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106 lines
3.6 KiB
Go
106 lines
3.6 KiB
Go
package response
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import (
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"fmt"
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"net/http"
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)
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type (
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// Error object for outputting JSON-RPC 2.0
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// errors.
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Error struct {
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Code int64 `json:"code"`
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HTTPCode int `json:"-"`
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Cause error `json:"-"`
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Message string `json:"message"`
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Data string `json:"data,omitempty"`
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}
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)
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// InternalServerErrorCode is returned for internal RPC server error.
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const InternalServerErrorCode = -32603
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var (
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// ErrInvalidParams represents a generic 'invalid parameters' error.
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ErrInvalidParams = NewInvalidParamsError("", nil)
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// ErrAlreadyExists represents SubmitError with code -501.
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ErrAlreadyExists = NewSubmitError(-501, "Block or transaction already exists and cannot be sent repeatedly.")
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// ErrOutOfMemory represents SubmitError with code -502.
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ErrOutOfMemory = NewSubmitError(-502, "The memory pool is full and no more transactions can be sent.")
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// ErrUnableToVerify represents SubmitError with code -503.
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ErrUnableToVerify = NewSubmitError(-503, "The block cannot be validated.")
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// ErrValidationFailed represents SubmitError with code -504.
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ErrValidationFailed = NewSubmitError(-504, "Block or transaction validation failed.")
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// ErrPolicyFail represents SubmitError with code -505.
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ErrPolicyFail = NewSubmitError(-505, "One of the Policy filters failed.")
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// ErrUnknown represents SubmitError with code -500.
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ErrUnknown = NewSubmitError(-500, "Unknown error.")
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)
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// NewError is an Error constructor that takes Error contents from its
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// parameters.
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func NewError(code int64, httpCode int, message string, data string, cause error) *Error {
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return &Error{
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Code: code,
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HTTPCode: httpCode,
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Cause: cause,
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Message: message,
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Data: data,
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}
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}
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// NewParseError creates a new error with code
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// -32700.
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func NewParseError(data string, cause error) *Error {
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return NewError(-32700, http.StatusBadRequest, "Parse Error", data, cause)
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}
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// NewInvalidRequestError creates a new error with
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// code -32600.
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func NewInvalidRequestError(data string, cause error) *Error {
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return NewError(-32600, http.StatusUnprocessableEntity, "Invalid Request", data, cause)
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}
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// NewMethodNotFoundError creates a new error with
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// code -32601.
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func NewMethodNotFoundError(data string, cause error) *Error {
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return NewError(-32601, http.StatusMethodNotAllowed, "Method not found", data, cause)
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}
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// NewInvalidParamsError creates a new error with
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// code -32602.
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func NewInvalidParamsError(data string, cause error) *Error {
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return NewError(-32602, http.StatusUnprocessableEntity, "Invalid Params", data, cause)
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}
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// NewInternalServerError creates a new error with
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// code -32603.
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func NewInternalServerError(data string, cause error) *Error {
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return NewError(InternalServerErrorCode, http.StatusInternalServerError, "Internal error", data, cause)
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}
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// NewRPCError creates a new error with
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// code -100.
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func NewRPCError(message string, data string, cause error) *Error {
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return NewError(-100, http.StatusUnprocessableEntity, message, data, cause)
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}
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// NewSubmitError creates a new error with
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// specified error code and error message.
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func NewSubmitError(code int64, message string) *Error {
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return NewError(code, http.StatusUnprocessableEntity, message, "", nil)
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}
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// Error implements the error interface.
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func (e *Error) Error() string {
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if e.Cause == nil {
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return fmt.Sprintf("%s (%d) - %s", e.Message, e.Code, e.Data)
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}
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return fmt.Sprintf("%s (%d) - %s - %s", e.Message, e.Code, e.Data, e.Cause)
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}
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// WrapErrorWithData returns copy of the given error with the specified data and cause.
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// It does not modify the source error.
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func WrapErrorWithData(e *Error, data error) *Error {
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return NewError(e.Code, e.HTTPCode, e.Message, data.Error(), data)
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}
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