gql/cerc-io/laconicd/schema.graphql

@@ -1,12 +1,5 @@
 # Reference to another record.
-type Reference {
+scalar Link
-  id: String! # ID of linked record.
-}
-
-# Reference to another record.
-input ReferenceInput {
-  id: String!
-}
 
 # Bonds contain funds that are used to pay rent on record registration and renewal.
 type Bond {
@@ -37,44 +30,71 @@ type Account {
   balance: [Coin!] # Current balance for each coin type.
 }
 
-# Value of a given type.
+# Value describes a DAG-JSON compatible value.
-type Value {
+union Value =
-  null: Boolean
+   BooleanValue
+ | IntValue
+ | FloatValue
+ | StringValue
+ | BytesValue
+ | LinkValue
+ | ArrayValue
+ | MapValue
 
-  int: Int
+type BooleanValue {
-  float: Float
+  value: Boolean!
-  string: String
-  boolean: Boolean
-  json: String
-
-  reference: Reference
-
-  values: [Value]
 }
-# Value of a given type used as input to queries.
-input ValueInput {
-  null: Boolean
 
-  int: Int
+type IntValue {
-  float: Float
+  value: Int!
-  string: String
+}
-  boolean: Boolean
 
-  reference: ReferenceInput
+type FloatValue {
+  value: Float!
+}
 
-  values: [ValueInput]
+type StringValue {
+  value: String!
+}
+
+type BytesValue {
+  value: String!
+}
+
+type ArrayValue {
+  value: [Value]!
+}
+
+type LinkValue {
+  value: Link!
+}
+
+type MapValue {
+  value: [Attribute!]!
 }
 
 # Key/value pair.
-type KeyValue {
+type Attribute {
   key: String!
-  value: Value!
+  value: Value
+}
+
+# Value of a given type used as input to queries.
+# Note: GQL doesn't allow union input types.
+input ValueInput {
+  int: Int
+  float: Float
+  string: String
+  boolean: Boolean
+  link: Link
+  array: [ValueInput]
+  map: [KeyValueInput!]
 }
 
 # Key/value pair for inputs.
 input KeyValueInput {
   key: String!
-  value: ValueInput!
+  value: ValueInput
 }
 
 # Status information about a node (https://docs.tendermint.com/master/rpc/#/Info/status).
@@ -155,7 +175,7 @@ type Record {
   createTime: String! # Record create time.
   expiryTime: String! # Record expiry time.
   owners: [String!] # Addresses of record owners.
-  attributes: [KeyValue] # Record attributes.
+  attributes: [Attribute!] # Record attributes.
   references: [Record] # Record references.
 }
 
@@ -195,7 +215,7 @@ type Query {
   getBondsByIds(ids: [String!]): [Bond]
 
   # Query bonds.
-  queryBonds(attributes: [KeyValueInput]): [Bond]
+  queryBonds(attributes: [KeyValueInput!]): [Bond]
 
   # Query bonds by owner.
   queryBondsByOwner(ownerAddresses: [String!]): [OwnerBonds]
@@ -210,7 +230,7 @@ type Query {
   # Query records.
   queryRecords(
     # Multiple attribute conditions are in a logical AND.
-    attributes: [KeyValueInput]
+    attributes: [KeyValueInput!]
 
     # Whether to query all records, not just named ones (false by default).
     all: Boolean

gql/gqlgen.yml

@@ -1,5 +1,3 @@
-# .gqlgen.yml example
-#
 # Refer to https://gqlgen.com/config/
 # for detailed .gqlgen.yml documentation.
 
@@ -12,3 +10,8 @@ model:
 resolver:
   filename: resolver.go
   type: Resolver
+
+models:
+  Link:
+    model:
+      - github.com/cerc-io/laconicd/gql.Link

gql/models_gen.go

@@ -2,6 +2,10 @@
 
 package gql
 
+type Value interface {
+	IsValue()
+}
+
 type Account struct {
 	Address  string  `json:"address"`
 	PubKey   *string `json:"pubKey"`
@@ -10,6 +14,17 @@ type Account struct {
 	Balance  []*Coin `json:"balance"`
 }
 
+type ArrayValue struct {
+	Value []Value `json:"value"`
+}
+
+func (ArrayValue) IsValue() {}
+
+type Attribute struct {
+	Key   string `json:"key"`
+	Value Value  `json:"value"`
+}
+
 type Auction struct {
 	ID             string        `json:"id"`
 	Status         string        `json:"status"`
@@ -53,21 +68,52 @@ type Bond struct {
 	Balance []*Coin `json:"balance"`
 }
 
+type BooleanValue struct {
+	Value bool `json:"value"`
+}
+
+func (BooleanValue) IsValue() {}
+
+type BytesValue struct {
+	Value string `json:"value"`
+}
+
+func (BytesValue) IsValue() {}
+
 type Coin struct {
 	Type     string `json:"type"`
 	Quantity string `json:"quantity"`
 }
 
-type KeyValue struct {
+type FloatValue struct {
-	Key   string `json:"key"`
+	Value float64 `json:"value"`
-	Value *Value `json:"value"`
 }
 
+func (FloatValue) IsValue() {}
+
+type IntValue struct {
+	Value int `json:"value"`
+}
+
+func (IntValue) IsValue() {}
+
 type KeyValueInput struct {
 	Key   string      `json:"key"`
 	Value *ValueInput `json:"value"`
 }
 
+type LinkValue struct {
+	Value Link `json:"value"`
+}
+
+func (LinkValue) IsValue() {}
+
+type MapValue struct {
+	Value []*Attribute `json:"value"`
+}
+
+func (MapValue) IsValue() {}
+
 type NameRecord struct {
 	Latest  *NameRecordEntry   `json:"latest"`
 	History []*NameRecordEntry `json:"history"`
@@ -102,18 +148,10 @@ type Record struct {
 	CreateTime string       `json:"createTime"`
 	ExpiryTime string       `json:"expiryTime"`
 	Owners     []string     `json:"owners"`
-	Attributes []*KeyValue `json:"attributes"`
+	Attributes []*Attribute `json:"attributes"`
 	References []*Record    `json:"references"`
 }
 
