wwa::json_rpc::exception Class Reference

JSON RPC Exception class. More...

#include <exception.h>

Inheritance diagram for wwa::json_rpc::exception:

Collaboration diagram for wwa::json_rpc::exception:

Public Member Functions
	exception (const exception &)=default
	Default copy constructor.
	exception (exception &&)=default
	Default move constructor.
	exception (int code, std::string_view message)
	Construct a new exception object.
template<typename T >
	exception (int code, std::string_view message, const T &data)
	Construct a new exception object with additional data.
	~exception () override
	Default destructor.
int	code () const noexcept
	Returns the error code.
const nlohmann::json &	data () const noexcept
	Returns custom data associated with the error.
const std::string &	message () const noexcept
	Returns the error message.
exception &	operator= (const exception &rhs)=default
	Default copy assignment operator.
exception &	operator= (exception &&rhs)=default
	Default move assignment operator.
nlohmann::json	to_json () const
	Returns the error message as an Error Object.
const char *	what () const noexcept override
	Returns the error message.

Static Public Attributes
static constexpr int	INTERNAL_ERROR = -32603
	Internal JSON-RPC error.
static constexpr int	INVALID_PARAMS = -32602
	Invalid method parameter(s).
static constexpr int	INVALID_REQUEST = -32600
	The JSON sent is not a valid Request object.
static constexpr int	METHOD_NOT_FOUND = -32601
	The method does not exist or is not available.
static constexpr int	PARSE_ERROR = -32700
	Invalid JSON was received by the server.

Private Attributes
int	m_code
	Error code.
nlohmann::json	m_data
	Custom data associated with the error.
std::string	m_message
	Error message.

Detailed Description

JSON RPC Exception class.

This class represents an exception that can occur during the processing of JSON RPC requests. It includes an error code, a message, and optional additional data.

Definition at line 79 of file exception.h.

Constructor & Destructor Documentation

exception() [1/4]

template<typename T >

wwa::json_rpc::exception::exception ( int code, std::string_view message, const T & data )

inline

Construct a new exception object with additional data.

Template Parameters

T	Type of the data. Must be convertible to nlohmann::json.

Parameters

code	Indicates the error type that occurred.
message	Provides a short description of the error. The message SHOULD be limited to a concise single sentence.
data	Additional information about the error.

See also

https://www.jsonrpc.org/specification#error_object

Definition at line 127 of file exception.h.

                                                               : m_message(message), m_data(data), m_code(code)
    {}

exception() [2/4]

wwa::json_rpc::exception::exception ( int code, std::string_view message )

inline

Construct a new exception object.

Parameters

code	Indicates the error type that occurred.
message	Provides a short description of the error. The message SHOULD be limited to a concise single sentence.

See also

https://www.jsonrpc.org/specification#error_object

Definition at line 138 of file exception.h.

: m_message(message), m_code(code) {}

exception() [3/4]

wwa::json_rpc::exception::exception ( const exception & )

default

Default copy constructor.

exception() [4/4]

wwa::json_rpc::exception::exception ( exception && )

default

Default move constructor.

~exception()

wwa::json_rpc::exception::~exception ( )

overridedefault

Default destructor.

Member Function Documentation

code()

int wwa::json_rpc::exception::code ( ) const

inlinenodiscardnoexcept

Returns the error code.

Returns

Error code.

Definition at line 176 of file exception.h.

{ return this->m_code; }

data()

const nlohmann::json & wwa::json_rpc::exception::data ( ) const

inlinenodiscardnoexcept

Returns custom data associated with the error.

Returns

Custom data in JSON format.

Definition at line 190 of file exception.h.

{ return this->m_data; }

message()

const std::string & wwa::json_rpc::exception::message ( ) const

inlinenodiscardnoexcept

Returns the error message.

Returns

Error message.

Definition at line 183 of file exception.h.

{ return this->m_message; }

operator=() [1/2]

exception & wwa::json_rpc::exception::operator= ( const exception & rhs )

default

Default copy assignment operator.

Parameters

rhs	Right-hand side of the assignment.

Returns

Reference to this object.

operator=() [2/2]

exception & wwa::json_rpc::exception::operator= ( exception && rhs )

default

Default move assignment operator.

Parameters

rhs	Right-hand side of the assignment.

Returns

Reference to this object.

to_json()

nlohmann::json wwa::json_rpc::exception::to_json ( ) const

inlinenodiscard

Returns the error message as an Error Object.

See also

https://www.jsonrpc.org/specification#error_object

Returns

Error Object as JSON.

Definition at line 208 of file exception.h.

    {
        nlohmann::json j{
            {"code", this->m_code},
            {"message", this->m_message},
        };
 
        if (!this->m_data.is_null()) {
            j["data"] = this->m_data;
        }
 
        return j;
    }

what()

const char * wwa::json_rpc::exception::what ( ) const

inlinenodiscardoverridenoexcept

Returns the error message.

See also

https://en.cppreference.com/w/cpp/error/exception/what

Returns

Pointer to a null-terminated string with explanatory information.

See also

message()

Definition at line 200 of file exception.h.

{ return this->m_message.c_str(); }

Member Data Documentation

m_code

int wwa::json_rpc::exception::m_code

private

Error code.

Definition at line 225 of file exception.h.

m_data

nlohmann::json wwa::json_rpc::exception::m_data

private

Custom data associated with the error.

Definition at line 224 of file exception.h.

m_message

std::string wwa::json_rpc::exception::m_message

private

Error message.

Definition at line 223 of file exception.h.

---

The documentation for this class was generated from the following files:

• exception.h
• exception.cpp