Improve demo

dbt-demo/src/ratpack/Ratpack.groovy

@@ -3,10 +3,14 @@ import com.devsoap.dbt.config.DBTConfig
 import com.devsoap.dbt.demo.DatabaseService
 import com.devsoap.dbt.services.TransactionManagerService
 import org.h2.jdbcx.JdbcDataSource
+import ratpack.form.Form
+import ratpack.handlebars.HandlebarsModule
+import ratpack.http.Status
 
 import javax.sql.DataSource
 
 import static ratpack.groovy.Groovy.ratpack
+import static ratpack.handlebars.Template.handlebarsTemplate
 
 ratpack {
 
@@ -16,6 +20,8 @@ ratpack {
   }
 
   bindings {
+    module HandlebarsModule
+
     module (DBTModule) {
       it.ledger.remoteUrl = 'http://localhost:5050/ledger'
       it.executor.remoteUrl = 'http://localhost:5050/executor'
@@ -27,31 +33,43 @@ ratpack {
 
   handlers {
 
-    /**
-     * Consumer services
-     */
-    get('') {
-      get(TransactionManagerService).execute { transaction ->
-        transaction.query("INSERT INTO LOGS(LOG_ID,LOG_VALUE) VALUES (${new Random().nextInt()}, 'HELLO')")
-      }.then {
-        redirect("/gateway/${it['id'].textValue()}")
+    get {
+      render handlebarsTemplate('index.html')
+    }
+
+    post('addQueryToTransaction') {
+      def transactionManager = get(TransactionManagerService)
+      parse(Form).then { Form form ->
+        def query = form.get('query')
+        def transactionId = form.get('transactionId')
+        if(transactionId) {
+          transactionManager.execute(transactionId) {
+            it.query(query)
+          } .then {
+            response.send(it.toString())
+          }
+        } else {
+          transactionManager.execute {
+            it.query(query)
+          } .then {
+            response.send(it.toString())
+          }
+        }
       }
     }
 
-    get('gateway/:transactionId?') {
-      get(TransactionManagerService).execute(pathTokens.transactionId, { transaction ->
-        transaction.query("INSERT INTO LOGS(LOG_ID,LOG_VALUE) VALUES (${new Random().nextInt()}, 'WORLD')")
-      }).then {
-        redirect("/gateway2/${it['id'].textValue()}")
-      }
-    }
-
-    get('gateway2/:transactionId?') {
-      get(TransactionManagerService).execute(pathTokens.transactionId, { transaction ->
-        transaction.query("SELECT * FROM LOGS")
-        transaction.complete()
-      }).then {
-        redirect('/ledger')
+    post('executeTransaction') {
+      def transactionManager = get(TransactionManagerService)
+      parse(Form).then { Form form ->
+        def transactionId = form.get('transactionId')
+        transactionManager.execute(transactionId) {
+          it.complete()
+        }.onError {
+          response.status(Status.of(501))
+          response.send(it.message)
+        }.then {
+          response.send(it.toString())
+        }
       }
     }
   }