-type Reference struct {
-	ID string `json:"id"`
-}
-
-type ReferenceInput struct {
-	ID string `json:"id"`
-}
-
 type Status struct {
 	Version    string           `json:"version"`
 	Node       *NodeInfo        `json:"node"`
@@ -125,6 +163,12 @@ type Status struct {
 	DiskUsage  string           `json:"disk_usage"`
 }
 
+type StringValue struct {
+	Value string `json:"value"`
+}
+
+func (StringValue) IsValue() {}
+
 type SyncInfo struct {
 	LatestBlockHash   string `json:"latest_block_hash"`
 	LatestBlockHeight string `json:"latest_block_height"`
@@ -138,23 +182,12 @@ type ValidatorInfo struct {
 	ProposerPriority *string `json:"proposer_priority"`
 }
 
-type Value struct {
-	Null      *bool      `json:"null"`
-	Int       *int       `json:"int"`
-	Float     *float64   `json:"float"`
-	String    *string    `json:"string"`
-	Boolean   *bool      `json:"boolean"`
-	JSON      *string    `json:"json"`
-	Reference *Reference `json:"reference"`
-	Values    []*Value   `json:"values"`
-}
-
 type ValueInput struct {
-	Null      *bool           `json:"null"`
 	Int     *int             `json:"int"`
 	Float   *float64         `json:"float"`
 	String  *string          `json:"string"`
 	Boolean *bool            `json:"boolean"`
-	Reference *ReferenceInput `json:"reference"`
+	Link    *Link            `json:"link"`
-	Values    []*ValueInput   `json:"values"`
+	Array   []*ValueInput    `json:"array"`
+	Map     []*KeyValueInput `json:"map"`
 }

gql/resolver.go

@@ -121,7 +121,7 @@ func (q queryResolver) QueryRecords(ctx context.Context, attributes []*KeyValueI
 	res, err := nsQueryClient.ListRecords(
 		context.Background(),
 		&registrytypes.QueryListRecordsRequest{
-			Attributes: parseRequestAttributes(attributes),
+			Attributes: toRPCAttributes(attributes),
 			All:        (all != nil && *all),
 		},
 	)

gql/scalar.go

@@ -0,0 +1,33 @@
+package gql
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+)
+
+// Represents an IPLD link. Links are generally but not necessarily implemented as CIDs
+type Link string
+
+func (l Link) String() string {
+	return string(l)
+}
+
+// UnmarshalGQLContext implements the graphql.ContextUnmarshaler interface
+func (l *Link) UnmarshalGQLContext(_ context.Context, v interface{}) error {
+	s, ok := v.(string)
+	if !ok {
+		return fmt.Errorf("Link must be a string")
+	}
+	*l = Link(s)
+	return nil
+}
+
+// MarshalGQLContext implements the graphql.ContextMarshaler interface
+func (l Link) MarshalGQLContext(_ context.Context, w io.Writer) error {
+	encodable := map[string]string{
+		"/": l.String(),
+	}
+	return json.NewEncoder(w).Encode(encodable)
+}

gql/util.go

@@ -2,15 +2,15 @@ package gql
 
 import (
 	"context"
-	"encoding/json"
+	"fmt" // #nosec G702
-	"fmt"
-	"reflect" // #nosec G702
 	"strconv"
 
 	auctiontypes "github.com/cerc-io/laconicd/x/auction/types"
 	bondtypes "github.com/cerc-io/laconicd/x/bond/types"
 	registrytypes "github.com/cerc-io/laconicd/x/registry/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/ipld/go-ipld-prime"
+	"github.com/ipld/go-ipld-prime/codec/dagjson"
 )
 
 // OwnerAttributeName denotes the owner attribute name for a bond.
@@ -61,13 +61,21 @@ func getGQLRecord(ctx context.Context, resolver QueryResolver, record registryty
 		return nil, nil
 	}
 
-	recordType := record.ToReadableRecord()
+	node, err := ipld.Decode(record.Attributes, dagjson.Decode)
-	attributes, err := getAttributes(&recordType)
+	if err != nil {
+		return nil, err
+	}
+	if node.Kind() != ipld.Kind_Map {
+		return nil, fmt.Errorf("invalid record attributes")
+	}
+
+	var links []string
+	attributes, err := resolveIPLDNode(node, &links)
 	if err != nil {
 		return nil, err
 	}
 
-	references, err := getReferences(ctx, resolver, &recordType)
+	references, err := resolver.GetRecordsByIds(ctx, links)
 	if err != nil {
 		return nil, err
 	}
@@ -79,11 +87,96 @@ func getGQLRecord(ctx context.Context, resolver QueryResolver, record registryty
 		ExpiryTime: record.GetExpiryTime(),
 		Owners:     record.GetOwners(),
 		Names:      record.GetNames(),
-		Attributes: attributes,
+		Attributes: attributes.(MapValue).Value,
 		References: references,
 	}, nil
 }
 
