0g-chain/x/pricefeed/client/rest/rest.go

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2019-11-25 19:46:02 +00:00
package rest
import (
"fmt"
"net/http"
"github.com/cosmos/cosmos-sdk/client/context"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/cosmos/cosmos-sdk/x/auth/client/utils"
"github.com/gorilla/mux"
"github.com/kava-labs/kava/x/pricefeed/types"
)
const (
restName = "assetCode"
)
type postPriceReq struct {
BaseReq rest.BaseReq `json:"base_req"`
AssetCode string `json:"asset_code"`
Price string `json:"price"`
Expiry string `json:"expiry"`
}
// RegisterRoutes - Central function to define routes that get registered by the main application
func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router, storeName string) {
r.HandleFunc(fmt.Sprintf("/%s/rawprices", storeName), postPriceHandler(cliCtx)).Methods("PUT")
r.HandleFunc(fmt.Sprintf("/%s/rawprices/{%s}", storeName, restName), getRawPricesHandler(cliCtx, storeName)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/%s/currentprice/{%s}", storeName, restName), getCurrentPriceHandler(cliCtx, storeName)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/%s/assets", storeName), getAssetsHandler(cliCtx, storeName)).Methods("GET")
}
func postPriceHandler(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
var req postPriceReq
if !rest.ReadRESTReq(w, r, cliCtx.Codec, &req) {
rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request")
return
}
baseReq := req.BaseReq.Sanitize()
if !baseReq.ValidateBasic(w) {
return
}
addr, err := sdk.AccAddressFromBech32(baseReq.From)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
price, err := sdk.NewDecFromStr(req.Price)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
expiry, ok := sdk.NewIntFromString(req.Expiry)
if !ok {
rest.WriteErrorResponse(w, http.StatusBadRequest, "invalid expiry")
return
}
// create the message
msg := types.NewMsgPostPrice(addr, req.AssetCode, price, expiry)
err = msg.ValidateBasic()
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
utils.WriteGenerateStdTxResponse(w, cliCtx, baseReq, []sdk.Msg{msg})
}
}
func getRawPricesHandler(cliCtx context.CLIContext, storeName string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
paramType := vars[restName]
res, _, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/rawprices/%s", storeName, paramType), nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
rest.PostProcessResponse(w, cliCtx, res)
}
}
func getCurrentPriceHandler(cliCtx context.CLIContext, storeName string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
paramType := vars[restName]
res, _, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/price/%s", storeName, paramType), nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
rest.PostProcessResponse(w, cliCtx, res)
}
}
func getAssetsHandler(cliCtx context.CLIContext, storeName string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
res, _, err := cliCtx.QueryWithData(fmt.Sprintf("custom/%s/assets/", storeName), nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
rest.PostProcessResponse(w, cliCtx, res)
}
}