GetContractFromTransaction()

Summary

Route	Type	Example
/contract/getfromtransaction	POST	http://apinode.credits.com/api/contract/getfromtransaction

Description

Get smart contract source code from a transaction.

Request

Request Structure

// Parameters common for all requests "transactionId": "Decimal_String", // Smart contract address in Base58 “compressed”: boolean value // Indicator of data compression true or false }

Request Parameters

transactionId: transactionId- transaction identifier in the form block_number.transaction_number

bool: Compressed - Request compressed data True or False

Response

JSON output depends on the request type and its success.

If there’s an error, request returns to the node basic Result:

Success: False
Message:

If successful, requested information is returned.

Response Structure

{ "gZipped":Bytes, // Source code of smart contract Compressed "sourceString":"String", // Source code of smart contract in String Value "success":bool, // Shows if request was Succes or False Boolean Value "message":"String" // Shows if a problem occurred with request in String Value }

Example Code

import requests import json def Getcontractbytransaction(): url = 'http://apinode.credits.com/api/contract/getfromtransaction' headers = { 'Content-type': 'application/json' , 'Accept': 'application/json' , 'Content-Encoding': 'utf-8' } data = { "NetworkAlias":"Mainnet" , "transactionId":"25920647.1" , "compressed": False } answer = requests.post(url, data=json.dumps(data), headers=headers) response = answer.json() print(response) Getcontractbytransaction()

using System; using System.Net.Http; using System.Text; using System.Threading.Tasks; using Newtonsoft.Json; namespace Program.Getinfo { public class Getcontractbytransaction { static readonly HttpClient client = new HttpClient(); public class body { public string authKey { get; set; } public string networkAlias { get; set; } public string transactionId { get; set; } public bool compressed { get; set; } } public static async Task Main() { try { var body = new body { authKey = "", networkAlias = "Mainnet", transactionId = "25920647.1", compressed = false }; var httpContent = new StringContent(JsonConvert.SerializeObject(body), Encoding.UTF8, "application/json"); var response = await client.PostAsync("http://apinode.credits.com/api/contract/getfromtransaction", httpContent); Console.WriteLine("RESPONSE=" + await response.Content.ReadAsStringAsync()); } catch (Exception e) { Console.WriteLine(e); } } } }

#include <iostream> #include <cpprest/http_client.h> #include <cpprest/filestream.h> using namespace utility; // Common utilities like string conversions using namespace web; // Common features like URIs. using namespace web::http; // Common HTTP functionality using namespace web::http::client; // HTTP client features using namespace concurrency::streams; // Asynchronous streams using namespace web::json; int main(int argc, char* argv[]) { web::json::value json_v; web::json::value json_return; json_v[L"authKey"] = web::json::value::string(L""); json_v[L"NetworkAlias"] = web::json::value::string(L"Mainnet"); json_v[L"transactionId"] = web::json::value::string(L"25920647.1"); json_v[L"compressed"] = web::json::value::boolean(false); http_client client(U("http://apinode.credits.com")); client.request(web::http::methods::POST, U("/api/contract/getfromtransaction"), json_v) .then([](const web::http::http_response& response) { return response.extract_json(); }) .then([&json_return](const pplx::task<web::json::value>& task) { try { json_return = task.get(); } catch (const web::http::http_exception& e) { std::cout << "error " << e.what() << std::endl; } }) .wait(); std::wcout << json_return.serialize() << std::endl; return 0; }

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