+func resolveIPLDNode(node ipld.Node, links *[]string) (Value, error) {
+	switch node.Kind() {
+	case ipld.Kind_Map:
+		var entries []*Attribute
+		for itr := node.MapIterator(); !itr.Done(); {
+			k, v, err := itr.Next()
+			if err != nil {
+				return nil, err
+			}
+			if k.Kind() != ipld.Kind_String {
+				return nil, fmt.Errorf("invalid record attribute key type: %s", k.Kind())
+			}
+			s, err := k.AsString()
+			if err != nil {
+				return nil, err
+			}
+			val, err := resolveIPLDNode(v, links)
+			if err != nil {
+				return nil, err
+			}
+			entries = append(entries, &Attribute{
+				Key:   s,
+				Value: val,
+			})
+		}
+		return MapValue{entries}, nil
+	case ipld.Kind_List:
+		var values []Value
+		for itr := node.ListIterator(); !itr.Done(); {
+			_, v, err := itr.Next()
+			if err != nil {
+				return nil, err
+			}
+			val, err := resolveIPLDNode(v, links)
+			if err != nil {
+				return nil, err
+			}
+			values = append(values, val)
+		}
+		return ArrayValue{values}, nil
+	case ipld.Kind_Null:
+		return nil, nil
+	case ipld.Kind_Bool:
+		val, err := node.AsBool()
+		if err != nil {
+			return nil, err
+		}
+		return BooleanValue{val}, nil
+	case ipld.Kind_Int:
+		val, err := node.AsInt()
+		if err != nil {
+			return nil, err
+		}
+		// TODO: handle bigger ints
+		return IntValue{int(val)}, nil
+	case ipld.Kind_Float:
+		val, err := node.AsFloat()
+		if err != nil {
+			return nil, err
+		}
+		return FloatValue{val}, nil
+	case ipld.Kind_String:
+		val, err := node.AsString()
+		if err != nil {
+			return nil, err
+		}
+		return StringValue{val}, nil
+	case ipld.Kind_Bytes:
+		val, err := node.AsBytes()
+		if err != nil {
+			return nil, err
+		}
+		return BytesValue{string(val)}, nil
+	case ipld.Kind_Link:
+		val, err := node.AsLink()
+		if err != nil {
+			return nil, err
+		}
+		*links = append(*links, val.String())
+		return LinkValue{Link(val.String())}, nil
+	default:
+		return nil, fmt.Errorf("invalid node kind")
+	}
+}
+
 func getGQLNameRecord(record *registrytypes.NameRecord) (*NameRecord, error) {
 	if record == nil {
 		return nil, fmt.Errorf("got nil record")
@@ -163,136 +256,47 @@ func GetGQLAuction(auction *auctiontypes.Auction, bids []*auctiontypes.Bid) (*Au
 	return &gqlAuction, nil
 }
 
-func getReferences(ctx context.Context, resolver QueryResolver, r *registrytypes.ReadableRecord) ([]*Record, error) {
+func toRPCValue(value *ValueInput) *registrytypes.QueryListRecordsRequest_ValueInput {
-	var ids []string
+	var rpcval registrytypes.QueryListRecordsRequest_ValueInput
 
-	// #nosec G705
+	switch {
-	for key := range r.Attributes {
+	case value == nil:
-		//nolint: all
+		return nil
-		switch r.Attributes[key].(type) {
+	case value.Int != nil:
-		case interface{}:
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Int{Int: int64(*value.Int)}
-			if obj, ok := r.Attributes[key].(map[string]interface{}); ok {
+	case value.Float != nil:
-				if _, ok := obj["/"]; ok && len(obj) == 1 {
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Float{Float: *value.Float}
-					if _, ok := obj["/"].(string); ok {
+	case value.String != nil:
-						ids = append(ids, obj["/"].(string))
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_String_{String_: *value.String}
+	case value.Boolean != nil:
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Boolean{Boolean: *value.Boolean}
+	case value.Link != nil:
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Link{Link: value.Link.String()}
+	case value.Array != nil:
+		var contents registrytypes.QueryListRecordsRequest_ArrayInput
+		for _, val := range value.Array {
+			contents.Values = append(contents.Values, toRPCValue(val))
 		}
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Array{Array: &contents}
+	case value.Map != nil:
+		var contents registrytypes.QueryListRecordsRequest_MapInput
+		for _, kv := range value.Map {
+			contents.Values[kv.Key] = toRPCValue(kv.Value)
 		}
+		rpcval.Value = &registrytypes.QueryListRecordsRequest_ValueInput_Map{Map: &contents}
 	}
-		}
+	return &rpcval
-	}
-
-	return resolver.GetRecordsByIds(ctx, ids)
 }
 
-func getAttributes(r *registrytypes.ReadableRecord) ([]*KeyValue, error) {
+func toRPCAttributes(attrs []*KeyValueInput) []*registrytypes.QueryListRecordsRequest_KeyValueInput {
-	return mapToKeyValuePairs(r.Attributes)
-}
-
-func mapToKeyValuePairs(attrs map[string]interface{}) ([]*KeyValue, error) {
-	kvPairs := []*KeyValue{}
-
-	trueVal := true
-	falseVal := false
-
-	// #nosec G705
-	for key, value := range attrs {
-		kvPair := &KeyValue{
-			Key:   key,
-			Value: &Value{},
-		}
-
-		switch val := value.(type) {
-		case nil:
-			kvPair.Value.Null = &trueVal
-		case int:
-			kvPair.Value.Int = &val
-		case float64:
-			kvPair.Value.Float = &val
-		case string:
-			kvPair.Value.String = &val
-		case bool:
-			kvPair.Value.Boolean = &val
-		case interface{}:
-			if obj, ok := value.(map[string]interface{}); ok {
-				if _, ok := obj["/"]; ok && len(obj) == 1 {
-					if _, ok := obj["/"].(string); ok {
-						kvPair.Value.Reference = &Reference{
-							ID: obj["/"].(string),
-						}
-					}
-				} else {
-					bytes, err := json.Marshal(obj)
-					if err != nil {
-						return nil, err
-					}
-
-					jsonStr := string(bytes)
-					kvPair.Value.JSON = &jsonStr
-				}
-			}
-		}
-
-		if kvPair.Value.Null == nil {
-			kvPair.Value.Null = &falseVal
-		}
-
-		valueType := reflect.ValueOf(value)
-		if valueType.Kind() == reflect.Slice {
-			bytes, err := json.Marshal(value)
-			if err != nil {
-				return nil, err
-			}
-
-			jsonStr := string(bytes)
-			kvPair.Value.JSON = &jsonStr
-		}
-
-		kvPairs = append(kvPairs, kvPair)
-	}
-
-	return kvPairs, nil
-}
-
-func parseRequestAttributes(attrs []*KeyValueInput) []*registrytypes.QueryListRecordsRequest_KeyValueInput {
 	kvPairs := []*registrytypes.QueryListRecordsRequest_KeyValueInput{}
 
