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grpc_query.go
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/
grpc_query.go
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package keeper
import (
"context"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/query"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/echelonfoundation/echelon/v3/x/epochs/types"
)
var _ types.QueryServer = Keeper{}
// EpochInfos provide running epochInfos
func (k Keeper) EpochInfos(
c context.Context,
req *types.QueryEpochsInfoRequest,
) (*types.QueryEpochsInfoResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
ctx := sdk.UnwrapSDKContext(c)
var epochs []types.EpochInfo
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefixEpoch)
pageRes, err := query.Paginate(store, req.Pagination, func(_, value []byte) error {
var epoch types.EpochInfo
if err := k.cdc.Unmarshal(value, &epoch); err != nil {
return err
}
epochs = append(epochs, epoch)
return nil
})
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return &types.QueryEpochsInfoResponse{
Epochs: epochs,
Pagination: pageRes,
}, nil
}
// CurrentEpoch provides current epoch of specified identifier
func (k Keeper) CurrentEpoch(
c context.Context,
req *types.QueryCurrentEpochRequest,
) (*types.QueryCurrentEpochResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "empty request")
}
ctx := sdk.UnwrapSDKContext(c)
info, found := k.GetEpochInfo(ctx, req.Identifier)
if !found {
return nil, status.Errorf(codes.NotFound, "epoch info not found: %s", req.Identifier)
}
return &types.QueryCurrentEpochResponse{
CurrentEpoch: info.CurrentEpoch,
}, nil
}