TriggerConstantContract

post https://api.shasta.trongrid.io/wallet/triggerconstantcontract

Trigger the constant of the smart contract, the transaction is off the blockchain. Returns the Transaction Object. The corresponding method must be marked view or pure.

The above example queries the TRC20 balance of an account.

Note:
ABI rules
Example: Parameter and return value encoding and decoding

Body Params

owner_address

string

Defaults to 410000000000000000000000000000000000000000

Owner address that triggers the contract. If visible=true, use base58check format, otherwise use hex format. For constant call you can use the all-zero address.

contract_address

string

Defaults to 41a614f803b6fd780986a42c78ec9c7f77e6ded13c

Smart contract address. If visible=true, use base58check format, otherwise use hex format.

function_selector

string

Defaults to balanceOf(address)

Function call, must not be left blank.

parameter

string

Defaults to 000000000000000000000000a614f803b6fd780986a42c78ec9c7f77e6ded13c

Parameter encoding needs to be in accordance with the ABI rules, the rules are more complicated, users can use the ethers library to encode,For details, please refer to the document-Guide-Smart Contract-Best Practice-Parameter Encoding and Decoding.

visible

boolean

Optional.Whehter the address is in base58 format.

Responses

Language


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curl --request POST \
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     --url https://api.shasta.trongrid.io/wallet/triggerconstantcontract \
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     --header 'accept: application/json' \
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     --header 'content-type: application/json' \
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     --data '
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{
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  "owner_address": "410000000000000000000000000000000000000000",
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  "contract_address": "41a614f803b6fd780986a42c78ec9c7f77e6ded13c",
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  "function_selector": "balanceOf(address)",
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  "parameter": "000000000000000000000000a614f803b6fd780986a42c78ec9c7f77e6ded13c"
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}
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'

Click Try It! to start a request and see the response here! Or choose an example:

application/json

200200

400400