 	for _, value := range attrs {
+		parsedValue := toRPCValue(value.Value)
 		kvPair := &registrytypes.QueryListRecordsRequest_KeyValueInput{
 			Key:   value.Key,
-			Value: &registrytypes.QueryListRecordsRequest_ValueInput{},
+			Value: parsedValue,
 		}
-
-		if value.Value.String != nil {
-			kvPair.Value.String_ = *value.Value.String
-			kvPair.Value.Type = "string"
-		}
-
-		if value.Value.Int != nil {
-			kvPair.Value.Int = int64(*value.Value.Int)
-			kvPair.Value.Type = "int"
-		}
-
-		if value.Value.Float != nil {
-			kvPair.Value.Float = *value.Value.Float
-			kvPair.Value.Type = "float"
-		}
-
-		if value.Value.Boolean != nil {
-			kvPair.Value.Boolean = *value.Value.Boolean
-			kvPair.Value.Type = "boolean"
-		}
-
-		if value.Value.Reference != nil {
-			reference := &registrytypes.QueryListRecordsRequest_ReferenceInput{
-				Id: value.Value.Reference.ID,
-			}
-
-			kvPair.Value.Reference = reference
-			kvPair.Value.Type = "reference"
-		}
-
-		// TODO: Handle arrays.
-
 		kvPairs = append(kvPairs, kvPair)
 	}
 

proto/vulcanize/registry/v1beta1/query.proto

@@ -67,17 +67,26 @@ message QueryParamsResponse {
 
 // QueryListRecordsRequest is request type for registry records list
 message QueryListRecordsRequest {
-  message ReferenceInput {
+  message LinkInput {
     string id = 1;
   }
+  message ArrayInput {
+    repeated ValueInput values = 1;
+  }
+  message MapInput {
+    map<string, ValueInput> values = 1;
+  }
   message ValueInput {
-    string type                   = 1;
+    // Type of record attribute value
-    string string                 = 2;
+    oneof value {
-    int64 int                     = 3;
+      string string    = 1;
-    double float                  = 4;
+      int64 int        = 2;
-    bool                boolean   = 5;
+      double float     = 3;
-    ReferenceInput      reference = 6;
+      bool boolean     = 4;
-    repeated ValueInput values    = 7;
+      string link      = 5;
+      ArrayInput array = 6;
+      MapInput map     = 7;
+    }
   }
   message KeyValueInput {
     string     key   = 1;

x/registry/helpers/helpers.go

@@ -47,24 +47,20 @@ func Int64ToBytes(num int64) []byte {
 	return buf.Bytes()
 }
 
-// MarshalMapToJSONBytes converts map[string]interface{} to bytes.
+func MustMarshalJSON[T any](val T) (bytes []byte) {
-func MarshalMapToJSONBytes(val map[string]interface{}) (bytes []byte) {
 	bytes, err := json.Marshal(val)
 	if err != nil {
-		panic("Marshal error.")
+		panic("JSON marshal error:" + err.Error())
 	}
-
 	return
 }
 
-// UnMarshalMapFromJSONBytes converts bytes to map[string]interface{}.
+func MustUnmarshalJSON[T any](bytes []byte) T {
-func UnMarshalMapFromJSONBytes(bytes []byte) map[string]interface{} {
+	var val T
-	var val map[string]interface{}
 	err := json.Unmarshal(bytes, &val)
 	if err != nil {
-		panic("Unmarshal error.")
+		panic("JSON unmarshal error:" + err.Error())
 	}
-
 	return val
 }
 

x/registry/keeper/grpc_query_test.go

@@ -3,12 +3,13 @@ package keeper_test
 import (
 	"context"
 	"fmt"
+	"os"
+	"reflect"
+
 	"github.com/cerc-io/laconicd/x/registry/client/cli"
 	"github.com/cerc-io/laconicd/x/registry/helpers"
 	"github.com/cerc-io/laconicd/x/registry/keeper"
 	registrytypes "github.com/cerc-io/laconicd/x/registry/types"
-	"os"
-	"reflect"
 )
 
