[marc0olo]

Summary

• icp.yaml: @dfinity/motoko@v5.0.0 backend, @dfinity/asset-canister@v2.2.1 frontend; pre-built evm_rpc canister at v2.8.0 with nodesInSubnet = 28; environments block with local (deploys all three canisters) and ic (deploys only backend + frontend, injects PUBLIC_CANISTER_ID:evm_rpc = 7hfb6-caaaa-aaaar-qadga-cai)
• Deleted: dfx.json, BUILD.md, .devcontainer/ (dfx artifacts)
• backend/EvmRpcApi.mo (new): inline actor type for the EVM RPC canister following the basic_bitcoin / BitcoinApi.mo pattern — no dfx canister: import, no moc flags; principal resolved at runtime via Runtime.envVar<system>("PUBLIC_CANISTER_ID:evm_rpc"); full type definitions for eth_getBlockByNumber with a link to the complete EVM RPC Candid interface
• backend/app.mo: thin wrapper over EvmRpcApi.getBlock; get_evm_block returns { #Ok : Block; #Err : Text } instead of trapping; no persistent keyword (redundant with --default-persistent-actors)
• backend/backend.did (new): generated via mops generate candid backend; committed because the frontend consumes it via @icp-sdk/bindgen
• Dropped signing functions: get_ecdsa_public_key, get_schnorr_public_key, sign_message_with_ecdsa, sign_message_with_schnorr — isolated primitives with no EVM context; refer to basic_ethereum for the full signing + submission flow
• mops.toml: moc = "1.11.0", core = "2.5.0" (dropped sha2, base16); --default-persistent-actors + warning flags; [canisters.backend] with main and candid pointing to the committed .did
• Frontend: rewrote vite.config.js and added actor.js to icp-cli only (no dfx fallback); removed ECDSASigning and SchnorrSigning components; Block.jsx handles the Result variant and requires a valid block number before enabling the fetch button; upgraded to @icp-sdk/bindgen for TypeScript binding generation
• test.sh: fetches Ethereum mainnet block 1 and asserts its deterministic hash and miner address
• CI workflow: added motoko-evm_block_explorer job using ghcr.io/dfinity/icp-dev-env-motoko:1.0.1; also added motoko/evm_block_explorer/** to the PR path trigger
• Root .gitignore: added **/src/bindings/ to globally ignore bindgen output (mirrors the existing **/src/declarations/ for dfx)

Test plan

• icp network start -d && icp deploy && bash test.sh passes locally
• Frontend builds and block fetch works: npm run dev --prefix frontend
• icp deploy -e ic deploys only backend + frontend on ICP mainnet

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Migrates the Motoko evm_block_explorer example from dfx to icp-cli, aligning the project layout and tooling (icp.yaml, mops, Vite + bindgen, CI) with the repository’s current ICP example conventions.

Changes:

• Replaced dfx.json-based setup with icp.yaml (including local pre-built evm_rpc and an ic environment override) and updated the README/test flow to icp commands.
• Refactored the backend to a thin get_evm_block wrapper over a new backend/EvmRpcApi.mo module and committed backend/backend.did for frontend bindgen.
• Updated the frontend to use @icp-sdk/bindgen + safeGetCanisterEnv actor wiring and removed the signing UI components.

Reviewed changes

Copilot reviewed 19 out of 20 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
motoko/evm_block_explorer/icp.yaml	Defines backend/frontend recipes and local pre-built evm_rpc, plus ic environment injection for mainnet
motoko/evm_block_explorer/mops.toml	Updates toolchain/deps and sets canister main + candid path
motoko/evm_block_explorer/backend/app.mo	Simplifies backend API to get_evm_block returning a Result variant
motoko/evm_block_explorer/backend/EvmRpcApi.mo	New inline EVM RPC interface + getBlock helper (contains interface mismatches called out in review comments)
motoko/evm_block_explorer/backend/backend.did	Committed Candid interface for frontend binding generation
motoko/evm_block_explorer/frontend/vite.config.js	Switches to @icp-sdk/bindgen Vite plugin and icp-cli devserver cookie/proxy flow
motoko/evm_block_explorer/frontend/src/actor.js	New actor wiring via safeGetCanisterEnv + bindgen-generated actor
motoko/evm_block_explorer/frontend/src/Block.jsx	Updates UI to handle Result and validates block number input before enabling fetch
motoko/evm_block_explorer/frontend/src/main.jsx	Removes signing components from the UI
motoko/evm_block_explorer/frontend/package.json	Drops dfx generate step; adds @icp-sdk/bindgen
motoko/evm_block_explorer/test.sh	Adds an icp-cli test asserting deterministic Ethereum mainnet block 1 fields
motoko/evm_block_explorer/README.md	Updates instructions to icp-cli and documents candid regen + provider notes
motoko/evm_block_explorer/package.json	Removes workspace prebuild script
.github/workflows/evm_block_explorer.yml	Adds Motoko CI job + PR path trigger for the migrated example
.gitignore	Globally ignores bindgen output **/src/bindings/
motoko/evm_block_explorer/dfx.json	Deleted (dfx artifact)
motoko/evm_block_explorer/BUILD.md	Deleted (dfx/ICP Ninja artifact)
motoko/evm_block_explorer/.devcontainer/devcontainer.json	Deleted (per-example devcontainer artifact)
motoko/evm_block_explorer/frontend/src/ECDSASigning.jsx	Deleted (signing UI removed)
motoko/evm_block_explorer/frontend/src/SchnorrSigning.jsx	Deleted (signing UI removed)

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