Emcee

package jsonrpc import ( "fmt" ) // ErrorCode represents a JSON-RPC error code type ErrorCode int // JSON-RPC 2.0 error codes as defined in https://www.jsonrpc.org/specification const ( // Parse error (-32700) // Invalid JSON was received by the server. // An error occurred on the server while parsing the JSON text. ErrParse ErrorCode = -32700 // Invalid Request (-32600) // The JSON sent is not a valid Request object. ErrInvalidRequest ErrorCode = -32600 // Method not found (-32601) // The method does not exist / is not available. ErrMethodNotFound ErrorCode = -32601 // Invalid params (-32602) // Invalid method parameter(s). ErrInvalidParams ErrorCode = -32602 // Internal error (-32603) // Internal JSON-RPC error. ErrInternal ErrorCode = -32603 // Server error (-32000 to -32099) // Reserved for implementation-defined server-errors. ErrServer ErrorCode = -32000 ) // errorDetails maps error codes to their standard messages var errorDetails = map[ErrorCode]string{ ErrParse: "Parse error", ErrInvalidRequest: "Invalid Request", ErrMethodNotFound: "Method not found", ErrInvalidParams: "Invalid params", ErrInternal: "Internal error", ErrServer: "Server error", } // Error represents a JSON-RPC error object type Error struct { Code ErrorCode `json:"code"` Message string `json:"message"` Data interface{} `json:"data,omitempty"` } var _ error = &Error{} func (e *Error) Error() string { return fmt.Sprintf("%d: %s", e.Code, e.Message) } // NewError creates a new JSON-RPC error with the given code and optional data func NewError(code ErrorCode, data interface{}) *Error { msg, ok := errorDetails[code] if !ok { if code >= -32099 && code <= -32000 { msg = "Server error" } else { msg = "Unknown error" } } return &Error{ Code: code, Message: msg, Data: data, } }