Prisma (#2)

feat: added Prisma

src/database/database.test.ts

@@ -0,0 +1,13 @@
+import { createAddition, readAddition } from './database';
+
+describe('Database', () => {
+  it('creates a new record in the Addition table and reads it', async () => {
+    const value = 13;
+
+    const createResult = await createAddition(value);
+
+    const readResult = await readAddition(createResult.id);
+    expect(readResult).toBeDefined();
+    expect(readResult.value).toBe(value);
+  });
+});

src/database/database.ts

@@ -0,0 +1,32 @@
+import { PrismaClient } from '@prisma/client';
+import { randomUUID } from 'crypto';
+
+const prisma = new PrismaClient();
+
+/**
+ * Create a new record in the Addition table.
+ * @param value - The value number to add as a new record.
+ * @returns Whether the database operation succeeded.
+ */
+export async function createAddition(value: number) {
+  return await prisma.addition.create({
+    data: {
+      id: randomUUID(),
+      datetime: new Date(),
+      value
+    }
+  });
+}
+
+/**
+ * Retrieve a record from the Addition table.
+ * @param id - The id of the record.
+ * @returns The retrieved record, or an error.
+ */
+export async function readAddition(id: string) {
+  return await prisma.addition.findUniqueOrThrow({
+    where: {
+      id
+    }
+  });
+}