feat(rust/go): 07-external-signer examples (V2-312, 3-4/15)#100
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Uses alloy 1.x (the same lib antd uses internally via evmlib). sol! macro declares IERC20 + IPaymentVault contract bindings inline; PrivateKeySigner + EthereumWallet + ProviderBuilder drive the on-chain signing. Validated end-to-end on dev2: File: 4 payments, data_map=9e7bcc30... Chunk: 1 payment, address=f97a9c7a... Adds alloy/hex as dev-dependencies (only pulled when building examples) and registers [[example]] 07-external-signer in Cargo.toml. Adds rust adapter's external_signer short-name to ant-dev dispatcher.
Uses go-ethereum's bind.NewBoundContract for ABI-driven contract calls. ERC-20 approve declared inline; IPaymentVault loaded from the bundled docs/abi/IPaymentVault.json via abi.JSON + findRepoRoot helper. Validated end-to-end on dev2: File: 4 payments, data_map=81f9e01b... Chunk: 1 payment, address=2967872e... Adds go-ethereum v1.17.3 + transitively-required upgrades (golang.org/x/*, grpc, protobuf) to go.mod/go.sum. Adds go adapter's external_signer short-name to ant-dev dispatcher.
Nic-dorman
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May 21, 2026
Cuts v0.8.0 atop v0.7.1. Substantial breaking-change roll-up of the put/get rename, the private-file PUT/GET gap close, and several minor surface cleanups -- bundled here so the v1.0 cut can ship stable on top. ## Breaking (antd daemon) - feat(antd)!: bind to 127.0.0.1 by default on REST and gRPC (#107). Previously bound 0.0.0.0; use --bind-rest / --bind-grpc to override. - chore: remove dead graph_entry surface from antd proto + 5 SDKs (#92). GraphService and its 4 RPCs are gone; REST mounts dropped. - chore: remove dir_upload_public / dir_download_public surface (#95). Use file_put_public on a directory path instead; the daemon recurses. - feat(antd)!: normalize put/get convention + close private-file PUT and GET gaps (#115). Method renames across proto + REST + SDKs: data_put_private -> data_put data_get_private -> data_get file_upload_public -> file_put_public file_download_public -> file_get_public New: file_put / file_get for the private file path (previously only the public variant existed). New typed results: DataPutResult, DataPutPublicResult, FilePutResult, FilePutPublicResult; PutResult is now annotated as chunk_put only. ## Additive - feat(antd): honor payment_mode on gRPC put/cost paths and REST cost endpoints (#114). Optional kwarg threaded through every put/cost signature; empty/omitted maps to "auto" so older clients keep working. - feat: external-signer public uploads + single-chunk prepare/finalize across 15 SDKs (#90). - docs+spec: openapi.yaml refreshed for the v1.0 surface, including POST /v1/chunks/prepare and /v1/chunks/finalize for single-chunk external-signer publish (#126). ## SDK fan-out (PaymentMode + put/get convention, all 15) #116 antd-go, #117 antd-py/ruby/elixir, #118 antd-rust, #119 antd-csharp, #120 antd-java, #121 antd-swift, #122 antd-dart, #123 antd-kotlin, #124 antd-cpp, #125 antd-js/php/zig/lua, #127 antd-mcp. ## SDK example + build fixes - fix(antd-go): make 03-files example self-contained and runnable (#91) - fix(examples): make 04-files runnable across cpp/rust/elixir/lua/php/ruby/zig (#93) - fix(examples): runnable dart 04_files + java Example03Files; add java Example03Chunks (#94) - feat: gRPC transport example for antd-py and antd-rust (#113) - feat(antd-py): 07_external_signer example + ant-dev dispatcher entry (#98) - feat(antd-js): 07-external-signer example + antd-py empty-payments fix (#99) - feat(rust/go): 07-external-signer examples (#100) - feat(antd-csharp): 07_external_signer example (#101) - feat(antd-java): 07_external_signer example (#102) - feat(antd-kotlin): 07_external_signer example (#103) - feat(antd-dart): 07_external_signer example (#104) - feat(antd-ruby): 07_external_signer example (#105) - feat(antd-php): 07_external_signer example (#106) - chore(antd-kotlin): drop stale GraphDescendant from local proto copy (#108) ## Docs / infra - docs: external-signer flow reference + ABI + python smoke test (#97) - docs: add SECURITY.md with threat model and disclosure policy (#109) - docs!: refresh per-SDK READMEs + llms-full.txt + openapi.yaml for v1.0 surface (#126) - ci: add Go lint + test + vuln scanning for antd-go (#112) - ci: extend antd-rust to sibling-repo parity (fmt + clippy + audit + doc) (#111) - ci: skip antd/openapi.yaml and llms-full.txt from triggering CI (#128) - chore(scripts): add full-stack + integration sweep helpers (#96) - fix(antd-rust): regenerate Cargo.lock to unbreak --locked CI (#110) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Two more SDK examples for V2-312. antd-rust is the compiled-language reference (alloy 1.x — same lib antd uses internally via evmlib); antd-go uses go-ethereum's bind.NewBoundContract for ABI-driven calls.
What this adds
antd-rust (3/15)
antd-rust/examples/07-external-signer.rs— sol! macro declares IERC20 + IPaymentVault contract bindings inlineantd-rust/Cargo.toml— addsalloy = { version = "1", features = ["full"] }+hexas dev-dependencies, registers [[example]] entryantd-go (4/15)
antd-go/examples/07-external-signer/main.go— uses bind.NewBoundContract for ABI-driven contract calls. ERC-20 approve inline, IPaymentVault loaded fromdocs/abi/IPaymentVault.jsonvia findRepoRoot helperantd-go/go.mod,antd-go/go.sum— adds go-ethereum v1.17.3, transitively upgrades golang.org/x/*, grpc, protobufValidation
Both validated end-to-end on dev2:
Patterns confirmed
Both examples use distinct content (
hello external signer from rust/from go) and handle the empty-payments short-circuit (mirrors antd-py + antd-js).Nonce handling: alloy's contract instance handles it implicitly; go-ethereum's bind.NewKeyedTransactorWithChainID + Transact does the same. No manual NonceManager needed for these libs (unlike ethers v6).
Remaining Group A SDKs (csharp/java/kotlin/dart/swift) and Groups B (ruby/php) and C (elixir/lua/zig/cpp) follow in subsequent PRs.
Closes 3-4/15 of V2-312.