Ankr Wallet NFT Inventory

arazzo: 1.0.1
info:
  title: Ankr Wallet NFT Inventory
  summary: List the NFTs owned by a wallet, then enrich one with full metadata.
  description: >-
    Inventories the NFTs held by a wallet with ankr_getNFTsByOwner, then drills
    into a single asset by pulling its detailed metadata with ankr_getNFTMetadata.
    When the wallet owns no NFTs the flow ends after the listing step. Each step
    is written out inline as a JSON-RPC call so the flow can be read and executed
    without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: advancedApi
  url: ../openapi/ankr-advanced-api-openapi.yml
  type: openapi
workflows:
- workflowId: nft-inventory
  summary: List a wallet's NFTs and fetch metadata for the first asset.
  description: >-
    Lists the NFTs owned by a wallet across the supplied chains and, when at
    least one asset is returned, retrieves the full metadata for the first asset.
  inputs:
    type: object
    required:
    - walletAddress
    - blockchain
    properties:
      walletAddress:
        type: string
        description: The wallet address whose NFTs are listed.
      blockchain:
        type: array
        items:
          type: string
        description: One or more chain names to scan for NFTs.
      pageSize:
        type: integer
        description: Maximum number of NFTs to return per page.
  steps:
  - stepId: listNfts
    description: >-
      Retrieve the list of NFTs owned by the wallet across the supplied chains.
    operationId: ankrGetNFTsByOwner
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: ankr_getNFTsByOwner
        params:
          walletAddress: $inputs.walletAddress
          blockchain: $inputs.blockchain
          pageSize: $inputs.pageSize
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      owner: $response.body#/result/owner
      assets: $response.body#/result/assets
      firstBlockchain: $response.body#/result/assets/0/blockchain
      firstContractAddress: $response.body#/result/assets/0/contractAddress
      firstTokenId: $response.body#/result/assets/0/tokenId
    onSuccess:
    - name: hasAssets
      type: goto
      stepId: getMetadata
      criteria:
      - context: $response.body
        condition: $.result.assets.length > 0
        type: jsonpath
    - name: noAssets
      type: end
      criteria:
      - context: $response.body
        condition: $.result.assets.length == 0
        type: jsonpath
  - stepId: getMetadata
    description: >-
      Retrieve the full metadata for the first NFT returned by the listing step.
    operationId: ankrGetNFTMetadata
    requestBody:
      contentType: application/json
      payload:
        jsonrpc: "2.0"
        id: 1
        method: ankr_getNFTMetadata
        params:
          blockchain: $steps.listNfts.outputs.firstBlockchain
          contractAddress: $steps.listNfts.outputs.firstContractAddress
          tokenId: $steps.listNfts.outputs.firstTokenId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      metadata: $response.body#/result
  outputs:
    owner: $steps.listNfts.outputs.owner
    assets: $steps.listNfts.outputs.assets
    metadata: $steps.getMetadata.outputs.metadata