CallContract()

Use this method if you want to execute a function writte in a smart contract.

Method Signature

func CallContract(blockchain string, from string, project string, request string) map[string]interface{}

Parameters

Name	Type	Description
blockchain	String	Blockchain address in hex
from	String	User's wallet address in hex
project	String	Smart Contract's address in hex
request	String	Requested function in string format (include the parenthesis and the semicolumn e.g. CRC_Contract.__GetContractName();).

Example

package main

import (
	"fmt"

	"github.com/circular-protocol/circular-go/circular_protocol_api"
)

func main() {
	var blockchain = "0x8a20baa40c45dc5055aeb26197c203e576ef389d9acb171bd62da11dc5ad72b2"
	var test_addr = "0x8b1dd25076c04c5139acba458f86c69cd2d322c61d19bc28daa3bbd945083738"
	var contract_addr = "0x9f20baa40c45dc4125aeb26197c203e576ef389d9acb171bd62da11dc5ad72b3"

	result := circular_protocol_api.CallContract(blockchain, test_addr, contract_addr, "CRC_Contract.__GetContractName();")
	fmt.Println(result)
}

Result

The result will be of type Map, but for easier readability, here is the equivalent in JSON.

200

{
    "Result": 200,
    "Response": "7b20225f506572666f726d616e636522203a2022487970657220436f646520457865637574696f6e2054696d653a20313130307573222c200a0a225f436f6e736f6c655f4f757470757422203a202235343635373337343230373336643631373237343230363336663665373437323631363337343061227d",
    "Node": "7bb5bd50729d6857942701d5673ea70ca1625f883230d8543970a452d1abe1c4"
}

Remember to convert the response from Hex to String if you want to get the result in plain text.

117

Wrong function call. Remember to pass the request in Hex format as shown in the body section or to verify that the smart contract address is the right one.

{
    "Result": 117,
    "Response": "4552524f523a57726f6e672046756e6374696f6e2043616c6c3a200a",
    "Node": "7bb5bd50729d6857942701d5673ea70ca1625f883230d8543970a452d1abe1c4"
}