 func (suite *KeeperTestSuite) TestGrpcQueryParams() {
@@ -69,26 +70,7 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 					{
 						Key: "type",
 						Value: &registrytypes.QueryListRecordsRequest_ValueInput{
-							Type:    "string",
+							Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"WebsiteRegistrationRecord"},
-							String_: "WebsiteRegistrationRecord",
-						},
-					},
-				},
-				All: true,
-			},
-			true,
-			false,
-			1,
-		},
-		{
-			"Filter with tag (extant) (https://git.vdb.to/cerc-io/laconicd/issues/129)",
-			&registrytypes.QueryListRecordsRequest{
-				Attributes: []*registrytypes.QueryListRecordsRequest_KeyValueInput{
-					{
-						Key: "tags",
-						Value: &registrytypes.QueryListRecordsRequest_ValueInput{
-							Type:    "string",
-							String_: "tagA",
 						},
 					},
 				},
@@ -98,6 +80,35 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 			false,
 			1,
 		},
+		// Skip the following test as querying with recursive values not supported (PR https://git.vdb.to/cerc-io/laconicd/pulls/112)
+		// See function RecordsFromAttributes (QueryValueToJSON call) in the registry keeper implementation (x/registry/keeper/keeper.go)
+		// {
+		// 	"Filter with tag (extant) (https://git.vdb.to/cerc-io/laconicd/issues/129)",
+		// 	&registrytypes.QueryListRecordsRequest{
+		// 		Attributes: []*registrytypes.QueryListRecordsRequest_KeyValueInput{
+		// 			{
+		// 				Key: "tags",
+		// 				// Value: &registrytypes.QueryListRecordsRequest_ValueInput{
+		// 				// 	Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"tagA"},
+		// 				// },
+		// 				Value: &registrytypes.QueryListRecordsRequest_ValueInput{
+		// 					Value: &registrytypes.QueryListRecordsRequest_ValueInput_Array{Array: &registrytypes.QueryListRecordsRequest_ArrayInput{
+		// 						Values: []*registrytypes.QueryListRecordsRequest_ValueInput{
+		// 							{
+		// 								Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"tagA"},
+		// 							},
+		// 						},
+		// 					}},
+		// 				},
+		// 				// Throws: "Recursive query values are not supported"
+		// 			},
+		// 		},
+		// 		All: true,
+		// 	},
+		// 	true,
+		// 	false,
+		// 	1,
+		// },
 		{
 			"Filter with tag (non-existent) (https://git.vdb.to/cerc-io/laconicd/issues/129)",
 			&registrytypes.QueryListRecordsRequest{
@@ -105,8 +116,7 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 					{
 						Key: "tags",
 						Value: &registrytypes.QueryListRecordsRequest_ValueInput{
-							Type:    "string",
+							Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"NOEXIST"},
-							String_: "NOEXIST",
 						},
 					},
 				},
@@ -123,8 +133,7 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 					{
 						Key: "typ",
 						Value: &registrytypes.QueryListRecordsRequest_ValueInput{
-							Type:    "string",
+							Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"eWebsiteRegistrationRecord"},
-							String_: "eWebsiteRegistrationRecord",
 						},
 					},
 				},
@@ -141,8 +150,7 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 					{
 						Key: "x500state_name",
 						Value: &registrytypes.QueryListRecordsRequest_ValueInput{
-							Type:    "string",
+							Value: &registrytypes.QueryListRecordsRequest_ValueInput_String_{"california"},
-							String_: "california",
 						},
 					},
 				},
@@ -183,9 +191,13 @@ func (suite *KeeperTestSuite) TestGrpcGetRecordLists() {
 					sr.Equal(resp.GetRecords()[0].GetBondId(), suite.bond.GetId())
 
 					for _, record := range resp.GetRecords() {
-						recAttr := helpers.UnMarshalMapFromJSONBytes(record.Attributes)
+						recAttr := helpers.MustUnmarshalJSON[registrytypes.AttributeMap](record.Attributes)
+
 						for _, attr := range test.req.GetAttributes() {
-							av := keeper.GetAttributeValue(attr.Value)
+							enc, err := keeper.QueryValueToJSON(attr.Value)
+							sr.NoError(err)
+							av := helpers.MustUnmarshalJSON[any](enc)
+
 							if nil != av && nil != recAttr[attr.Key] &&
 								reflect.Slice == reflect.TypeOf(recAttr[attr.Key]).Kind() &&
 								reflect.Slice != reflect.TypeOf(av).Kind() {

x/registry/keeper/keeper.go

@@ -8,10 +8,6 @@ import (
 	"time"
 
 	errorsmod "cosmossdk.io/errors"
-	auctionkeeper "github.com/cerc-io/laconicd/x/auction/keeper"
-	bondkeeper "github.com/cerc-io/laconicd/x/bond/keeper"
-	"github.com/cerc-io/laconicd/x/registry/helpers"
-	"github.com/cerc-io/laconicd/x/registry/types"
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/codec/legacy"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
@@ -20,7 +16,18 @@ import (
 	auth "github.com/cosmos/cosmos-sdk/x/auth/keeper"
 	bank "github.com/cosmos/cosmos-sdk/x/bank/keeper"
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
+	"github.com/gibson042/canonicaljson-go"
+	cid "github.com/ipfs/go-cid"
+	"github.com/ipld/go-ipld-prime"
+	"github.com/ipld/go-ipld-prime/codec/dagjson"
+	cidlink "github.com/ipld/go-ipld-prime/linking/cid"
+	basicnode "github.com/ipld/go-ipld-prime/node/basic"
 	"github.com/tendermint/tendermint/libs/log"
+
+	auctionkeeper "github.com/cerc-io/laconicd/x/auction/keeper"
+	bondkeeper "github.com/cerc-io/laconicd/x/bond/keeper"
+	"github.com/cerc-io/laconicd/x/registry/helpers"
+	"github.com/cerc-io/laconicd/x/registry/types"
 )
 
 var (
@@ -99,6 +106,10 @@ func NewKeeper(cdc codec.BinaryCodec, accountKeeper auth.AccountKeeper, bankKeep
 
 // Logger returns a module-specific logger.
 func (k Keeper) Logger(ctx sdk.Context) log.Logger {
+	return logger(ctx)
+}
+
+func logger(ctx sdk.Context) log.Logger {
 	return ctx.Logger().With("module", types.ModuleName)
 }
 
@@ -146,8 +157,11 @@ func (k Keeper) ListRecords(ctx sdk.Context) []types.Record {
 func (k Keeper) RecordsFromAttributes(ctx sdk.Context, attributes []*types.QueryListRecordsRequest_KeyValueInput, all bool) ([]types.Record, error) {
 	resultRecordIds := []string{}
 	for i, attr := range attributes {
-		val := GetAttributeValue(attr.Value)
+		suffix, err := QueryValueToJSON(attr.Value)
-		attributeIndex := GetAttributesIndexKey(attr.Key, val)
+		if err != nil {
+			return nil, err
+		}
+		attributeIndex := GetAttributesIndexKey(attr.Key, suffix)
 		recordIds, err := k.GetAttributeMapping(ctx, attributeIndex)
 		if err != nil {
 			return nil, err
@@ -175,23 +189,53 @@ func (k Keeper) RecordsFromAttributes(ctx sdk.Context, attributes []*types.Query
 	return records, nil
 }
 
