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BlockchainContractValue (for bloxberg)

BlockchainContractValue[caddr,func]

calls the function func of a contract with address caddr.

BlockchainContractValue[caddr,assoc]

calls a contract with address caddr with the properties defined in Association assoc.

Details

  • Gives basic information about a bloxberg contract. By default, it targets the state of the latest block.
  • BlockchainContractValue has option BlockchainBase with default value $BlockchainBase.
  • BlockchainContractValue extracts a contract from the bloxberg blockchain, then runs the specified function in it. It cannot write data to a blockchain; this requires BlockchainTransactionSubmit.
  • BlockchainContractValue[caddr,func] calls a contract where func must be a Typed expression defining the name of the function and the output data type.
  • BlockchainContractValue[caddr,assoc] calls a contract with additional parameters where association assoc must have the following property:
  • "Function"Typed expression defining the function to call
  • Additionally, the association assoc can also have the following properties:
  • "Inputs"input parameters of the function to call
    "Sender"address of the sender that is calling the contract
    "BlockNumber"block number associated to a specific state of the blockchain
  • If a particular function does not successfully evaluate in the contract at a given address, BlockchainContractValue returns Missing["NoResult"].

Examples

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Basic Examples  (1)

Call the functions owner, relayedSet and getValidators, given an address:

Wolfram Language code: address = "9850711951a84ef8a2a31a7868d0dca34b0661ca";
Wolfram Language code: BlockchainContractValue[address, Typed["owner", "address"], BlockchainBase -> "Bloxberg"]
Wolfram Language code: BlockchainContractValue[address, Typed["relayedSet", "address"], BlockchainBase -> "Bloxberg"]
Wolfram Language code: validators = BlockchainContractValue[address, Typed["getValidators", "address[]"], BlockchainBase -> "Bloxberg"];
Wolfram Language code: BlockchainContractValue[address, <|"Function" -> Typed["getValidators", "address[]"], "BlockNumber" -> #|>, BlockchainBase -> "Bloxberg"]& /@ {100, 1000000, 2000000}//Column

Options  (1)

BlockchainBase  (1)

Bloxberg  (1)

Call the functions systemAddress, given an address:

Wolfram Language code: address = "9850711951a84ef8a2a31a7868d0dca34b0661ca";
Wolfram Language code: BlockchainContractValue[address, Typed["systemAddress", "address"], BlockchainBase -> "Bloxberg"]
Wolfram Research (2020), BlockchainContractValue, Wolfram Language function, https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html.

Text

Wolfram Research (2020), BlockchainContractValue, Wolfram Language function, https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html.

CMS

Wolfram Language. 2020. "BlockchainContractValue." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html.

APA

Wolfram Language. (2020). BlockchainContractValue. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html

BibTeX

@misc{reference.wolfram_2026_blockchaincontractvalue, author="Wolfram Research", title="{BlockchainContractValue}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_blockchaincontractvalue, organization={Wolfram Research}, title={BlockchainContractValue}, year={2020}, url={https://reference.wolfram.com/language/ref/blockchain/BlockchainContractValue-bloxberg.html}, note=[Accessed: 13-June-2026]}