104 lines
3.2 KiB
Go
104 lines
3.2 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package rpc
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import "fmt"
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// HTTPError is returned by client operations when the HTTP status code of the
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// response is not a 2xx status.
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type HTTPError struct {
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StatusCode int
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Status string
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Body []byte
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}
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func (err HTTPError) Error() string {
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if len(err.Body) == 0 {
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return err.Status
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}
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return fmt.Sprintf("%v: %s", err.Status, err.Body)
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}
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// Error wraps RPC errors, which contain an error code in addition to the message.
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type Error interface {
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Error() string // returns the message
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ErrorCode() int // returns the code
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}
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// A DataError contains some data in addition to the error message.
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type DataError interface {
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Error() string // returns the message
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ErrorData() interface{} // returns the error data
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}
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// Error types defined below are the built-in JSON-RPC errors.
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var (
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_ Error = new(methodNotFoundError)
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_ Error = new(subscriptionNotFoundError)
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_ Error = new(parseError)
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_ Error = new(invalidRequestError)
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_ Error = new(invalidMessageError)
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_ Error = new(invalidParamsError)
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)
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const defaultErrorCode = -32000
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type methodNotFoundError struct{ method string }
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func (e *methodNotFoundError) ErrorCode() int { return -32601 }
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func (e *methodNotFoundError) Error() string {
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return fmt.Sprintf("the method %s does not exist/is not available", e.method)
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}
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type subscriptionNotFoundError struct{ namespace, subscription string }
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func (e *subscriptionNotFoundError) ErrorCode() int { return -32601 }
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func (e *subscriptionNotFoundError) Error() string {
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return fmt.Sprintf("no %q subscription in %s namespace", e.subscription, e.namespace)
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}
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// Invalid JSON was received by the server.
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type parseError struct{ message string }
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func (e *parseError) ErrorCode() int { return -32700 }
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func (e *parseError) Error() string { return e.message }
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// received message isn't a valid request
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type invalidRequestError struct{ message string }
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func (e *invalidRequestError) ErrorCode() int { return -32600 }
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func (e *invalidRequestError) Error() string { return e.message }
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// received message is invalid
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type invalidMessageError struct{ message string }
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func (e *invalidMessageError) ErrorCode() int { return -32700 }
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func (e *invalidMessageError) Error() string { return e.message }
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// unable to decode supplied params, or an invalid number of parameters
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type invalidParamsError struct{ message string }
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func (e *invalidParamsError) ErrorCode() int { return -32602 }
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func (e *invalidParamsError) Error() string { return e.message }
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