Class: NftChecker::OpenSea

Inherits:
Object
  • Object
show all
Defined in:
lib/nft_checker/open_sea.rb

Overview

NFT Checker implementation for OpenSea

Instance Method Summary collapse

Constructor Details

#initialize(testnet: false) ⇒ OpenSea

Returns a new instance of OpenSea.

Parameters:

  • testnet (defaults to: false) —

    Use OpenSea ‘testnets’ API (default false)



9
10
11
 
# File 'lib/nft_checker/open_sea.rb', line 9

def initialize(testnet: false)
  @url_base = testnet ? "https://testnets-api.opensea.io/" : "https://api.opensea.io/"
end

Instance Method Details

#list_nfts(collection_metadata, owner_address) ⇒ Object

List all NFTs in the collection owned by the given address

Parameters:

  • collection_metadata —

    • hash containing :slug for OpenSea collection

  • owner_address —

    • address to check for NFTs



30
31
32
33
34
35
 
# File 'lib/nft_checker/open_sea.rb', line 30

def list_nfts(collection_metadata, owner_address)
  rez = HTTParty.get("#{@url_base}assets", query: { owner: owner_address, collection: collection_metadata[:slug] })
  handle_response_codes(rez, not_found: []) do
    rez.parsed_response["assets"] || []
  end
end

#verify_owner(nft_metadata, owner_address) ⇒ Object

Verify that the NFT is owned by the given address

Parameters:

  • nft_metadata —

    • hash containing :contract_address and :token_id values

  • owner_address —

    • address of presumed NFT owner



16
17
18
19
20
21
22
23
24
25
 
# File 'lib/nft_checker/open_sea.rb', line 16

def verify_owner(nft_metadata, owner_address)
  contract, token = nft_metadata.slice(:contract_address, :token_id).values
  rez = HTTParty.get(@url_base + "asset/#{contract}/#{token}/", query: { account_address: owner_address })
  handle_response_codes(rez, not_found: false) do
    ownership_data = rez.parsed_response["ownership"]
    return false if ownership_data.nil?

    ownership_data["owner"]["address"].casecmp(owner_address).zero? && ownership_data["quantity"].to_i.positive?
  end
end