mirror of
https://github.com/0glabs/0g-chain.git
synced 2024-11-10 18:15:19 +00:00
101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
package rest
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import (
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"fmt"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/types/rest"
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"github.com/kava-labs/kava/x/cdp/types"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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/*
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API Design:
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Currently CDPs do not have IDs so standard REST uri conventions (ie GET /cdps/{cdp-id}) don't work too well.
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Get one or more cdps
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GET /cdps?collateralDenom={denom}&owner={address}&underCollateralizedAt={price}
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Modify a CDP (idempotent). Create is not separated out because conceptually all CDPs already exist (just with zero collateral and debt). // TODO is making this idempotent actually useful?
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PUT /cdps
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Get the module params, including authorized collateral denoms.
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GET /params
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*/
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// RegisterRoutes - Central function to define routes that get registered by the main application
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func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) {
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r.HandleFunc("/cdps", getCdpsHandlerFn(cliCtx)).Methods("GET")
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r.HandleFunc("/cdps/params", getParamsHandlerFn(cliCtx)).Methods("GET")
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}
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func getCdpsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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// get parameters from the URL
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ownerBech32 := r.URL.Query().Get(types.RestOwner)
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collateralDenom := r.URL.Query().Get(types.RestCollateralDenom)
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priceString := r.URL.Query().Get(types.RestUnderCollateralizedAt)
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// Construct querier params
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querierParams := types.QueryCdpsParams{}
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if len(ownerBech32) != 0 {
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owner, err := sdk.AccAddressFromBech32(ownerBech32)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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querierParams.Owner = owner
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}
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if len(collateralDenom) != 0 {
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// TODO validate denom
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querierParams.CollateralDenom = collateralDenom
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}
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if len(priceString) != 0 {
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price, err := sdk.NewDecFromStr(priceString)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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querierParams.UnderCollateralizedAt = price
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}
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querierParamsBz, err := cliCtx.Codec.MarshalJSON(querierParams)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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// Get the CDPs
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res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetCdps), querierParamsBz)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
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return
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}
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cliCtx = cliCtx.WithHeight(height)
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rest.PostProcessResponse(w, cliCtx, res)
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}
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}
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func getParamsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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// Get the params
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res, height, err := cliCtx.QueryWithData(fmt.Sprintf("custom/cdp/%s", types.QueryGetParams), nil)
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cliCtx = cliCtx.WithHeight(height)
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if err != nil {
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rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
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return
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}
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// Return the params
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rest.PostProcessResponse(w, cliCtx, res)
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}
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}
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