-func GetAttributeValue(input *types.QueryListRecordsRequest_ValueInput) interface{} {
+// TODO not recursive, and only should be if we want to support querying with whole sub-objects,
-	if input.Type == "int" {
+// which seems unnecessary.
-		return input.GetInt()
+func QueryValueToJSON(input *types.QueryListRecordsRequest_ValueInput) ([]byte, error) {
+	np := basicnode.Prototype.Any
+	nb := np.NewBuilder()
+
+	switch value := input.GetValue().(type) {
+	case *types.QueryListRecordsRequest_ValueInput_String_:
+		err := nb.AssignString(value.String_)
+		if err != nil {
+			return nil, err
 		}
-	if input.Type == "float" {
+	case *types.QueryListRecordsRequest_ValueInput_Int:
-		return input.GetFloat()
+		err := nb.AssignInt(value.Int)
+		if err != nil {
+			return nil, err
 		}
-	if input.Type == "string" {
+	case *types.QueryListRecordsRequest_ValueInput_Float:
-		return input.GetString_()
+		err := nb.AssignFloat(value.Float)
+		if err != nil {
+			return nil, err
 		}
-	if input.Type == "boolean" {
+	case *types.QueryListRecordsRequest_ValueInput_Boolean:
-		return input.GetBoolean()
+		err := nb.AssignBool(value.Boolean)
+		if err != nil {
+			return nil, err
 		}
-	if input.Type == "reference" {
+	case *types.QueryListRecordsRequest_ValueInput_Link:
-		return input.GetReference().GetId()
+		link := cidlink.Link{Cid: cid.MustParse(value.Link)}
+		err := nb.AssignLink(link)
+		if err != nil {
+			return nil, err
 		}
-	return nil
+	case *types.QueryListRecordsRequest_ValueInput_Array:
+		return nil, fmt.Errorf("recursive query values are not supported")
+	case *types.QueryListRecordsRequest_ValueInput_Map:
+		return nil, fmt.Errorf("recursive query values are not supported")
+	default:
+		return nil, fmt.Errorf("value has unexpected type %T", value)
+	}
+
+	n := nb.Build()
+	var buf bytes.Buffer
+	if err := dagjson.Encode(n, &buf); err != nil {
+		return nil, fmt.Errorf("encoding value to JSON failed: %w", err)
+	}
+	return buf.Bytes(), nil
 }
 
 func getIntersection(a []string, b []string) []string {
@@ -244,7 +288,7 @@ func (k Keeper) GetRecordExpiryQueue(ctx sdk.Context) []*types.ExpiryQueueRecord
 // ProcessSetRecord creates a record.
 func (k Keeper) ProcessSetRecord(ctx sdk.Context, msg types.MsgSetRecord) (*types.ReadableRecord, error) {
 	payload := msg.Payload.ToReadablePayload()
-	record := types.ReadableRecord{Attributes: payload.Record, BondID: msg.BondId}
+	record := types.ReadableRecord{Attributes: payload.RecordAttributes, BondID: msg.BondId}
 
 	// Check signatures.
 	resourceSignBytes, _ := record.GetSignBytes()
@@ -264,14 +308,12 @@ func (k Keeper) ProcessSetRecord(ctx sdk.Context, msg types.MsgSetRecord) (*type
 	for _, sig := range payload.Signatures {
 		pubKey, err := legacy.PubKeyFromBytes(helpers.BytesFromBase64(sig.PubKey))
 		if err != nil {
-			fmt.Println("Error decoding pubKey from bytes: ", err)
+			return nil, errorsmod.Wrap(sdkerrors.ErrUnauthorized, fmt.Sprint("Error decoding pubKey from bytes: ", err))
-			return nil, errorsmod.Wrap(sdkerrors.ErrUnauthorized, "Invalid public key.")
 		}
 
 		sigOK := pubKey.VerifySignature(resourceSignBytes, helpers.BytesFromBase64(sig.Sig))
 		if !sigOK {
-			fmt.Println("Signature mismatch: ", sig.PubKey)
+			return nil, errorsmod.Wrap(sdkerrors.ErrUnauthorized, fmt.Sprint("Signature mismatch: ", sig.PubKey))
-			return nil, errorsmod.Wrap(sdkerrors.ErrUnauthorized, "Invalid signature.")
 		}
 		record.Owners = append(record.Owners, pubKey.Address().String())
 	}
@@ -312,7 +354,7 @@ func (k Keeper) processRecord(ctx sdk.Context, record *types.ReadableRecord, isR
 		return err
 	}
 
-	expiryTimeKey := GetAttributesIndexKey(ExpiryTimeAttributeName, record.ExpiryTime)
+	expiryTimeKey := GetAttributesIndexKey(ExpiryTimeAttributeName, []byte(record.ExpiryTime))
 	if err := k.SetAttributeMapping(ctx, expiryTimeKey, record.ID); err != nil {
 		return err
 	}
@@ -334,14 +376,51 @@ func (k Keeper) PutRecord(ctx sdk.Context, record types.Record) {
 	k.updateBlockChangeSetForRecord(ctx, record.Id)
 }
 
