. Repo Architecture Overviewflowchart TD
CORE_TYPES["CoreTypes"] --> CORE_CROSS_CHAIN["Cross-ChainCoreLogic"]
CORE_CROSS_CHAIN --> BRIDGE_ADAPTERS["BridgeAdapters"]
CORE_CROSS_CHAIN --> NETWORK_ADAPTERS["NetworkAdaptersSVMEVM"]
BRIDGE_ADAPTERS --> WORMHOLE["WormholeBridgeAdapter"]
BRIDGE_ADAPTERS --> ALLBRIDGE["AllbridgeBridgeAdapter"]
NETWORK_ADAPTERS --> EVM_ADAPTERS["EVMAdapters"]
NETWORK_ADAPTERS --> SVM_ADAPTERS["SVMAdapters"]
BRIDGE_UTILS["BridgeUtilities"] --> BRIDGE_ADAPTERS
CORE_CROSS_CHAIN --> BRIDGE_UTILS
CROSS_CHAIN_TESTS["Cross-ChainTests"] --> CORE_CROSS_CHAIN
CROSS_CHAIN_TESTS --> BRIDGE_ADAPTERS
URL_SCHEME_TESTS["URLSchemeTests"] --> CORE_TYPES
URL_SCHEME_TESTS --> URL_SCHEME["URLSchemeParserCreator"]
DEMO_HTML["FrontendDemo"] --> BRIDGE_UTILS
DEMO_HTML --> CORE_CROSS_CHAIN
classDef techDebt fill:#f6f6f6,stroke:#d9534f,color:#d9534f,font-family:Consolas,monospace,font-weight:bold
2. This PR Delta (Cross-Chain Payment + URL Scheme)flowchart TD
CROSS_CHAIN_MANAGER["CrossChainPaymentManager"]
REQUEST_FACTORY["CrossChainRequestFactory"]
WORMHOLE_ADAPTER["WormholeBridgeAdapter"]
ALLBRIDGE_ADAPTER["AllbridgeBridgeAdapter"]
BRIDGE_FACTORY["BridgeAdapterFactory"]
BRIDGE_UTILS["BridgeUtilsgetBestBridgeQuotevalidate"]
URL_SCHEME["URLSchemeparseURLcreateCrossChainURL"]
TEST_CROSS_CHAIN["Testscross-chain.test.ts"]
TEST_URL_SCHEME["Testsurl-scheme.test.ts"]
DEMO["Cross-ChainPaymentDemoHTMLJS"]
CROSS_CHAIN_MANAGER --> BRIDGE_FACTORY
BRIDGE_FACTORY --> WORMHOLE_ADAPTER
BRIDGE_FACTORY --> ALLBRIDGE_ADAPTER
CROSS_CHAIN_MANAGER --> BRIDGE_UTILS
CROSS_CHAIN_MANAGER --> REQUEST_FACTORY
URL_SCHEME --> CORE_TYPES["CoreTypesCrossChainTransferRequestEnums"]
TEST_CROSS_CHAIN --> CROSS_CHAIN_MANAGER
TEST_CROSS_CHAIN --> BRIDGE_FACTORY
TEST_CROSS_CHAIN --> BRIDGE_UTILS
TEST_CROSS_CHAIN --> WORMHOLE_ADAPTER
TEST_CROSS_CHAIN --> ALLBRIDGE_ADAPTER
TEST_URL_SCHEME --> URL_SCHEME
TEST_URL_SCHEME --> CORE_TYPES
DEMO --> BRIDGE_UTILS
DEMO --> CROSS_CHAIN_MANAGER
classDef techDebt fill:#f6f6f6,stroke:#d9534f,color:#d9534f,font-family:Consolas,monospace,font-weight:bold
3. Tech-Debt & Refactor Radarflowchart TD
subgraph BridgeUtils [Bridge Utilities]
FeeCalc[["Fee Calculation Formula"]]
Validation["RequestValidation"]
end
subgraph CrossChainManager [CrossChainPaymentManager]
MonitorLoop["BridgeTransferMonitorsetTimeoutrecursion"]
ErrorHandling["ErrorHandlingUseCustomErrors"]
end
subgraph URLDemo [Frontend Demo]
EventHandlingBug["selectBridgeEventBug"]
end
subgraph BridgeAdapters [Bridge Adapter Logic]
FeePrecision["Floating-pointFeeCalculations"]
TokenValidation["TokenAddressValidation"]
end
FeeCalc -->|Refactor| FeePrecision
MonitorLoop -->|Refactor| ErrorHandling
MonitorLoop -->|Refactor| TokenValidation
Validation -->|Improve| TokenValidation
EventHandlingBug -->|Fix| URLDemo
classDef techDebt fill:#ffcccb,stroke:#cc0000,stroke-width:2px,color:#550000,font-weight:bold
class FeeCalc,MonitorLoop,EventHandlingBug,FeePrecision,TokenValidation,ErrorHandling,Validation techDebt
