608 lines
18 KiB
Go
608 lines
18 KiB
Go
package rest
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import (
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"errors"
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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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clientrest "github.com/cosmos/cosmos-sdk/client/rest"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/types/rest"
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"github.com/cosmos/cosmos-sdk/x/gov"
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gcutils "github.com/cosmos/cosmos-sdk/x/gov/client/utils"
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govClientUtils "github.com/cosmos/cosmos-sdk/x/gov/client/utils"
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)
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// REST Variable names
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// nolint
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const (
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RestParamsType = "type"
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RestProposalID = "proposal-id"
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RestDepositor = "depositor"
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RestVoter = "voter"
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RestProposalStatus = "status"
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RestNumLimit = "limit"
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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 RegisterRoutes(cliCtx context.CLIContext, r *mux.Router, cdc *codec.Codec) {
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r.HandleFunc("/gov/proposals", postProposalHandlerFn(cdc, cliCtx)).Methods("POST")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/deposits", RestProposalID), depositHandlerFn(cdc, cliCtx)).Methods("POST")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/votes", RestProposalID), voteHandlerFn(cdc, cliCtx)).Methods("POST")
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r.HandleFunc(
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fmt.Sprintf("/gov/parameters/{%s}", RestParamsType),
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queryParamsHandlerFn(cdc, cliCtx),
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).Methods("GET")
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r.HandleFunc("/gov/proposals", queryProposalsWithParameterFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}", RestProposalID), queryProposalHandlerFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(
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fmt.Sprintf("/gov/proposals/{%s}/proposer", RestProposalID),
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queryProposerHandlerFn(cdc, cliCtx),
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).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/deposits", RestProposalID), queryDepositsHandlerFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/deposits/{%s}", RestProposalID, RestDepositor), queryDepositHandlerFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/tally", RestProposalID), queryTallyOnProposalHandlerFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/votes", RestProposalID), queryVotesOnProposalHandlerFn(cdc, cliCtx)).Methods("GET")
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r.HandleFunc(fmt.Sprintf("/gov/proposals/{%s}/votes/{%s}", RestProposalID, RestVoter), queryVoteHandlerFn(cdc, cliCtx)).Methods("GET")
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}
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// PostProposalReq defines the properties of a proposal request's body.
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type PostProposalReq struct {
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BaseReq rest.BaseReq `json:"base_req"`
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Title string `json:"title"` // Title of the proposal
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Description string `json:"description"` // Description of the proposal
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ProposalType string `json:"proposal_type"` // Type of proposal. Initial set {PlainTextProposal, SoftwareUpgradeProposal}
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Proposer sdk.AccAddress `json:"proposer"` // Address of the proposer
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InitialDeposit sdk.Coins `json:"initial_deposit"` // Coins to add to the proposal's deposit
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}
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// DepositReq defines the properties of a deposit request's body.
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type DepositReq struct {
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BaseReq rest.BaseReq `json:"base_req"`
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Depositor sdk.AccAddress `json:"depositor"` // Address of the depositor
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Amount sdk.Coins `json:"amount"` // Coins to add to the proposal's deposit
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}
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// VoteReq defines the properties of a vote request's body.
