docs(relayer): document SUI_GRPC_URL gRPC write-path option

[reemsabawi-mystenlabs]

Description

Documents the optional SUI_GRPC_URL environment variable added in #355, which opts the relayer write path (Walrus register and certify, SEAL, and Enoki build) into gRPC instead of JSON-RPC ahead of the Sui JSON-RPC sunset on 2026-07-31. The option is off by default, so leaving it empty keeps the existing JSON-RPC behavior. The blob query and restore path continues to use JSON-RPC index methods and is not affected.

Covers the four operator-facing pages so the behavior is consistent across the docs:

• Environment Variables reference (reference/environment-variables.md) — new SUI_GRPC_URL row in the self-hosted relayer table plus a note (BEDU-816).
• Configuration reference (reference/configuration.md) — a "Relayer configuration" pointer to the write-path transport option, since that page otherwise covers SDK config shapes (BEDU-813).
• Relayer Overview (relayer/overview.md) — a "Sui RPC transport" subsection (BEDU-814).
• Self-Hosting (relayer/self-hosting.md) — a "Sui RPC Transport (gRPC write path)" subsection with an example and the JSON-RPC caveat (BEDU-815).

Test plan

• Sourced every claim from feat(relayer): gRPC write path for the JSON-RPC sunset (2026-07-31) #355 and the merged code (services/server/scripts/sidecar/config.ts, clients.ts, walrus-query.ts, and services/server/src/main.rs): the opt-in default, which write-path operations move to gRPC, the startup validation of the URL, and the fact that the blob query and restore path stays on JSON-RPC index methods.
• Documentation-only change; no runtime code affected.

🤖 Generated with Claude Code

https://claude.ai/code/session_017oS4PdhkXAzbfhJx2ZhRvh

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[jessiemongeon1]

the docs repeatedly say the blob query / restore path stays on JSON-RPC when SUI_GRPC_URL is set. That does not match current code.

services/server/scripts/sidecar/routes/walrus-query.ts switches /walrus/query-blobs to gRPC via listOwnedObjects + getDynamicField when SUI_GRPC_URL is set, and /api/restore calls that sidecar route through query_blobs_by_owner.

[reemsabawi-mystenlabs]

You're right, thanks for catching this. I checked routes/walrus-query.ts and clients.ts: when SUI_GRPC_URL is set, isGrpcClient is true and /walrus/query-blobs (and /api/restore through query_blobs_by_owner) runs on gRPC listOwnedObjects + getDynamicField. The JSON-RPC getOwnedObjects/getDynamicFieldObject/suix_queryTransactionBlocks path is the fallback used only when SUI_GRPC_URL is unset — clients.ts even documents suiJsonRpcClient as "only used by the blob query/restore path as the fallback when SUI_GRPC_URL is unset."

Fixed in 3c52a1a: all four pages now describe SUI_GRPC_URL as a single reversible switch that moves both the write path and the blob query/restore path to gRPC, rather than claiming query/restore stays on JSON-RPC. PTAL.

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[jessiemongeon1]

Style Guide Audit

All 4 file(s) pass the style guide audit.

[jessiemongeon1]

A few style guide issues and inconsistencies - are you using the Sui Style Guide skill in your Claude configuration?

[reemsabawi-mystenlabs]

Thanks Jessie, all applied in 01d08b4:

• Seal casing: standardized SEAL → Seal across the four touched pages (configuration.md, environment-variables.md, relayer/overview.md, relayer/self-hosting.md).
• Sunset date: corrected 2026-07-31 → July 2026 everywhere.
• Single bullet: inlined the lone SUI_GRPC_URL bullet into prose in both configuration.md and self-hosting.md.

One thing worth flagging: the rest of this repo overwhelmingly uses uppercase SEAL in prose (for example openclaw/overview.md, llms-full.txt). I've moved my touched pages to Seal to match the product name and the Sui style guide, but that leaves the repo internally inconsistent. Happy to open a separate PR to normalize the remaining SEAL prose references to Seal repo-wide if you'd like — kept it out of this PR to stay scoped.

Yes, I'm using the Sui Style Guide skill; these date/casing slips were mine, not the tooling. I'll keep them off the next batch.

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