Merge pull request #823 from oasisprotocol/ptrus/feature/consensus-ev…

…ents-timestamp

api/consensus/events: Include timestamp

.changelog/823.feature.md

@@ -0,0 +1 @@
+api/consensus/events: Include timestamp in response

api/spec/v1.yaml

@@ -1810,6 +1810,12 @@ components:
             relates.
             Present only for events of type `roothash.*` except for
             `roothash.execution_discrepancy` before Eden.
+        timestamp:
+          type: string
+          format: date-time
+          description: |
+            The second-granular consensus time of this event's block.
+          example: *iso_timestamp_1
         type:
           allOf: [$ref: '#/components/schemas/ConsensusEventType']
           description: The type of the event.

storage/client/client.go

@@ -482,6 +482,7 @@ func (c *StorageClient) Events(ctx context.Context, p apiTypes.GetConsensusEvent
 			&e.RoothashRuntimeRound,
 			&e.Type,
 			&e.Body,
+			&e.Timestamp,
 		); err != nil {
 			return nil, wrapError(err)
 		}

storage/client/queries/queries.go

@@ -106,8 +106,9 @@ const (
 			OFFSET $9::bigint`
 
 	Events = `
-		SELECT tx_block, tx_index, tx_hash, roothash_runtime_id, roothash_runtime, roothash_runtime_round, type, body
+		SELECT tx_block, tx_index, tx_hash, roothash_runtime_id, roothash_runtime, roothash_runtime_round, type, body, b.time
 			FROM chain.events
+			LEFT JOIN chain.blocks b ON tx_block = b.height
 			WHERE ($1::bigint IS NULL OR tx_block = $1::bigint) AND
 					($2::integer IS NULL OR tx_index = $2::integer) AND
 					($3::text IS NULL OR tx_hash = $3::text) AND