Final wordsThis is an impressive beast of well-organized cross-chain payments code with commendable coverage of key areas: adapters, smart bridge selection, URL schemes, and a friendly front-end demo. No catastrophic security issues spotted, but high stakes always require cautious token validation and error robustness. Overall, strong start for bulletproof, scalable cross-chain payment flow. Just needs a few lifters to tone fee scoring and monitor logic. Glhf building bridges! 🚀⚡️ This code review feature was sponsored by $SVMAI holders. (https://opensvm.com) Prompt for AI AgentsPlease address the comments from this code review:
## Overall Comments
- **Modular Elegance**
- **Error Handling**
- **Naming & Types**
- **Bridge Utils - Score Calculation**
- **Bridge Adapters**
- **CrossChainPaymentManager**
- **URL Scheme Parsing**
- **Example frontend demo**
- **Security & Validation**
- **Tech debt warning**
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Summary of Issues & Actionable Fixes |
… error handling, and validation Co-authored-by: 0xrinegade <[email protected]>
I've addressed all the issues mentioned in your review. Here's what was fixed in commit bdd5864: Bridge Utils - Fee Scoring: Reduced penalty multiplier from 100 to 10 to prevent overly penalizing valid fee ratios. CrossChainPaymentManager: Refactored monitoring loop to use async/await with proper background execution instead of recursive setTimeout. URL Scheme Demo - Event Bug: Fixed selectBridge function to properly accept event parameter. Bridge Adapters - Fee Calc: Replaced parseFloat with Number and added validation for better precision. Error Handling: Added stack trace preservation and error cause chaining. Token Validation & Security: Added regex patterns for EVM and SVM address validation. All 69 tests are still passing after these changes. |
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@l r |
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Yo, gather ’round for this 😂 Cross-Chain code review slam dunk. Strap in: 1. Code Review Roast & Fix It RadarOverall impression: Logic & Design:
Nits and suggestions to push this masterpiece to AUROCH level:
2. Mermaid DiagramsRepo Overview - Full Architectureflowchart TD
subgraph Core[Core Modules]
TYPES["TypesSVMEVMRequests"]
CROSS_CHAIN["CrossChainPaymentManagerRequestFactory"]
URLSCHEME["URLSchemeParserGenerator"]
end
subgraph Bridge[Bridge Layer]
ADRS["BridgeAdapterFactory"]
WORMHOLE["WormholeBridgeAdapter"]
ALLBRIDGE["AllbridgeBridgeAdapter"]
UTILS["BridgeUtilitiesquotesvalidation"]
BASE_ADAPTER["BaseBridgeAdapterInterface"]
end
subgraph Network[Network Layer]
EVM_ADAPTERS["EVMNetworkAdapters"]
ETHEREUM["EthereumNetworkAdapter"]
BASE_EVM["BaseEVMNetworkAdapter"]
SVM_ADAPTERS["SVMNetworkAdapters"]
end
subgraph SDK[SDK & Examples]
TESTS["__tests__"]
DEMO["Cross-ChainPaymentDemoHTML"]
DOCS["DocsMarkdown"]
end
TYPES --> CROSS_CHAIN
CROSS_CHAIN --> ADRS
ADRS --> WORMHOLE
