156 lines
4.2 KiB
Go
156 lines
4.2 KiB
Go
package rest
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import (
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"github.com/gorilla/mux"
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"github.com/cosmos/cosmos-sdk/client"
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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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authclient "github.com/cosmos/cosmos-sdk/x/auth/client"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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genutilrest "github.com/cosmos/cosmos-sdk/x/genutil/client/rest"
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)
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// query accountREST Handler
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func QueryAccountRequestHandlerFn(storeName string, clientCtx client.Context) 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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bech32addr := vars["address"]
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addr, err := sdk.AccAddressFromBech32(bech32addr)
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if rest.CheckInternalServerError(w, err) {
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return
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}
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clientCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, clientCtx, r)
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if !ok {
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return
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}
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accGetter := types.NewAccountRetriever(authclient.Codec)
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account, height, err := accGetter.GetAccountWithHeight(clientCtx, addr)
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if err != nil {
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// TODO: Handle more appropriately based on the error type.
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// Ref: https://github.com/cosmos/cosmos-sdk/issues/4923
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if err := accGetter.EnsureExists(clientCtx, addr); err != nil {
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clientCtx = clientCtx.WithHeight(height)
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rest.PostProcessResponse(w, clientCtx, types.BaseAccount{})
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return
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}
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rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
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return
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}
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clientCtx = clientCtx.WithHeight(height)
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rest.PostProcessResponse(w, clientCtx, account)
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}
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}
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// QueryTxsHandlerFn implements a REST handler that searches for transactions.
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// Genesis transactions are returned if the height parameter is set to zero,
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// otherwise the transactions are searched for by events.
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func QueryTxsRequestHandlerFn(clientCtx client.Context) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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err := r.ParseForm()
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if err != nil {
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rest.WriteErrorResponse(
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w, http.StatusBadRequest,
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fmt.Sprintf("failed to parse query parameters: %s", err),
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)
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return
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}
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// if the height query param is set to zero, query for genesis transactions
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heightStr := r.FormValue("height")
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if heightStr != "" {
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if height, err := strconv.ParseInt(heightStr, 10, 64); err == nil && height == 0 {
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genutilrest.QueryGenesisTxs(clientCtx, w)
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return
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}
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}
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var (
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events []string
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txs []sdk.TxResponse
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page, limit int
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)
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clientCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, clientCtx, r)
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if !ok {
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return
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}
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if len(r.Form) == 0 {
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rest.PostProcessResponseBare(w, clientCtx, txs)
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return
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}
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events, page, limit, err = rest.ParseHTTPArgs(r)
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if rest.CheckBadRequestError(w, err) {
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return
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}
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searchResult, err := authclient.QueryTxsByEvents(clientCtx, events, page, limit, "")
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if rest.CheckInternalServerError(w, err) {
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return
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}
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rest.PostProcessResponseBare(w, clientCtx, searchResult)
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}
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}
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// QueryTxRequestHandlerFn implements a REST handler that queries a transaction
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// by hash in a committed block.
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func QueryTxRequestHandlerFn(clientCtx client.Context) 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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hashHexStr := vars["hash"]
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clientCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, clientCtx, r)
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if !ok {
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return
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}
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output, err := authclient.QueryTx(clientCtx, hashHexStr)
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if err != nil {
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if strings.Contains(err.Error(), hashHexStr) {
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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.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
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return
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}
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if output.Empty() {
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rest.WriteErrorResponse(w, http.StatusNotFound, fmt.Sprintf("no transaction found with hash %s", hashHexStr))
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}
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rest.PostProcessResponseBare(w, clientCtx, output)
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}
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}
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func queryParamsHandler(clientCtx client.Context) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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clientCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, clientCtx, r)
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if !ok {
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return
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}
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route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryParams)
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res, height, err := clientCtx.QueryWithData(route, nil)
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if rest.CheckInternalServerError(w, err) {
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return
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}
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clientCtx = clientCtx.WithHeight(height)
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rest.PostProcessResponse(w, clientCtx, res)
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}
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}
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