Solana Identify a Node and Its Cluster and Snapshot State

arazzo: 1.0.1
info:
  title: Solana Identify a Node and Its Cluster and Snapshot State
  summary: Read a node's identity, genesis hash, version, snapshot slots, and shred-processing high-water marks.
  description: >-
    The provenance check a validator operator runs against an RPC endpoint. The
    workflow reads the node's identity public key, reads the genesis hash that
    definitively identifies which cluster the node is on — the reliable way to
    catch a client pointed at Devnet when it believes it is on Mainnet — records
    the software version, reads the highest full and incremental snapshot slots
    the node can serve to a bootstrapping validator, and reads the retransmit
    and shred-insert high-water marks that show how far its shred processing has
    advanced. Every step spells out its JSON-RPC request inline so the flow can
    be read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: solanaRpcApi
  url: ../openapi/solana-rpc-api-openapi.yml
  type: openapi
workflows:
- workflowId: node-identity-snapshot
  summary: Establish which node is being talked to, on which cluster, and what it can serve.
  description: >-
    Pins down node identity, cluster provenance, and snapshot availability in
    one pass.
  inputs:
    type: object
    properties: {}
  steps:
  - stepId: identity
    description: >-
      Read the node's identity public key, which is how a specific validator is
      named everywhere else on the cluster.
    operationId: getIdentity
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getIdentity
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result.identity
      type: jsonpath
    outputs:
      identity: $response.body#/result/identity
  - stepId: genesisHash
    description: >-
      Read the genesis hash, the unambiguous fingerprint of which cluster this
      node belongs to. Comparing it against an expected value is the surest
      guard against pointing production traffic at a test cluster.
    operationId: getGenesisHash
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getGenesisHash
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      genesisHash: $response.body#/result
  - stepId: version
    description: >-
      Record the solana-core version and feature set, needed to interpret the
      snapshot and shred values that follow.
    operationId: getVersion
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getVersion
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      solanaCore: $response.body#/result/solana-core
      featureSet: $response.body#/result/feature-set
  - stepId: snapshotSlot
    description: >-
      Read the highest full and incremental snapshot slots the node holds, which
      determines whether it can bootstrap another validator and from how recent
      a point.
    operationId: getHighestSnapshotSlot
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getHighestSnapshotSlot
        params: []
    successCriteria:
    - condition: $statusCode == 200
    - context: $response.body
      condition: $.result
      type: jsonpath
    outputs:
      full: $response.body#/result/full
      incremental: $response.body#/result/incremental
  - stepId: maxRetransmitSlot
    description: >-
      Read the highest slot the node has seen via its retransmit stage, an early
      indicator of how current its shred pipeline is.
    operationId: getMaxRetransmitSlot
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getMaxRetransmitSlot
        params: []
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      slot: $response.body#/result
  - stepId: maxShredInsertSlot
    description: >-
      Read the highest slot for which the node has inserted shreds. Compared
      against the retransmit mark, it shows whether the node keeps up with the
      shreds it receives.
    operationId: getMaxShredInsertSlot
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: getMaxShredInsertSlot
        params: []
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      slot: $response.body#/result
  outputs:
    identity: $steps.identity.outputs.identity
    genesisHash: $steps.genesisHash.outputs.genesisHash
    solanaCore: $steps.version.outputs.solanaCore
    highestFullSnapshotSlot: $steps.snapshotSlot.outputs.full
    maxRetransmitSlot: $steps.maxRetransmitSlot.outputs.slot
    maxShredInsertSlot: $steps.maxShredInsertSlot.outputs.slot