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type VoteReq struct {
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BaseReq rest.BaseReq `json:"base_req"`
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Voter sdk.AccAddress `json:"voter"` // address of the voter
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Option string `json:"option"` // option from OptionSet chosen by the voter
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}
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func postProposalHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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var req PostProposalReq
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if !rest.ReadRESTReq(w, r, cdc, &req) {
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return
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}
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req.BaseReq = req.BaseReq.Sanitize()
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if !req.BaseReq.ValidateBasic(w) {
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return
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}
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proposalType, err := gov.ProposalTypeFromString(govClientUtils.NormalizeProposalType(req.ProposalType))
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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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// create the message
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msg := gov.NewMsgSubmitProposal(req.Title, req.Description, proposalType, req.Proposer, req.InitialDeposit)
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if err := msg.ValidateBasic(); 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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clientrest.WriteGenerateStdTxResponse(w, cdc, cliCtx, req.BaseReq, []sdk.Msg{msg})
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}
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}
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func depositHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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var req DepositReq
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if !rest.ReadRESTReq(w, r, cdc, &req) {
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return
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}
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req.BaseReq = req.BaseReq.Sanitize()
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if !req.BaseReq.ValidateBasic(w) {
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return
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}
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// create the message
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msg := gov.NewMsgDeposit(req.Depositor, proposalID, req.Amount)
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if err := msg.ValidateBasic(); 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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clientrest.WriteGenerateStdTxResponse(w, cdc, cliCtx, req.BaseReq, []sdk.Msg{msg})
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}
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}
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func voteHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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var req VoteReq
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if !rest.ReadRESTReq(w, r, cdc, &req) {
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return
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}
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req.BaseReq = req.BaseReq.Sanitize()
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if !req.BaseReq.ValidateBasic(w) {
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return
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}
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voteOption, err := gov.VoteOptionFromString(govClientUtils.NormalizeVoteOption(req.Option))
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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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// create the message
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msg := gov.NewMsgVote(req.Voter, proposalID, voteOption)
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if err := msg.ValidateBasic(); 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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clientrest.WriteGenerateStdTxResponse(w, cdc, cliCtx, req.BaseReq, []sdk.Msg{msg})
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}
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}
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func queryParamsHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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paramType := vars[RestParamsType]
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res, err := cliCtx.QueryWithData(fmt.Sprintf("custom/gov/%s/%s", gov.QueryParams, paramType), nil)
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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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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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func queryProposalHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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params := gov.NewQueryProposalParams(proposalID)
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bz, err := cdc.MarshalJSON(params)
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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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res, err := cliCtx.QueryWithData("custom/gov/proposal", bz)
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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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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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func queryDepositsHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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params := gov.NewQueryProposalParams(proposalID)
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bz, err := cdc.MarshalJSON(params)
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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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res, err := cliCtx.QueryWithData("custom/gov/proposal", bz)
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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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var proposal gov.Proposal
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if err := cdc.UnmarshalJSON(res, &proposal); 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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// For inactive proposals we must query the txs directly to get the deposits
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// as they're no longer in state.
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propStatus := proposal.Status
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if !(propStatus == gov.StatusVotingPeriod || propStatus == gov.StatusDepositPeriod) {
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res, err = gcutils.QueryDepositsByTxQuery(cdc, cliCtx, params)
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} else {
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res, err = cliCtx.QueryWithData("custom/gov/deposits", bz)
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}
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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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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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func queryProposerHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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res, err := gcutils.QueryProposerByTxQuery(cdc, cliCtx, proposalID)
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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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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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func queryDepositHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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bechDepositorAddr := vars[RestDepositor]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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if len(bechDepositorAddr) == 0 {
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err := errors.New("depositor address required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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depositorAddr, err := sdk.AccAddressFromBech32(bechDepositorAddr)
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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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params := gov.NewQueryDepositParams(proposalID, depositorAddr)
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bz, err := cdc.MarshalJSON(params)
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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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res, err := cliCtx.QueryWithData("custom/gov/deposit", bz)
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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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var deposit gov.Deposit
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if err := cdc.UnmarshalJSON(res, &deposit); 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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// For an empty deposit, either the proposal does not exist or is inactive in
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// which case the deposit would be removed from state and should be queried
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// for directly via a txs query.
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if deposit.Empty() {
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bz, err := cdc.MarshalJSON(gov.NewQueryProposalParams(proposalID))
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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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res, err = cliCtx.QueryWithData("custom/gov/proposal", bz)
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if err != nil || len(res) == 0 {
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err := fmt.Errorf("proposalID %d does not exist", proposalID)
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rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
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return
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}
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res, err = gcutils.QueryDepositByTxQuery(cdc, cliCtx, params)
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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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}
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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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func queryVoteHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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bechVoterAddr := vars[RestVoter]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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if len(bechVoterAddr) == 0 {
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err := errors.New("voter address required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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voterAddr, err := sdk.AccAddressFromBech32(bechVoterAddr)
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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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params := gov.NewQueryVoteParams(proposalID, voterAddr)
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bz, err := cdc.MarshalJSON(params)
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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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res, err := cliCtx.QueryWithData("custom/gov/vote", bz)
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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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var vote gov.Vote
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if err := cdc.UnmarshalJSON(res, &vote); 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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// For an empty vote, either the proposal does not exist or is inactive in
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// which case the vote would be removed from state and should be queried for
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// directly via a txs query.
