feat: expose version with healthcheck query

packages/backend/src/graphql/queries/healthcheck.ts

@@ -0,0 +1,7 @@
+const healthcheck = () => {
+  return {
+    version: process.env.npm_package_version,
+  }
+};
+
+export default healthcheck;

packages/backend/src/graphql/query-resolvers.ts

@@ -9,6 +9,7 @@ import getExecutions from './queries/get-executions';
 import getExecutionSteps from './queries/get-execution-steps';
 import getData from './queries/get-data';
 import getCurrentUser from './queries/get-current-user';
+import healthcheck from './queries/healthcheck';
 
 const queryResolvers = {
   getApps,
@@ -22,6 +23,7 @@ const queryResolvers = {
   getExecutionSteps,
   getData,
   getCurrentUser,
+  healthcheck,
 };
 
 export default queryResolvers;

packages/backend/src/graphql/schema.graphql

@@ -14,6 +14,7 @@ type Query {
   ): ExecutionStepConnection
   getData(stepId: String!, key: String!, parameters: JSONObject): JSONObject
   getCurrentUser: User
+  healthcheck: AppHealth
 }
 
 type Mutation {
@@ -424,6 +425,10 @@ type ExecutionStepConnection {
   pageInfo: PageInfo
 }
 
+type AppHealth {
+  version: String
+}
+
 schema {
   query: Query
   mutation: Mutation

packages/backend/src/helpers/authentication.ts

@@ -24,6 +24,7 @@ const authentication = shield(
   {
     Query: {
       '*': isAuthenticated,
+      healthcheck: allow,
     },
     Mutation: {
       '*': isAuthenticated,