Add version to health endpoint.

api/handlers.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/algorand/indexer/version"
 	"net/http"
 	"strconv"
 
@@ -75,6 +76,7 @@ func (si *ServerImplementation) MakeHealthCheck(ctx echo.Context) error {
 	}
 
 	return ctx.JSON(http.StatusOK, common.HealthCheckResponse{
+		Version:     version.LongVersion(),
 		Data:        health.Data,
 		Round:       health.Round,
 		IsMigrating: health.IsMigrating,

api/handlers_e2e_test.go

@@ -299,3 +299,34 @@ func TestPagingRootTxnDeduplication(t *testing.T) {
 		})
 	}
 }
+
+func TestVersion(t *testing.T) {
+	///////////
+	// Given // An API and context
+	///////////
+	db, shutdownFunc := setupIdb(t, test.MakeGenesis(), test.MakeGenesisBlock())
+	defer shutdownFunc()
+	api := &ServerImplementation{db: db}
+
+	e := echo.New()
+	req := httptest.NewRequest(http.MethodGet, "/", nil)
+	rec1 := httptest.NewRecorder()
+	c := e.NewContext(req, rec1)
+
+	//////////
+	// When // we call the health endpoint
+	//////////
+	err := api.MakeHealthCheck(c)
+
+	//////////
+	// Then // We get the health information.
+	//////////
+	require.NoError(t, err)
+	require.Equal(t, http.StatusOK, rec1.Code)
+	var response generated.HealthCheckResponse
+	json.Decode(rec1.Body.Bytes(), &response)
+
+	require.Equal(t, uint64(0), response.Round)
+	require.False(t, response.IsMigrating)
+	require.Contains(t, response.Version, "from git hash")
+}

api/indexer.oas2.json

@@ -1394,12 +1394,17 @@
       "description": "A health check response.",
       "type": "object",
       "required": [
+        "version",
         "message",
         "round",
         "is-migrating",
         "db-available"
       ],
       "properties": {
+        "version": {
+          "description": "Current version.",
+          "type": "string"
+        },
         "data": {
           "type": "object"
         },

api/indexer.oas3.yml

@@ -1239,13 +1239,18 @@
           },
           "round": {
             "type": "integer"
+          },
+          "version": {
+            "description": "Current version.",
+            "type": "string"
           }
         },
         "required": [
           "db-available",
           "is-migrating",
           "message",
-          "round"
+          "round",
+          "version"
         ],
         "type": "object"
       },