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query_parser.go
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query_parser.go
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package cosmwasm
import (
"encoding/json"
"cosmossdk.io/errors"
"github.com/CosmWasm/wasmd/x/wasm"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
poststypes "github.com/desmos-labs/desmos/v5/x/posts/types"
profiletypes "github.com/desmos-labs/desmos/v5/x/profiles/types"
reactionstypes "github.com/desmos-labs/desmos/v5/x/reactions/types"
relationshipstypes "github.com/desmos-labs/desmos/v5/x/relationships/types"
reportstypes "github.com/desmos-labs/desmos/v5/x/reports/types"
subspacestypes "github.com/desmos-labs/desmos/v5/x/subspaces/types"
)
type Querier interface {
QueryCustom(ctx sdk.Context, data json.RawMessage) ([]byte, error)
}
type QuerierRouter struct {
Queriers map[string]Querier
}
func NewQuerier(queriers map[string]Querier) QuerierRouter {
return QuerierRouter{
Queriers: queriers,
}
}
type CustomQuery struct {
Profiles *json.RawMessage `json:"profiles"`
Subspaces *json.RawMessage `json:"subspaces"`
Relationships *json.RawMessage `json:"relationships"`
Posts *json.RawMessage `json:"posts"`
Reports *json.RawMessage `json:"reports"`
Reactions *json.RawMessage `json:"reactions"`
}
const (
QueryRouteProfiles = profiletypes.ModuleName
QueryRouteSubspaces = subspacestypes.ModuleName
QueryRouteRelationships = relationshipstypes.ModuleName
QueryRoutePosts = poststypes.ModuleName
QueryRouteReports = reportstypes.ModuleName
QueryRouteReactions = reactionstypes.ModuleName
)
func (q QuerierRouter) QueryCustom(ctx sdk.Context, data json.RawMessage) ([]byte, error) {
var customQuery CustomQuery
err := json.Unmarshal(data, &customQuery)
if err != nil {
return nil, errors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error())
}
// get route and query from data
var route string
var query json.RawMessage
switch {
case customQuery.Profiles != nil:
route = QueryRouteProfiles
query = *customQuery.Profiles
case customQuery.Subspaces != nil:
route = QueryRouteSubspaces
query = *customQuery.Subspaces
case customQuery.Relationships != nil:
route = QueryRouteRelationships
query = *customQuery.Relationships
case customQuery.Posts != nil:
route = QueryRoutePosts
query = *customQuery.Posts
case customQuery.Reports != nil:
route = QueryRouteReports
query = *customQuery.Reports
case customQuery.Reactions != nil:
route = QueryRouteReactions
query = *customQuery.Reactions
}
if querier, ok := q.Queriers[route]; ok {
return querier.QueryCustom(ctx, query)
}
return nil, errors.Wrap(wasm.ErrQueryFailed, "unimplemented route")
}