66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
#pragma once
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#include <functional>
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#include <memory>
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#include <sstream>
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#include <string>
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namespace nano
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{
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class rpc;
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/** Keeps information about http requests, and for v2+ includes path and header values of interest */
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class rpc_handler_request_params final
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{
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public:
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int rpc_version{ 1 };
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std::string path;
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std::string credentials;
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std::string correlation_id;
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/**
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* If the path is non-empty, this wraps the body inside an IPC API compliant envelope.
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* Otherwise the input string is returned unchanged.
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* This allows HTTP clients to use a simplified request format by omitting the envelope.
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* Envelope fields may still be specified through corresponding nano- header fields.
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*/
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std::string json_envelope (std::string const & body_a) const
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{
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std::string body_l;
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if (!path.empty ())
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{
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std::ostringstream json;
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json << "{";
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if (!credentials.empty ())
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{
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json << "\"credentials\": \"" << credentials << "\", ";
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}
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if (!correlation_id.empty ())
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{
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json << "\"correlation_id\": \"" << correlation_id << "\", ";
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}
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json << "\"message_type\": \"" << path << "\", ";
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json << "\"message\": " << body_a;
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json << "}";
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body_l = json.str ();
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}
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else
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{
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body_l = body_a;
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}
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return body_l;
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}
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};
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class rpc_handler_interface
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{
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public:
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virtual ~rpc_handler_interface () = default;
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/** Process RPC 1.0 request. */
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virtual void process_request (std::string const & action, std::string const & body, std::function<void (std::string const &)> response) = 0;
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/** Process RPC 2.0 request. This is called via the IPC API */
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virtual void process_request_v2 (rpc_handler_request_params const & params_a, std::string const & body, std::function<void (std::shared_ptr<std::string> const &)> response) = 0;
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virtual void stop () = 0;
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virtual void rpc_instance (nano::rpc & rpc) = 0;
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};
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}
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