diff --git a/lesson_05/types/types_app/src/main/java/com/codedifferently/lesson5/dataprovider/RandyCastroProvider.java b/lesson_05/types/types_app/src/main/java/com/codedifferently/lesson5/dataprovider/RandyCastroProvider.java
new file mode 100644
index 00000000..6809a743
--- /dev/null
+++ b/lesson_05/types/types_app/src/main/java/com/codedifferently/lesson5/dataprovider/RandyCastroProvider.java
@@ -0,0 +1,22 @@
+package com.codedifferently.lesson5.dataprovider;
+
+import java.util.Map;
+import org.springframework.stereotype.Service;
+
+@Service
+public class RandyCastroProvider extends DataProvider {
+  public String getProviderName() {
+    return "RandyCastroProvider";
+  }
+
+  public Map<String, Class> getColumnTypeByName() {
+    return Map.of(
+        "column1", Short.class,
+        "column2", Long.class,
+        "column3", String.class,
+        "column4", Boolean.class,
+        "column5", Float.class,
+        "column6", Integer.class,
+        "column7", Double.class);
+  }
+}
diff --git a/lesson_05/types/types_app/src/main/resources/data/RandyCastroProvider.json b/lesson_05/types/types_app/src/main/resources/data/RandyCastroProvider.json
new file mode 100644
index 00000000..6128bac8
--- /dev/null
+++ b/lesson_05/types/types_app/src/main/resources/data/RandyCastroProvider.json
@@ -0,0 +1,92 @@
+[
+  {
+    "column1": "14780",
+    "column2": "489905102837440000",
+    "column3": "bmtjv90",
+    "column4": "true",
+    "column5": "1.0835734E38",
+    "column6": "1048333181",
+    "column7": "1.317544283408283E308"
+  },
+  {
+    "column1": "29161",
+    "column2": "8111258549144755200",
+    "column3": "4hb3a8v",
+    "column4": "true",
+    "column5": "1.3354465E38",
+    "column6": "893782633",
+    "column7": "1.6853837382638126E308"
+  },
+  {
+    "column1": "7057",
+    "column2": "4026662046790693888",
+    "column3": "g7fwsz9am",
+    "column4": "false",
+    "column5": "2.319028E38",
+    "column6": "1082711103",
+    "column7": "3.964227665770984E307"
+  },
+  {
+    "column1": "18781",
+    "column2": "380790119761803648",
+    "column3": "miav0pft",
+    "column4": "false",
+    "column5": "1.0669211E38",
+    "column6": "1643607108",
+    "column7": "8.571540713314068E305"
+  },
+  {
+    "column1": "28728",
+    "column2": "8535389658466391040",
+    "column3": "n0f5daiw87kx",
+    "column4": "false",
+    "column5": "1.1388677E38",
+    "column6": "19017808",
+    "column7": "1.4336780831037518E308"
+  },
+  {
+    "column1": "11427",
+    "column2": "6484105020654936064",
+    "column3": "h615oa8",
+    "column4": "false",
+    "column5": "1.2820838E37",
+    "column6": "569934766",
+    "column7": "1.220535202205779E308"
+  },
+  {
+    "column1": "13148",
+    "column2": "4328780805304557568",
+    "column3": "xa5zt9",
+    "column4": "false",
+    "column5": "3.122184E38",
+    "column6": "618867042",
+    "column7": "1.1207884109447862E308"
+  },
+  {
+    "column1": "29276",
+    "column2": "4702446005999076352",
+    "column3": "2hwuk3dryj",
+    "column4": "true",
+    "column5": "2.9767738E38",
+    "column6": "654707627",
+    "column7": "1.3067851359681312E308"
+  },
+  {
+    "column1": "3726",
+    "column2": "4441199370753253376",
+    "column3": "qvzce",
+    "column4": "true",
+    "column5": "2.7062756E38",
+    "column6": "1344486435",
+    "column7": "2.980141082771419E307"
+  },
+  {
+    "column1": "27660",
+    "column2": "7628825373286667264",
+    "column3": "92m4ze08gh",
+    "column4": "false",
+    "column5": "3.1115626E38",
+    "column6": "722019115",
+    "column7": "1.1755519940767056E308"
+  }
+]
\ No newline at end of file