rest

Documentation

Overview

Package rest provides HTTP types and primitives for REST requests validation and responses handling.

Index

• Constants
• func ParseFloat64OrReturnBadRequest(w http.ResponseWriter, s string, defaultIfEmpty float64) (n float64, ok bool)
• func ParseHTTPArgs(r *http.Request) (tags []string, page, limit int, err error)
• func ParseInt64OrReturnBadRequest(w http.ResponseWriter, s string) (n int64, ok bool)
• func ParseUint64OrReturnBadRequest(w http.ResponseWriter, s string) (n uint64, ok bool)
• func PostProcessResponse(w http.ResponseWriter, cdc *codec.Codec, response interface{}, indent bool)
• func ReadRESTReq(w http.ResponseWriter, r *http.Request, cdc *codec.Codec, req interface{}) bool
• func WriteErrorResponse(w http.ResponseWriter, status int, err string)
• func WriteSimulationResponse(w http.ResponseWriter, cdc *codec.Codec, gas uint64)
• type BaseReq
  • func NewBaseReq(from, memo, chainID, gasWanted, gasPrice, gasAdjustment string, ...) BaseReq
  • func (br BaseReq) Sanitize() BaseReq
  • func (br BaseReq) ValidateBasic(w http.ResponseWriter) bool
• type ErrorResponse
  • func NewErrorResponse(code int, err string) ErrorResponse
• type GasEstimateResponse

Constants

const (
	DefaultPage  = 1
	DefaultLimit = 30 // should be consistent with tendermint/tendermint/rpc/core/pipe.go:19
)

Functions

func ParseFloat64OrReturnBadRequest

func ParseFloat64OrReturnBadRequest(w http.ResponseWriter, s string, defaultIfEmpty float64) (n float64, ok bool)

ParseFloat64OrReturnBadRequest converts s to a float64 value. It returns a default value, defaultIfEmpty, if the string is empty.

func ParseHTTPArgs

func ParseHTTPArgs(r *http.Request) (tags []string, page, limit int, err error)

ParseHTTPArgs parses the request's URL and returns a slice containing all arguments pairs. It separates page and limit used for pagination

func ParseInt64OrReturnBadRequest

func ParseInt64OrReturnBadRequest(w http.ResponseWriter, s string) (n int64, ok bool)

ParseInt64OrReturnBadRequest converts s to a int64 value.

func ParseUint64OrReturnBadRequest

func ParseUint64OrReturnBadRequest(w http.ResponseWriter, s string) (n uint64, ok bool)

ParseUint64OrReturnBadRequest converts s to a uint64 value.

func PostProcessResponse

func PostProcessResponse(w http.ResponseWriter, cdc *codec.Codec, response interface{}, indent bool)

PostProcessResponse performs post processing for a REST response.

func ReadRESTReq

func ReadRESTReq(w http.ResponseWriter, r *http.Request, cdc *codec.Codec, req interface{}) bool

ReadRESTReq reads and unmarshals a Request's body to the the BaseReq stuct. Writes an error response to ResponseWriter and returns true if errors occurred.

func WriteErrorResponse

func WriteErrorResponse(w http.ResponseWriter, status int, err string)

WriteErrorResponse prepares and writes a HTTP error given a status code and an error message.

func WriteSimulationResponse

func WriteSimulationResponse(w http.ResponseWriter, cdc *codec.Codec, gas uint64)

WriteSimulationResponse prepares and writes an HTTP response for transactions simulations.

Types

type BaseReq

type BaseReq struct {
	From          string `json:"from"`
	Memo          string `json:"memo"`
	ChainID       string `json:"chain_id"`
	AccountNumber uint64 `json:"account_number"`
	Sequence      uint64 `json:"sequence"`
	GasWanted     string `json:"gas_wanted"` // junying-todo, 2019-11-15
	GasPrice      string `json:"gas_price"`
	GasAdjustment string `json:"gas_adjustment"`
	Simulate      bool   `json:"simulate"`
}

BaseReq defines a structure that can be embedded in other request structures that all share common "base" fields.

func NewBaseReq

func NewBaseReq(
	from, memo, chainID, gasWanted, gasPrice, gasAdjustment string, accNumber, seq uint64,
	simulate bool,
) BaseReq

NewBaseReq creates a new basic request instance and sanitizes its values

func (BaseReq) Sanitize

func (br BaseReq) Sanitize() BaseReq

Sanitize performs basic sanitization on a BaseReq object.

func (BaseReq) ValidateBasic

func (br BaseReq) ValidateBasic(w http.ResponseWriter) bool

ValidateBasic performs basic validation of a BaseReq. If custom validation logic is needed, the implementing request handler should perform those checks manually.

type ErrorResponse

type ErrorResponse struct {
	Code  int    `json:"code,omitempty"`
	Error string `json:"error"`
}

ErrorResponse defines the attributes of a JSON error response.

func NewErrorResponse

func NewErrorResponse(code int, err string) ErrorResponse

NewErrorResponse creates a new ErrorResponse instance.

type GasEstimateResponse

type GasEstimateResponse struct {
	GasEstimate uint64 `json:"gas_estimate"`
}

GasEstimateResponse defines a response definition for tx gas estimation.