[WIP] SSZ-REST Engine API transport Big Secret#19551
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Giulio2002 wants to merge 2 commits intomainfrom
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[WIP] SSZ-REST Engine API transport Big Secret#19551Giulio2002 wants to merge 2 commits intomainfrom
Giulio2002 wants to merge 2 commits intomainfrom
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Implements the EL side of EIP-8161, adding an SSZ-REST HTTP server alongside the existing JSON-RPC Engine API. All engine_* methods are mapped to REST endpoints with SSZ-encoded request/response bodies, cutting payload sizes ~50% and eliminating JSON encode/decode overhead. - New SSZ-REST HTTP server with JWT auth (same secret as JSON-RPC) - SSZ encode/decode for all Engine API types (PayloadStatus, ForkchoiceUpdatedResponse, NewPayloadRequest, GetPayloadResponse, GetBlobs, ExchangeCapabilities, ClientVersion, CommunicationChannels) - CLI flags: --authrpc.ssz-rest, --authrpc.ssz-rest-port - EIP-8160 integration: advertises ssz_rest channel via engine_getClientCommunicationChannelsV1 - Handles V4 (Electra) and V5 (Fulu) with correct fork version mapping - Proper SSZ Union types for optional fields (latest_valid_hash, payload_id) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Giulio2002
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yperbasis
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Implements the updated EIP-8160 spec where communication channels are returned as part of engine_exchangeCapabilitiesV2 instead of a separate engine_getClientCommunicationChannelsV1 method. The V2 response includes both capabilities and supportedProtocols fields. The old GetClientCommunicationChannelsV1 method is kept for backward compatibility but now delegates to the shared getSupportedProtocols(). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
engine_*methods mapped to REST endpoints with SSZ-encoded request/response bodies--authrpc.ssz-rest,--authrpc.ssz-rest-port(default 6767)ssz_restchannel viaengine_getClientCommunicationChannelsV1Key files
execution/engineapi/engine_ssz_rest_server.go— HTTP server + handlersexecution/engineapi/engine_types/ssz.go— SSZ encode/decode for all Engine API typescmd/utils/flags.go/node/cli/flags.go— CLI flag wiringTest plan
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