package rest import ( "bytes" "fmt" "net/http" "github.com/cosmos/cosmos-sdk/client" "github.com/cosmos/cosmos-sdk/client/tx" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/types/rest" "github.com/gorilla/mux" "github.com/kava-labs/kava/x/cdp/types" ) func registerTxRoutes(cliCtx client.Context, r *mux.Router) { r.HandleFunc("/cdp", postCdpHandlerFn(cliCtx)).Methods("POST") r.HandleFunc("/cdp/{owner}/{collateralType}/deposits", postDepositHandlerFn(cliCtx)).Methods("POST") r.HandleFunc("/cdp/{owner}/{collateralType}/withdraw", postWithdrawHandlerFn(cliCtx)).Methods("POST") r.HandleFunc("/cdp/{owner}/{collateralType}/draw", postDrawHandlerFn(cliCtx)).Methods("POST") r.HandleFunc("/cdp/{owner}/{collateralType}/repay", postRepayHandlerFn(cliCtx)).Methods("POST") r.HandleFunc("/cdp/{owner}/{collateralType}/liquidate", postLiquidateHandlerFn(cliCtx)).Methods("POST") } func postCdpHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostCdpReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } fromAddr, err := sdk.AccAddressFromBech32(baseReq.From) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } if !bytes.Equal(fromAddr, req.Sender) { rest.WriteErrorResponse(w, http.StatusUnauthorized, fmt.Sprintf("expected: %s, got: %s", fromAddr, req.Sender)) return } msg := types.NewMsgCreateCDP( req.Sender, req.Collateral, req.Principal, req.CollateralType, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } } func postDepositHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostDepositReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } msg := types.NewMsgDeposit( req.Owner, req.Depositor, req.Collateral, req.CollateralType, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } } func postWithdrawHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostWithdrawalReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } msg := types.NewMsgWithdraw( req.Owner, req.Depositor, req.Collateral, req.CollateralType, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } } func postDrawHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostDrawReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } fromAddr, err := sdk.AccAddressFromBech32(baseReq.From) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } if !bytes.Equal(fromAddr, req.Owner) { rest.WriteErrorResponse(w, http.StatusUnauthorized, fmt.Sprintf("expected: %s, got: %s", fromAddr, req.Owner)) return } msg := types.NewMsgDrawDebt( req.Owner, req.CollateralType, req.Principal, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } } func postRepayHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostRepayReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } fromAddr, err := sdk.AccAddressFromBech32(baseReq.From) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } if !bytes.Equal(fromAddr, req.Owner) { rest.WriteErrorResponse(w, http.StatusUnauthorized, fmt.Sprintf("expected: %s, got: %s", fromAddr, req.Owner)) return } msg := types.NewMsgRepayDebt( req.Owner, req.CollateralType, req.Payment, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } } func postLiquidateHandlerFn(cliCtx client.Context) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { var req PostLiquidateReq if !rest.ReadRESTReq(w, r, cliCtx.LegacyAmino, &req) { rest.WriteErrorResponse(w, http.StatusBadRequest, "failed to parse request") return } baseReq := req.BaseReq.Sanitize() if !baseReq.ValidateBasic(w) { return } fromAddr, err := sdk.AccAddressFromBech32(baseReq.From) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } msg := types.NewMsgLiquidate( fromAddr, req.Owner, req.CollateralType, ) if err := msg.ValidateBasic(); err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } tx.WriteGeneratedTxResponse(cliCtx, w, baseReq, &msg) } }