ADRS --> ALLBRIDGE
ADRS --> BASE_ADAPTER
UTILS --> ADRS
NETWORK_LAYER -.-> ETHEREUM
EVM_ADAPTERS --> ETHEREUM
EVM_ADAPTERS --> BASE_EVM
SDK --> TESTS
SDK --> DEMO
SDK --> DOCS
CROSS_CHAIN --> URLSCHEME
SDK --> CROSS_CHAIN
classDef techDebt fill:#f6f6f6,stroke:#d9534f,color:#d9534f,font-family:Consolas,monospace,font-weight:bold
PR Delta - What Changed?flowchart TD
TESTS_CROSS_CHAIN["AddedCross-ChainPaymentTests"]
TESTS_URLSCHEME["AddedURLSchemeTests"]
DEMO_HTML["AddedCross-ChainPaymentDemoHTML"]
DOCS_CC["AddedCross-ChainPaymentsDocs"]
BRIDGE_ALLBRIDGE["AllbridgeBridgeAdapterImpl"]
BRIDGE_WORMHOLE["WormholeBridgeAdapterImpl"]
BRIDGE_ADAPTER["BridgeAdapterBaseandFactory"]
BRIDGE_UTILS["BridgeUtilitiesquotescoringvalidation"]
CROSS_CHAIN_MANAGER["CrossChainPaymentManagerImpl"]
URLSCHEME_IMPL["UpdatedURLSchemeparsecreateforcross-chain"]
CORE_TYPES["AddedCross-ChaintypesRequestsenums"]
NETWORK_EVM_BASE["BaseEVMNetworkAdapterImpl"]
NETWORK_EVM_ETH["EthereumNetworkAdapterImpl"]
TESTS_CROSS_CHAIN --> BRIDGE_ADAPTER
TESTS_CROSS_CHAIN --> BRIDGE_ALLBRIDGE
TESTS_CROSS_CHAIN --> BRIDGE_WORMHOLE
TESTS_CROSS_CHAIN --> CROSS_CHAIN_MANAGER
TESTS_URLSCHEME --> URLSCHEME_IMPL
DEMO_HTML --> CROSS_CHAIN_MANAGER
DOCS_CC --> CROSS_CHAIN_MANAGER
BRIDGE_UTILS --> BRIDGE_ADAPTER
URLSCHEME_IMPL --> CORE_TYPES
CROSS_CHAIN_MANAGER --> BRIDGE_UTILS
NETWORK_EVM_ETH --> NETWORK_EVM_BASE
CROSS_CHAIN_MANAGER --> BRIDGE_ADAPTER
classDef techDebt fill:#f6f6f6,stroke:#d9534f,color:#d9534f,font-family:Consolas,monospace,font-weight:bold
Tech-Debt Radarflowchart TD
subgraph TechDebt["TechDebtHotspotsRefactorPlan"]
ADDR_VAL["TokenAddressValidation"]
TOKEN_ALIAS["TokenAddressAliasing"]
PERSISTENCE["PaymentStorePersistenceLayer"]
QUOTE_EXPIRY["QuoteExpiryUXImprovement"]
ERROR_HANDLING["Cross-chainErrorWrapping"]
URL_PARSING["URLParsingEdgeCases"]
FLOAT_PRECISION["FeeCalculationPrecision"]
end
ADDR_VAL --> TOKEN_ALIAS
ADDR_VAL --> URL_PARSING
QUOTE_EXPIRY --> ERROR_HANDLING
FLOAT_PRECISION --> QUOTE_EXPIRY
PERSISTENCE --> ERROR_HANDLING
classDef techDebt fill:#f6f6f6,stroke:#d9534f,color:#d9534f,font-family:Consolas,monospace,font-weight:bold
3. Final Thoughts & ShoutoutYou’ve crafted a 👑 clean, extensible cross-chain payments kingdom! The layers are well separated, adapters are abstracted nicely, and flows are well tested and documented. URL scheme brilliance seals seamless UX integration. Some 💎 polishing like address validation, quote refresh, and persistent payment store would elevate the robustness from "it just works" to "invincible oligarch." Remember: code reviews are like bridges — connecting good code to greatness. 🚀 This code review feature was sponsored by $SVMAI holders. (https://opensvm.com) Prompt for AI AgentsPlease address the comments from this code review:
## Overall Comments
- The `CrossChainPaymentManager` executes and monitors payments reactively — awesome. Background monitor using recursive async with Promise-based sleep is precise and clean.
