github.com/ethereumproject/go-ethereum@v5.5.2+incompatible/rpc/errors.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package rpc
    18  
    19  import "fmt"
    20  
    21  // request is for an unknown service
    22  type methodNotFoundError struct {
    23  	service string
    24  	method  string
    25  }
    26  
    27  func (e *methodNotFoundError) Code() int {
    28  	return -32601
    29  }
    30  
    31  func (e *methodNotFoundError) Error() string {
    32  	return fmt.Sprintf("The method %s%s%s does not exist/is not available", e.service, serviceMethodSeparator, e.method)
    33  }
    34  
    35  // received message isn't a valid request
    36  type invalidRequestError struct {
    37  	message string
    38  }
    39  
    40  func (e *invalidRequestError) Code() int {
    41  	return -32600
    42  }
    43  
    44  func (e *invalidRequestError) Error() string {
    45  	return e.message
    46  }
    47  
    48  // received message is invalid
    49  type invalidMessageError struct {
    50  	message string
    51  }
    52  
    53  func (e *invalidMessageError) Code() int {
    54  	return -32700
    55  }
    56  
    57  func (e *invalidMessageError) Error() string {
    58  	return e.message
    59  }
    60  
    61  // unable to decode supplied params, or an invalid number of parameters
    62  type invalidParamsError struct {
    63  	message string
    64  }
    65  
    66  func (e *invalidParamsError) Code() int {
    67  	return -32602
    68  }
    69  
    70  func (e *invalidParamsError) Error() string {
    71  	return e.message
    72  }
    73  
    74  // logic error, callback returned an error
    75  type callbackError struct {
    76  	message string
    77  }
    78  
    79  func (e *callbackError) Code() int {
    80  	return -32000
    81  }
    82  
    83  func (e *callbackError) Error() string {
    84  	return e.message
    85  }
    86  
    87  // issued when a request is received after the server is issued to stop.
    88  type shutdownError struct {
    89  }
    90  
    91  func (e *shutdownError) Code() int {
    92  	return -32000
    93  }
    94  
    95  func (e *shutdownError) Error() string {
    96  	return "server is shutting down"
    97  }