/
grpc_query.go
109 lines (82 loc) · 2.93 KB
/
grpc_query.go
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package keeper
import (
"context"
"fmt"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/query"
gogotypes "github.com/gogo/protobuf/types"
"github.com/nephirim/go-incubus/x/fantoken/types"
)
var _ types.QueryServer = Keeper{}
func (k Keeper) FanToken(c context.Context, req *types.QueryFanTokenRequest) (*types.QueryFanTokenResponse, error) {
ctx := sdk.UnwrapSDKContext(c)
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
if len(req.Denom) == 0 {
return nil, sdkerrors.Wrap(sdkerrors.ErrInvalidRequest, "empty denom")
}
fantoken, err := k.GetFanToken(ctx, req.Denom)
if err != nil {
return nil, status.Errorf(codes.NotFound, "fan token %s not found", req.Denom)
}
return &types.QueryFanTokenResponse{Fantoken: fantoken}, nil
}
func (k Keeper) FanTokens(c context.Context, req *types.QueryFanTokensRequest) (*types.QueryFanTokensResponse, error) {
ctx := sdk.UnwrapSDKContext(c)
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, "empty request")
}
var owner sdk.AccAddress
var err error
if len(req.Authority) > 0 {
owner, err = sdk.AccAddressFromBech32(req.Authority)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, fmt.Sprintf("invalid authority address (%s)", err))
}
}
var fantokens []*types.FanToken
var pageRes *query.PageResponse
store := ctx.KVStore(k.storeKey)
if owner == nil {
fantokenStore := prefix.NewStore(store, types.PrefixFanTokenForDenom)
pageRes, err = query.Paginate(fantokenStore, req.Pagination, func(key []byte, value []byte) error {
var fantoken types.FanToken
k.cdc.MustUnmarshal(value, &fantoken)
fantokens = append(fantokens, &fantoken)
return nil
})
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "paginate: %v", err)
}
} else {
fantokenStore := prefix.NewStore(store, types.KeyFanTokens(owner, ""))
pageRes, err = query.Paginate(fantokenStore, req.Pagination, func(key []byte, value []byte) error {
var denom gogotypes.StringValue
k.cdc.MustUnmarshal(value, &denom)
fantoken, err := k.GetFanToken(ctx, denom.Value)
if err == nil {
fantokens = append(fantokens, fantoken)
}
return nil
})
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "paginate: %v", err)
}
}
var result []*types.FanToken
for _, fantoken := range fantokens {
result = append(result, fantoken)
}
return &types.QueryFanTokensResponse{Fantokens: result, Pagination: pageRes}, nil
}
// Params return the all the parameter in fantoken module
func (k Keeper) Params(c context.Context, req *types.QueryParamsRequest) (*types.QueryParamsResponse, error) {
ctx := sdk.UnwrapSDKContext(c)
params := k.GetParamSet(ctx)
return &types.QueryParamsResponse{Params: params}, nil
}