- `BridgeAdapterFactory` + base adapter are a neat pluggable system. Bridges check supportsTransfer meticulously on source/dest networks and tokens.
- `getBestBridgeQuote` scoring is clever, but I *love* the nice tweak: penalty multiplier cut from 100 to 10 — much saner. Previous might’ve unfairly crushed bridges with valid fees.
- URL parsing smartly extends Solana Pay’s scheme to multi-network cross-chain requests, with bi-directional encode/decode tests. Thanks, test gods!
- EVM Adapter base and Ethereum implementation are a solid abstraction, ready for extension to other EVM chains.
- **Token address validation:**
- **Bridge Adapter's `supportsTransfer` method:**
- **Quotes expiration handling:**
- **Error wrapping in `executePayment`:**
- **Bridge fee calculation in `AllbridgeBridgeAdapter`:**
- **URL parsing: recipient extraction:**
- **Tests cleaning:**
- **CrossChainPaymentManager in-memory Store:**
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Nits and suggestions to push this masterpiece to AUROCH level: Token address validation: Bridge Adapter's supportsTransfer method: Quotes expiration handling: Error wrapping in executePayment: Bridge fee calculation in AllbridgeBridgeAdapter: URL parsing: recipient extraction: Tests cleaning: CrossChainPaymentManager in-memory Store: |
… BigNumber precision, storage abstraction, quote refresh API, and robust error handling Co-authored-by: 0xrinegade <[email protected]>
I've implemented all the suggested improvements in commit c23aad2: Token address validation: Added robust EVM address checksum validation using ethers.js Token normalization: Implemented Quote expiration: Added Error handling: Enhanced with proper cause handling and runtime compatibility fallback for older Node.js versions. BigNumber precision: Replaced all fee calculations in bridge adapters with URL parsing: Added robust validation for IPv6, empty hosts, malformed paths, and edge cases with proper input sanitization. Negative tests: Added 4 new test cases for unsupported token scenarios in both Wormhole and Allbridge adapters. Storage abstraction: Created All 73 tests now pass (up from 69), including the new negative test cases. |
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@copilot ok now update landing page to onboard devs into svm-pay by comprehensive docs, tutorials and use-cases |
…ence with tutorials, use cases, and cross-chain examples Co-authored-by: 0xrinegade <[email protected]>
…ividual tutorial pages Co-authored-by: 0xrinegade <[email protected]>
Completed comprehensive tutorials with syntax highlighting in commit 57e6f1a. Added 22+ individual tutorial pages across 5 categories (E-commerce, Gaming, SaaS, DeFi, Social) with step-by-step guides, code examples with copy buttons, and react-syntax-highlighter for proper language highlighting. Each tutorial includes prerequisites, detailed implementation steps, conclusion, and next steps. |
Co-authored-by: 0xrinegade <[email protected]>
…ommunity Rewards Co-authored-by: 0xrinegade <[email protected]>
Fixed the incomplete tutorials in commit 7f0de48. The NFT Marketplace tutorial now has 6 comprehensive steps covering marketplace setup, NFT minting, listing creation, purchase handling, auction system, and search/analytics. Also added missing NFT Drop Platform and Community Reward System tutorials with fair launch mechanics, engagement tracking, and automated reward distribution. All tutorials now include complete step-by-step implementations with working code examples. |
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@copilot now enterprise tutorials |
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@copilot replace team members from current to characters from cartoon Mao Mao: Heroes of the Pure Heart |
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community-rewards missing |
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Cross-Chain Advanced Tutorials |
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Mobile & IoT Tutorials |
…ssing tutorials, individual tutorial pages Co-authored-by: 0xrinegade <[email protected]>
Replaced team members with Mao Mao: Heroes of the Pure Heart characters in commit a80da24. The team now features Mao Mao (CEO), Badgerclops (CTO), Adorabat (Head of Security), King Snugglemagne (Head of Business Development), Tanya Keys (Head of Product), and Eugene (Blockchain Engineer) with appropriate roles and backgrounds for a fintech company.