-func (k Keeper) processAttributes(ctx sdk.Context, attrs map[string]any, id string, prefix string) error {
+func (k Keeper) processAttributes(ctx sdk.Context, attrs types.AttributeMap, id string, prefix string) error {
-	for key, value := range attrs {
+	np := basicnode.Prototype.Map
-		if subRecord, ok := value.(map[string]any); ok {
+	nb := np.NewBuilder()
-			err := k.processAttributes(ctx, subRecord, id, key)
+	encAttrs, err := canonicaljson.Marshal(attrs)
+	if err != nil {
+		return err
+	}
+	if len(attrs) == 0 {
+		encAttrs = []byte("{}")
+	}
+	err = dagjson.Decode(nb, bytes.NewReader(encAttrs))
+	if err != nil {
+		return fmt.Errorf("failed to decode attributes: %w", err)
+	}
+	n := nb.Build()
+	if n.Kind() != ipld.Kind_Map {
+		return fmt.Errorf("record attributes must be a map, not %T", n.Kind())
+	}
+
+	return k.processAttributeMap(ctx, n, id, prefix)
+}
+
+func (k Keeper) processAttributeMap(ctx sdk.Context, n ipld.Node, id string, prefix string) error {
+	for it := n.MapIterator(); !it.Done(); {
+		//nolint:misspell
+		keynode, valuenode, err := it.Next()
+		if err != nil {
+			return err
+		}
+		key, err := keynode.AsString()
+		if err != nil {
+			return err
+		}
+
+		if valuenode.Kind() == ipld.Kind_Map {
+			err := k.processAttributeMap(ctx, valuenode, id, key)
 			if err != nil {
 				return err
 			}
 		} else {
+			var buf bytes.Buffer
+			if err := dagjson.Encode(valuenode, &buf); err != nil {
+				return err
+			}
+			value := buf.Bytes()
 			indexKey := GetAttributesIndexKey(prefix+key, value)
 			if err := k.SetAttributeMapping(ctx, indexKey, id); err != nil {
 				return err
@@ -351,8 +430,8 @@ func (k Keeper) processAttributes(ctx sdk.Context, attrs map[string]any, id stri
 	return nil
 }
 
-func GetAttributesIndexKey(key string, value interface{}) []byte {
+func GetAttributesIndexKey(key string, suffix []byte) []byte {
-	keyString := fmt.Sprintf("%s=%s", key, value)
+	keyString := fmt.Sprintf("%s=%s", key, suffix)
 	return append(PrefixAttributesIndex, []byte(keyString)...)
 }
 
@@ -364,8 +443,6 @@ func (k Keeper) SetAttributeMapping(ctx sdk.Context, key []byte, recordID string
 		if err != nil {
 			return fmt.Errorf("cannot unmarshal byte array, error, %w", err)
 		}
-	} else {
-		recordIds = []string{}
 	}
 	recordIds = append(recordIds, recordID)
 	bz, err := json.Marshal(recordIds)

x/registry/keeper/naming_keeper.go

@@ -611,7 +611,7 @@ func (k Keeper) ProcessAuthorityExpiryQueue(ctx sdk.Context) {
 			k.SetNameAuthority(ctx, name, &authority)
 			k.DeleteAuthorityExpiryQueue(ctx, name, authority)
 
-			ctx.Logger().Info(fmt.Sprintf("Marking authority expired as no bond present: %s", name))
+			k.Logger(ctx).Info(fmt.Sprintf("Marking authority expired as no bond present: %s", name))
 
 			return
 		}
@@ -672,7 +672,7 @@ func (k Keeper) AuthorityExpiryQueueIterator(ctx sdk.Context, endTime time.Time)
 
 // TryTakeAuthorityRent tries to take rent from the authority bond.
 func (k Keeper) TryTakeAuthorityRent(ctx sdk.Context, name string, authority types.NameAuthority) {
-	ctx.Logger().Info(fmt.Sprintf("Trying to take rent for authority: %s", name))
+	k.Logger(ctx).Info(fmt.Sprintf("Trying to take rent for authority: %s", name))
 
 	params := k.GetParams(ctx)
 	rent := params.AuthorityRent
@@ -684,7 +684,7 @@ func (k Keeper) TryTakeAuthorityRent(ctx sdk.Context, name string, authority typ
 		k.SetNameAuthority(ctx, name, &authority)
 		k.DeleteAuthorityExpiryQueue(ctx, name, authority)
 
-		ctx.Logger().Info(fmt.Sprintf("Insufficient funds in owner account to pay authority rent, marking as expired: %s", name))
+		k.Logger(ctx).Info(fmt.Sprintf("Insufficient funds in owner account to pay authority rent, marking as expired: %s", name))
 
 		return
 	}
@@ -699,7 +699,7 @@ func (k Keeper) TryTakeAuthorityRent(ctx sdk.Context, name string, authority typ
 	k.SetNameAuthority(ctx, name, &authority)
 	k.AddBondToAuthorityIndexEntry(ctx, authority.BondId, name)
 
-	ctx.Logger().Info(fmt.Sprintf("Authority rent paid successfully: %s", name))
+	k.Logger(ctx).Info(fmt.Sprintf("Authority rent paid successfully: %s", name))
 }
 
 // ListNameAuthorityRecords - get all name authority records.

x/registry/keeper/record_keeper.go

@@ -39,14 +39,14 @@ func (k RecordKeeper) OnAuctionWinnerSelected(ctx sdk.Context, auctionID string)
 	name := k.GetAuctionToAuthorityMapping(ctx, auctionID)
 	if name == "" {
 		// We don't know about this auction, ignore.
-		ctx.Logger().Info(fmt.Sprintf("Ignoring auction notification, name mapping not found: %s", auctionID))
+		logger(ctx).Info(fmt.Sprintf("Ignoring auction notification, name mapping not found: %s", auctionID))
 		return
 	}
 
 	store := ctx.KVStore(k.storeKey)
 	if !HasNameAuthority(store, name) {
 		// We don't know about this authority, ignore.
-		ctx.Logger().Info(fmt.Sprintf("Ignoring auction notification, authority not found: %s", auctionID))
+		logger(ctx).Info(fmt.Sprintf("Ignoring auction notification, authority not found: %s", auctionID))
 		return
 	}
 
@@ -71,12 +71,12 @@ func (k RecordKeeper) OnAuctionWinnerSelected(ctx sdk.Context, auctionID string)
 			// Can be used to check if names are older than the authority itself (stale names).
 			authority.Height = uint64(ctx.BlockHeight())
 
-			ctx.Logger().Info(fmt.Sprintf("Winner selected, marking authority as active: %s", name))
+			logger(ctx).Info(fmt.Sprintf("Winner selected, marking authority as active: %s", name))
 		} else {
 			// Mark as expired.
 			authority.Status = types.AuthorityExpired
 
