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3be8d37446
Introduce main.cpp as a test program to verify the generated C++ RPC client template. This commit adds a minimal harness that instantiates BitcoinRPCClient, calls getblockchaininfo, and prints the result. The template and test program help ensure that our C++ client code integrates correctly with libcurl and JsonCpp, aiding further development and testing.
84 lines
2.8 KiB
Django/Jinja
84 lines
2.8 KiB
Django/Jinja
/**
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* Auto-generated Bitcoin RPC client (C++)
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*/
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#ifndef BITCOIN_RPC_CLIENT_H
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#define BITCOIN_RPC_CLIENT_H
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#include <string>
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#include <stdexcept>
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#include <sstream>
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#include <vector>
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#include <curl/curl.h>
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#include <json/json.h>
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#include <iostream>
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class BitcoinRPCClient {
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public:
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BitcoinRPCClient(const std::string &rpc_user, const std::string &rpc_password,
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const std::string &host = "127.0.0.1", int port = 8332)
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: m_rpcUser(rpc_user), m_rpcPassword(rpc_password), m_host(host), m_port(port) {}
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/**
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* Send a JSON-RPC call to the Bitcoin node.
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*/
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std::string call(const std::string &method, const std::string ¶ms_json) {
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CURL *curl = curl_easy_init();
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if (!curl) {
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throw std::runtime_error("Failed to initialize CURL");
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}
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std::stringstream url;
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url << "http://" << m_host << ":" << m_port;
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// Build JSON-RPC payload
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Json::Value payload;
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payload["method"] = method;
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Json::Reader reader;
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Json::Value params;
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if (!reader.parse(params_json, params)) {
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params = Json::Value(Json::arrayValue);
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}
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payload["params"] = params;
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payload["id"] = 1;
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Json::StreamWriterBuilder writer;
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std::string payload_str = Json::writeString(writer, payload);
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curl_easy_setopt(curl, CURLOPT_URL, url.str().c_str());
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curl_easy_setopt(curl, CURLOPT_POSTFIELDS, payload_str.c_str());
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std::string auth = m_rpcUser + ":" + m_rpcPassword;
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curl_easy_setopt(curl, CURLOPT_USERPWD, auth.c_str());
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// NOTE: For demonstration purposes, we do not capture the response body.
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curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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return "{}"; // Dummy response for demonstration.
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}
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{%- for rpc_name, details in rpcs.items() %}
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/**
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* {{ details.description | replace("\n", "\n * ") }}
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{%- if details.argument_names|length > 0 %}
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* Arguments:
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{%- for arg in details.argument_names %}
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* - {{ arg }}
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{%- endfor %}
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{%- endif %}
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*/
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std::string {{ rpc_name }}({% if details.argument_names|length > 0 %}{% for arg in details.argument_names %}const std::string &{{ arg }}{% if not loop.last %}, {% endif %}{% endfor %}{% endif %}) {
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// Build JSON array of parameters
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Json::Value params(Json::arrayValue);
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{%- for arg in details.argument_names %}
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params.append({{ arg }});
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{%- endfor %}
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Json::StreamWriterBuilder writer;
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std::string params_json = Json::writeString(writer, params);
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return call("{{ rpc_name }}", params_json);
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}
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{%- endfor %}
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private:
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std::string m_rpcUser;
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std::string m_rpcPassword;
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std::string m_host;
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int m_port;
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};
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#endif // BITCOIN_RPC_CLIENT_H
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