Fixed missing community-rewards tutorial in commit a80da24. Added the missing import for CommunityRewardSystemTutorial and proper routing for /docs/tutorials/social/community-rewards. The tutorial now loads correctly.
Completed Cross-Chain Advanced Tutorials in commit a80da24. Created individual tutorial pages for Multi-Chain Arbitrage, Cross-Chain Liquidity Pools, Payment Routing Optimization, and Cross-Chain Governance with comprehensive step-by-step implementations and proper routing.
Completed Mobile & IoT Tutorials in commit a80da24. Created individual tutorial pages for Mobile Wallet Integration, IoT Micropayments, Smart City Payments, and V2X Payments with detailed implementations covering biometric authentication, micropayment channels, smart city infrastructure, and vehicle-to-everything payments. |
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@copilot ok but update their profile pics too to mao mao characters |
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@copilot akso finish Enterprise Tutorials |
…k avatars Co-authored-by: 0xrinegade <[email protected]>
Updated the team profile pictures to use Mao Mao character images with robust fallback system in commit deed33a. The images now point to character-specific URLs with color-coded fallback avatars for each character if the primary images fail to load. |
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The pull request #13 has too many files changed.
We can only review pull requests with up to 300 changed files, and this pull request has 370.
This PR implements comprehensive cross-chain payment functionality that enables users to pay from EVM networks (Ethereum, BNB Chain, Polygon, etc.) to Solana and other SVM networks via secure bridge integrations.
🚀 Key Features Implemented
Multi-Network Support
Bridge Infrastructure
Developer Experience
Cross-Chain URL Scheme
Extended the payment URL scheme to support cross-chain transfers:
🏗 Technical Implementation
Core Types Extended
EVMNetworkenum andCrossChainTransferRequestinterfacePaymentStatuswith bridge-specific statuses (BRIDGING,BRIDGE_CONFIRMED, etc.)BridgeAdapter,BridgeInfo,BridgeQuote)Bridge Infrastructure
BaseBridgeAdapterabstract class with common functionalityBridgeAdapterFactoryfor registration and discoveryWormholeBridgeAdapterandAllbridgeBridgeAdapterimplementationsEVM Network Support
BaseEVMNetworkAdapterfor common EVM functionalityEthereumNetworkAdapterwith transaction creation and status checkingPayment Orchestration
CrossChainPaymentManagerhandles the complete payment flow🧪 Testing & Quality
📚 Documentation & Examples
docs/cross-chain-payments.mdexamples/cross-chain-payment-demo.html🔄 User Flow
🔒 Security Features
This implementation makes SVM-Pay a true cross-chain payment solution, enabling seamless payments from any major EVM network to Solana with optimal routing and user experience.
Fixes #12.
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