mesg-foundation/core

package keeper

import (
    sdk "github.com/cosmos/cosmos-sdk/types"
    sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
    "github.com/mesg-foundation/engine/x/ownership/internal/types"
    abci "github.com/tendermint/tendermint/abci/types"
)

// NewQuerier creates a new querier for ownership clients.
func NewQuerier(k Keeper) sdk.Querier {
    return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, error) {
        switch path[0] {
        case types.QueryList:
            return list(ctx, k)
        default:
            return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, "unknown ownership query endpoint")
        }
    }
}

func list(ctx sdk.Context, k Keeper) ([]byte, error) {
    ownerships, err := k.List(ctx)
    if err != nil {
        return nil, err
    }

    res, err := types.ModuleCdc.MarshalJSON(ownerships)
    if err != nil {
        return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error())
    }
    return res, nil
}