0g-chain/x/cdp/client/rest/query.go

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package rest
import (
"fmt"
"net/http"
"strconv"
"strings"
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"github.com/cosmos/cosmos-sdk/client/context"
sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/gorilla/mux"
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"github.com/kava-labs/kava/x/cdp/types"
)
// define routes that get registered by the main application
func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
r.HandleFunc("/cdp/accounts", getAccountsHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc("/cdp/parameters", getParamsHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/cdp/cdps/cdp/{%s}/{%s}", types.RestOwner, types.RestCollateralType), queryCdpHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/cdp/cdps"), queryCdpsHandlerFn(cliCtx)).Methods("GET")
r.HandleFunc(fmt.Sprintf("/cdp/cdps/collateralType/{%s}", types.RestCollateralType), queryCdpsByCollateralTypeHandlerFn(cliCtx)).Methods("GET") // legacy
r.HandleFunc(fmt.Sprintf("/cdp/cdps/ratio/{%s}/{%s}", types.RestCollateralType, types.RestRatio), queryCdpsByRatioHandlerFn(cliCtx)).Methods("GET") // legacy
r.HandleFunc(fmt.Sprintf("/cdp/cdps/cdp/deposits/{%s}/{%s}", types.RestOwner, types.RestCollateralType), queryCdpDepositsHandlerFn(cliCtx)).Methods("GET")
}
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func queryCdpHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
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cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
vars := mux.Vars(r)
ownerBech32 := vars[types.RestOwner]
collateralType := vars[types.RestCollateralType]
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owner, err := sdk.AccAddressFromBech32(ownerBech32)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
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params := types.NewQueryCdpParams(owner, collateralType)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
return
}
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetCdp), bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
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}
func queryCdpsByCollateralTypeHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
vars := mux.Vars(r)
collateralType := vars[types.RestCollateralType]
params := types.NewQueryCdpsByCollateralTypeParams(collateralType)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
return
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}
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetCdpsByCollateralType), bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
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}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}
func queryCdpsByRatioHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
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cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
vars := mux.Vars(r)
collateralType := vars[types.RestCollateralType]
ratioStr := vars[types.RestRatio]
ratioDec, sdkError := sdk.NewDecFromStr(ratioStr)
if sdkError != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, sdkError.Error())
return
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}
params := types.NewQueryCdpsByRatioParams(collateralType, ratioDec)
bz, err := cliCtx.Codec.MarshalJSON(params)
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if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
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return
}
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetCdpsByCollateralization), bz)
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if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}
func queryCdpDepositsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
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cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
vars := mux.Vars(r)
ownerBech32 := vars[types.RestOwner]
collateralType := vars[types.RestCollateralType]
owner, err := sdk.AccAddressFromBech32(ownerBech32)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
params := types.NewQueryCdpDeposits(owner, collateralType)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal query params: %s", err))
return
}
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetCdpDeposits), bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}
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func getParamsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
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cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
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res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetParams), nil)
cliCtx = cliCtx.WithHeight(height)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
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rest.PostProcessResponse(w, cliCtx, res)
}
}
func getAccountsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetAccounts), nil)
cliCtx = cliCtx.WithHeight(height)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
rest.PostProcessResponse(w, cliCtx, res)
}
}
func queryCdpsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
_, page, limit, err := rest.ParseHTTPArgsWithLimit(r, 0)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
// Parse the query height
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
var cdpCollateralType string
var cdpOwner sdk.AccAddress
var cdpID uint64
var cdpRatio sdk.Dec
if x := r.URL.Query().Get(RestCollateralType); len(x) != 0 {
cdpCollateralType = strings.TrimSpace(x)
}
if x := r.URL.Query().Get(RestOwner); len(x) != 0 {
cdpOwnerStr := strings.ToLower(strings.TrimSpace(x))
cdpOwner, err = sdk.AccAddressFromBech32(cdpOwnerStr)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("cannot parse address from cdp owner %s", cdpOwnerStr))
return
}
}
if x := r.URL.Query().Get(RestID); len(x) != 0 {
cdpID, err = strconv.ParseUint(strings.TrimSpace(x), 10, 64)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
}
if x := r.URL.Query().Get(RestRatio); len(x) != 0 {
cdpRatio, err = sdk.NewDecFromStr(strings.TrimSpace(x))
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
} else {
// Set to sdk.Dec(0) so that if not specified in params it doesn't panic when unmarshaled
cdpRatio = sdk.ZeroDec()
}
params := types.NewQueryCdpsParams(page, limit, cdpCollateralType, cdpOwner, cdpID, cdpRatio)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
route := fmt.Sprintf("custom/%s/%s", types.ModuleName, types.QueryGetCdps)
res, height, err := cliCtx.QueryWithData(route, bz)
cliCtx = cliCtx.WithHeight(height)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
rest.PostProcessResponse(w, cliCtx, res)
}
}