Add example 04: Hardhat v3 + CCIP SDK with custom contracts#8
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Add example 04: Hardhat v3 + CCIP SDK with custom contracts#8
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…ceiver contracts - CCIPSender: peer registration, extraArgs passthrough, fee token deduplication, native fee refund, Ownable2Step, Pausable, ReentrancyGuard - CCIPReceiverExample: defensive try/catch, double-mapping allowlist, failed message tracking, token recovery with configurable amounts - Hardhat tasks: deploy-sender, deploy-receiver, send-via-sender, send-via-router, check-status with SDK gas estimation - Solhint with Chainlink's exact config and chainlink-solidity plugin - Upgrade ccip-sdk to 1.2.0 across all workspace packages
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SyedAsadKazmi
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Mar 15, 2026
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Summary
Custom CCIP sender/receiver contracts with 12 Hardhat tasks covering deployment, sending (via contract + direct router), allowlist management, status tracking, manual execution, and contract admin operations.
28 tests via
@chainlink/localCCIPLocalSimulator covering unit tests for both contracts and end-to-end integration (data-only, token-only, PTT, defensive try/catch, batch allowlist).test TT, arb messaging, PTT, manual exec, estimate receiver gas limit using SDK