Merge pull request #32 from rarimo/feat/root-v2

Return state root in get-state-v2

Author: artemskriabin

docs/spec/components/schemas/StateV2.yaml

@@ -7,9 +7,15 @@ allOf:
       attributes:
         type: object
         required:
+          - root
           - signature
           - timestamp
         properties:
+          root:
+            example: "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef"
+            type: string
+            pattern: '^0x[0-9a-fA-F]{64}$'
+            description: Root hash of the state tree
           signature:
             example: "0xd0bf2f6c2270874d8870a1081b67fcb0280b61db000778f159ba39c38fb2595639c2e1d81d085916ba6ec77f2bd4c4a2ae6dfbdbaf8703da7d9fe629b2e1218a00"
             type: string

docs/spec/components/schemas/StateV2Key.yaml

@@ -5,6 +5,7 @@ required:
 properties:
   id:
     type: string
+    description: Unique ID of the state record in db
   type:
     type: string
     enum:

internal/service/api/handlers/get_signed_state_v2.go

@@ -59,6 +59,7 @@ func GetSignedStateV2(w http.ResponseWriter, r *http.Request) {
 				Type: resources.STATE_V2,
 			},
 			Attributes: resources.StateV2Attributes{
+				Root:      state.Root,
 				Signature: hex.EncodeToString(signature),
 				Timestamp: int64(state.Timestamp),
 			},

resources/model_state_v2_attributes.go

@@ -5,6 +5,8 @@
 package resources
 
 type StateV2Attributes struct {
+	// Root hash of the state tree
+	Root string `json:"root"`
 	// Signature of root state signed by relayer private key, with the last byte of the signature set to 27/28.
 	Signature string `json:"signature"`
 	// Time indicates when the event was caught, a.k.a state transition timestamp