-			ctx.Logger().Info(fmt.Sprintf("No winner, marking authority as expired: %s", name))
+			logger(ctx).Info(fmt.Sprintf("No winner, marking authority as expired: %s", name))
 		}
 
 		authority.AuctionId = ""
@@ -85,7 +85,7 @@ func (k RecordKeeper) OnAuctionWinnerSelected(ctx sdk.Context, auctionID string)
 		// Forget about this auction now, we no longer need it.
 		removeAuctionToAuthorityMapping(store, auctionID)
 	} else {
-		ctx.Logger().Info(fmt.Sprintf("Ignoring auction notification, status: %s", auctionObj.Status))
+		logger(ctx).Info(fmt.Sprintf("Ignoring auction notification, status: %s", auctionObj.Status))
 	}
 }
 

x/registry/types/types.go

@@ -4,7 +4,7 @@ import (
 	"crypto/sha256"
 
 	"github.com/cerc-io/laconicd/x/registry/helpers"
-	canonicalJson "github.com/gibson042/canonicaljson-go"
+	"github.com/gibson042/canonicaljson-go"
 )
 
 const (
@@ -13,10 +13,16 @@ const (
 	AuthorityUnderAuction = "auction"
 )
 
+// TODO if schema records are to be more permissive than allowing a map of fields, this type will
+// become specific to content records. schema records will either occupy a new message or have new
+// more general purpose helper types.
+
+type AttributeMap map[string]interface{}
+
 // ReadablePayload represents a signed record payload that can be serialized from/to YAML.
 type ReadablePayload struct {
-	Record     map[string]interface{} `json:"record"`
+	RecordAttributes AttributeMap `json:"record" yaml:"record"`
-	Signatures []Signature            `json:"signatures"`
+	Signatures       []Signature  `json:"signatures" yaml:"signatures"`
 }
 
 // ReadableRecord represents a WNS record.
@@ -28,23 +34,22 @@ type ReadableRecord struct {
 	ExpiryTime string       `json:"expiryTime,omitempty"`
 	Deleted    bool         `json:"deleted,omitempty"`
 	Owners     []string     `json:"owners,omitempty"`
-	Attributes map[string]interface{} `json:"attributes,omitempty"`
+	Attributes AttributeMap `json:"attributes,omitempty"`
 }
 
 // ToPayload converts PayloadEncodable to Payload object.
 // Why? Because go-amino can't handle maps: https://github.com/tendermint/go-amino/issues/4.
 func (payloadObj *ReadablePayload) ToPayload() Payload {
 	// Note: record directly contains the attributes here
-	attributes := helpers.MarshalMapToJSONBytes(payloadObj.Record)
+	attributes := payloadObj.RecordAttributes
 	payload := Payload{
 		Record: &Record{
 			Deleted:    false,
 			Owners:     nil,
-			Attributes: attributes,
+			Attributes: helpers.MustMarshalJSON(attributes),
 		},
 		Signatures: payloadObj.Signatures,
 	}
-	// TODO rm error
 	return payload
 }
 
@@ -52,12 +57,28 @@ func (payloadObj *ReadablePayload) ToPayload() Payload {
 func (payload Payload) ToReadablePayload() ReadablePayload {
 	var encodable ReadablePayload
 
-	encodable.Record = helpers.UnMarshalMapFromJSONBytes(payload.Record.Attributes)
+	encodable.RecordAttributes = helpers.MustUnmarshalJSON[AttributeMap](payload.Record.Attributes)
 	encodable.Signatures = payload.Signatures
 
 	return encodable
 }
 
+// ToRecordObj converts Record to RecordObj.
+// Why? Because go-amino can't handle maps: https://github.com/tendermint/go-amino/issues/4.
+func (r *ReadableRecord) ToRecordObj() (Record, error) {
+	var resourceObj Record
+
+	resourceObj.Id = r.ID
+	resourceObj.BondId = r.BondID
+	resourceObj.CreateTime = r.CreateTime
+	resourceObj.ExpiryTime = r.ExpiryTime
+	resourceObj.Deleted = r.Deleted
+	resourceObj.Owners = r.Owners
+	resourceObj.Attributes = helpers.MustMarshalJSON(r.Attributes)
+
+	return resourceObj, nil
+}
+
 // ToReadableRecord converts Record to a serializable object
 func (r *Record) ToReadableRecord() ReadableRecord {
 	var resourceObj ReadableRecord
@@ -69,34 +90,16 @@ func (r *Record) ToReadableRecord() ReadableRecord {
 	resourceObj.Deleted = r.Deleted
 	resourceObj.Owners = r.Owners
 	resourceObj.Names = r.Names
-	resourceObj.Attributes = helpers.UnMarshalMapFromJSONBytes(r.Attributes)
+	resourceObj.Attributes = helpers.MustUnmarshalJSON[AttributeMap](r.Attributes)
 
 	return resourceObj
 }
 
-// ToRecordObj converts Record to RecordObj.
-// Why? Because go-amino can't handle maps: https://github.com/tendermint/go-amino/issues/4.
-func (r *ReadableRecord) ToRecordObj() (Record, error) {
-	attributes := helpers.MarshalMapToJSONBytes(r.Attributes)
-
-	var resourceObj Record
-
-	resourceObj.Id = r.ID
-	resourceObj.BondId = r.BondID
-	resourceObj.CreateTime = r.CreateTime
-	resourceObj.ExpiryTime = r.ExpiryTime
-	resourceObj.Deleted = r.Deleted
-	resourceObj.Owners = r.Owners
-	resourceObj.Attributes = attributes
-
-	return resourceObj, nil
-}
-
 // CanonicalJSON returns the canonical JSON representation of the record.
 func (r *ReadableRecord) CanonicalJSON() []byte {
-	bytes, err := canonicalJson.Marshal(r.Attributes)
+	bytes, err := canonicaljson.Marshal(r.Attributes)
 	if err != nil {
-		panic("Record marshal error.")
+		panic("error marshaling record: " + err.Error())
 	}
 
 	return bytes