diff --git a/backend/typescript/Dockerfile b/backend/typescript/Dockerfile
index 6b86116..7073a78 100644
--- a/backend/typescript/Dockerfile
+++ b/backend/typescript/Dockerfile
@@ -13,5 +13,7 @@ RUN yarn install
 
 COPY . ./
 
+RUN npx prisma generate --schema=models/prisma/schema.prisma
+
 EXPOSE 8080
 ENTRYPOINT ["yarn", "dev"]
diff --git a/backend/typescript/services/implementations/simpleEntityService.ts b/backend/typescript/services/implementations/simpleEntityService.ts
index da18bb9..b6d7367 100644
--- a/backend/typescript/services/implementations/simpleEntityService.ts
+++ b/backend/typescript/services/implementations/simpleEntityService.ts
@@ -126,7 +126,10 @@ export default SimpleEntityService;
 
 // } mongodb
 // postgresql {
-import PgSimpleEntity from "../../models/simpleEntity.model";
+import { PrismaClient, simple_entities, enum_entities_enum_field } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
 import {
   ISimpleEntityService,
   SimpleEntityRequestDTO,
@@ -140,9 +143,9 @@ const Logger = logger(__filename);
 class SimpleEntityService implements ISimpleEntityService {
   /* eslint-disable class-methods-use-this */
   async getEntity(id: string): Promise<SimpleEntityResponseDTO> {
-    let entity: PgSimpleEntity | null;
+    let entity: simple_entities | null;
     try {
-      entity = await PgSimpleEntity.findByPk(id, { raw: true });
+      entity = await prisma.simple_entities.findUnique({ where: { id: Number(id) } });
       if (!entity) {
         throw new Error(`Entity id ${id} not found`);
       }
@@ -155,7 +158,7 @@ class SimpleEntityService implements ISimpleEntityService {
       id: String(entity.id),
       stringField: entity.string_field,
       intField: entity.int_field,
-      enumField: entity.enum_field,
+      enumField: entity.enum_field as enum_entities_enum_field,
       stringArrayField: entity.string_array_field,
       boolField: entity.bool_field,
     };
@@ -163,21 +166,17 @@ class SimpleEntityService implements ISimpleEntityService {
 
   async getEntities(): Promise<SimpleEntityResponseDTO[]> {
     try {
-      const entities: Array<PgSimpleEntity> = await PgSimpleEntity.findAll({
-        raw: true,
-      });
+      const entities: Array<simple_entities> = await prisma.simple_entities.findMany();
       return entities.map((entity) => ({
         id: String(entity.id),
         stringField: entity.string_field,
         intField: entity.int_field,
-        enumField: entity.enum_field,
+        enumField: entity.enum_field as enum_entities_enum_field,
         stringArrayField: entity.string_array_field,
         boolField: entity.bool_field,
       }));
     } catch (error: unknown) {
-      Logger.error(
-        `Failed to get entities. Reason = ${getErrorMessage(error)}`,
-      );
+      Logger.error(`Failed to get entities. Reason = ${getErrorMessage(error)}`);
       throw error;
     }
   }
@@ -185,26 +184,26 @@ class SimpleEntityService implements ISimpleEntityService {
   async createEntity(
     entity: SimpleEntityRequestDTO,
   ): Promise<SimpleEntityResponseDTO> {
-    let newEntity: PgSimpleEntity | null;
+    let newEntity: simple_entities | null;
     try {
-      newEntity = await PgSimpleEntity.create({
-        string_field: entity.stringField,
-        int_field: entity.intField,
-        enum_field: entity.enumField,
-        string_array_field: entity.stringArrayField,
-        bool_field: entity.boolField,
+      newEntity = await prisma.simple_entities.create({
+        data: {
+          string_field: entity.stringField,
+          int_field: entity.intField,
+          enum_field: entity.enumField as enum_entities_enum_field,
+          string_array_field: entity.stringArrayField,
+          bool_field: entity.boolField,
+        },
       });
     } catch (error: unknown) {
-      Logger.error(
-        `Failed to create entity. Reason = ${getErrorMessage(error)}`,
-      );
+      Logger.error(`Failed to create entity. Reason = ${getErrorMessage(error)}`);
       throw error;
     }
     return {
       id: String(newEntity.id),
       stringField: newEntity.string_field,
       intField: newEntity.int_field,
-      enumField: newEntity.enum_field,
+      enumField: newEntity.enum_field as enum_entities_enum_field,
       stringArrayField: newEntity.string_array_field,
       boolField: newEntity.bool_field,
     };
@@ -214,24 +213,18 @@ class SimpleEntityService implements ISimpleEntityService {
     id: string,
     entity: SimpleEntityRequestDTO,
   ): Promise<SimpleEntityResponseDTO | null> {
-    let resultingEntity: PgSimpleEntity | null;
-    let updateResult: [number, PgSimpleEntity[]] | null;
+    let resultingEntity: simple_entities | null;
     try {
-      updateResult = await PgSimpleEntity.update(
-        {
+      resultingEntity = await prisma.simple_entities.update(
+        { where: { id: Number(id) },
+        data: {
           string_field: entity.stringField,
           int_field: entity.intField,
-          enum_field: entity.enumField,
+          enum_field: entity.enumField as enum_entities_enum_field,
           string_array_field: entity.stringArrayField,
           bool_field: entity.boolField,
         },
-        { where: { id }, returning: true },
-      );
-
-      if (!updateResult[0]) {
-        throw new Error(`Entity id ${id} not found`);
-      }
-      [, [resultingEntity]] = updateResult;
+      });
     } catch (error: unknown) {
       Logger.error(
         `Failed to update entity. Reason = ${getErrorMessage(error)}`,
@@ -242,7 +235,7 @@ class SimpleEntityService implements ISimpleEntityService {
       id: String(resultingEntity.id),
       stringField: resultingEntity.string_field,
       intField: resultingEntity.int_field,
-      enumField: resultingEntity.enum_field,
+      enumField: resultingEntity.enum_field as enum_entities_enum_field,
       stringArrayField: resultingEntity.string_array_field,
       boolField: resultingEntity.bool_field,
     };
@@ -250,12 +243,9 @@ class SimpleEntityService implements ISimpleEntityService {
 
   async deleteEntity(id: string): Promise<string> {
     try {
-      const deleteResult: number | null = await PgSimpleEntity.destroy({
-        where: { id },
+      await prisma.simple_entities.delete({
+        where: { id: Number(id) }
       });
-      if (!deleteResult) {
-        throw new Error(`Entity id ${id} not found`);
-      }
       return id;
     } catch (error: unknown) {
       Logger.error(