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if vote.Empty() {
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bz, err := cdc.MarshalJSON(gov.NewQueryProposalParams(proposalID))
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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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res, err = cliCtx.QueryWithData("custom/gov/proposal", bz)
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if err != nil || len(res) == 0 {
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err := fmt.Errorf("proposalID %d does not exist", proposalID)
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rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
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return
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}
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res, err = gcutils.QueryVoteByTxQuery(cdc, cliCtx, params)
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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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}
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rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
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}
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}
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// todo: Split this functionality into helper functions to remove the above
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func queryVotesOnProposalHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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strProposalID := vars[RestProposalID]
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if len(strProposalID) == 0 {
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err := errors.New("proposalId required but not specified")
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rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
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return
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}
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proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
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if !ok {
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return
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}
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params := gov.NewQueryProposalParams(proposalID)
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bz, err := cdc.MarshalJSON(params)
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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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res, err := cliCtx.QueryWithData("custom/gov/proposal", bz)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
var proposal gov.Proposal
|
|
if err := cdc.UnmarshalJSON(res, &proposal); err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
// For inactive proposals we must query the txs directly to get the votes
|
|
// as they're no longer in state.
|
|
propStatus := proposal.Status
|
|
if !(propStatus == gov.StatusVotingPeriod || propStatus == gov.StatusDepositPeriod) {
|
|
res, err = gcutils.QueryVotesByTxQuery(cdc, cliCtx, params)
|
|
} else {
|
|
res, err = cliCtx.QueryWithData("custom/gov/votes", bz)
|
|
}
|
|
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
|
|
}
|
|
}
|
|
|
|
// todo: Split this functionality into helper functions to remove the above
|
|
func queryProposalsWithParameterFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
bechVoterAddr := r.URL.Query().Get(RestVoter)
|
|
bechDepositorAddr := r.URL.Query().Get(RestDepositor)
|
|
strProposalStatus := r.URL.Query().Get(RestProposalStatus)
|
|
strNumLimit := r.URL.Query().Get(RestNumLimit)
|
|
|
|
params := gov.QueryProposalsParams{}
|
|
|
|
if len(bechVoterAddr) != 0 {
|
|
voterAddr, err := sdk.AccAddressFromBech32(bechVoterAddr)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
params.Voter = voterAddr
|
|
}
|
|
|
|
if len(bechDepositorAddr) != 0 {
|
|
depositorAddr, err := sdk.AccAddressFromBech32(bechDepositorAddr)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
params.Depositor = depositorAddr
|
|
}
|
|
|
|
if len(strProposalStatus) != 0 {
|
|
proposalStatus, err := gov.ProposalStatusFromString(govClientUtils.NormalizeProposalStatus(strProposalStatus))
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
params.ProposalStatus = proposalStatus
|
|
}
|
|
if len(strNumLimit) != 0 {
|
|
numLimit, ok := rest.ParseUint64OrReturnBadRequest(w, strNumLimit)
|
|
if !ok {
|
|
return
|
|
}
|
|
params.Limit = numLimit
|
|
}
|
|
|
|
bz, err := cdc.MarshalJSON(params)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
|
|
res, err := cliCtx.QueryWithData("custom/gov/proposals", bz)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
|
|
}
|
|
}
|
|
|
|
// todo: Split this functionality into helper functions to remove the above
|
|
func queryTallyOnProposalHandlerFn(cdc *codec.Codec, cliCtx context.CLIContext) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
vars := mux.Vars(r)
|
|
strProposalID := vars[RestProposalID]
|
|
|
|
if len(strProposalID) == 0 {
|
|
err := errors.New("proposalId required but not specified")
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
|
|
proposalID, ok := rest.ParseUint64OrReturnBadRequest(w, strProposalID)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
params := gov.NewQueryProposalParams(proposalID)
|
|
|
|
bz, err := cdc.MarshalJSON(params)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
|
|
return
|
|
}
|
|
|
|
res, err := cliCtx.QueryWithData("custom/gov/tally", bz)
|
|
if err != nil {
|
|
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
|
|
return
|
|
}
|
|
|
|
rest.PostProcessResponse(w, cdc, res, cliCtx.Indent)
|
|
}
|
|
}
|