feat(antd-csharp): 07_external_signer example (V2-312, 5/15)#101
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Adds Nethereum.Web3 5.0 as a NuGet dep of the Examples project. The
Example07_ExternalSigner method exercises the same two flows as the
other SDKs: file upload + single-chunk publish, both via the
prepare -> approve -> payForQuotes -> finalize sequence using anvil
deterministic account #0.
Validated end-to-end on dev2:
File: 4 payments, data_map=d9e3ff28...
Chunk: 1 payment, address=873e259a...
Nethereum 5.0 idiom notes captured in code comments:
- SendTransactionAndWaitForReceiptAsync hangs against anvil; using
SendTransactionAsync + TransactionReceiptService.PollForReceiptAsync
works reliably.
- params object[] would unpack the payments array into separate
function args; wrap as new object[] { payments } to keep it as one.
- Tuple ABI encoding requires a class with [Parameter] attributes;
anonymous types lack the attribute metadata Nethereum needs.
- Explicit gas limit avoids any auto-estimate edge cases.
Wires up program switch "7" + ant-dev dispatcher entry.
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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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Fifth SDK example for V2-312. Uses Nethereum.Web3 5.0.
What this adds
antd-csharp/Examples/Program.cs— addsExample07_ExternalSignermethod + dispatcher case"7", plus aDataPaymentDtoclass for tuple ABI encodingantd-csharp/Examples/Examples.csproj— addsNethereum.Web3 5.0.0NuGet refValidation
End-to-end against
ant dev start --enable-evmon dev2:Nethereum 5.0 idiom notes (for the other JVM/.NET-flavoured fan-out SDKs that may share patterns)
SendTransactionAndWaitForReceiptAsynchangs against anvil — switched toSendTransactionAsync+TransactionReceiptService.PollForReceiptAsyncwhich works reliably. 20-minute infinite wait was the symptom.params object[]unpacks arrays — passingpayments(an array) as the trailing arg gets unpacked into 4 separate function inputs. Wrap asnew object[] { payments }to keep it as one.[Parameter]attributes — anonymous types lack the attribute metadata Nethereum's reflection uses, so encoding fails with cryptic "Too many arguments" errors. Defined a smallDataPaymentDtoclass with[Parameter("address", "rewardsAddress", 1)]etc.Closes 5/15 of V2-312.