From 6d74723c174e6d283b2f0ff7f398accb4e731c2c Mon Sep 17 00:00:00 2001
From: Enric Bisbe Gil <enricu@gmail.com>
Date: Sat, 6 Jul 2024 11:15:55 +0200
Subject: [PATCH] define model structure

---
 models/table.ts | 54 ++++++++++++++++++++++++++++++++++---------------
 package.json    |  1 +
 pnpm-lock.yaml  | 15 ++++++++++++++
 serverless.ts   | 33 ++++++++++++++++++++++++++++++
 4 files changed, 87 insertions(+), 16 deletions(-)

diff --git a/models/table.ts b/models/table.ts
index 3d90065..8bdbc9e 100644
--- a/models/table.ts
+++ b/models/table.ts
@@ -3,38 +3,60 @@ import { Entity, Table } from "dynamodb-onetable";
 import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
 const client = new DynamoDBClient();
 
+const { ddb_table } = process.env;
+
 const MySchema = {
   version: "0.0.1",
   indexes: {
     primary: { hash: "pk", sort: "sk" },
   },
+  params: {
+    typeField: "__typename",
+    isoDates: true,
+    separator: "#",
+    timestamps: true,
+  },
   models: {
-    list: {
-      pk: { type: String, value: "account#${name}" },
-      name: { type: String },
+    List: {
+      pk: { type: String, value: "USER#${userId}" },
+      sk: { type: String, value: "LIST#${id}" },
+      id: { type: String, generate: "ulid" },
+      userId: { type: String, required: true },
+      name: { type: String, required: true },
+      description: { type: String },
+      totalValue: { type: Number, default: 0 },
+      totalItems: { type: Number, default: 0 },
     },
-    item: {
-      pk: { type: String },
-      sk: { type: String },
+    Item: {
+      pk: { type: String, value: "LIST#${listId}" },
+      sk: { type: String, value: "ITEM#${id}" },
+      listId: { type: String },
+      id: { type: String, generate: "ulid" },
+      name: { type: String },
+      description: { type: String },
+      value: { type: Number, default: 0 },
     },
-    buyer: {
-      pk: { type: String },
-      sk: { type: String },
+    Buyer: {
+      pk: { type: String, value: "ITEM#${itemId}" },
+      sk: { type: String, value: "BUYER#${userId}" },
+      userId: { type: String, required: true },
+      name: { type: String, required: true },
+      itemId: { type: String, required: true },
     },
   } as const,
 };
 
 const table = new Table({
   client: client,
-  name: "MyTable",
+  name: ddb_table,
   schema: MySchema,
 });
 
-export type List = Entity<typeof MySchema.models.list>;
-export const List = table.getModel("list");
+export type List = Entity<typeof MySchema.models.List>;
+export const List = table.getModel("List");
 
-export type Item = Entity<typeof MySchema.models.item>;
-export const Item = table.getModel("item");
+export type Item = Entity<typeof MySchema.models.Item>;
+export const Item = table.getModel("Item");
 
-export type Buyer = Entity<typeof MySchema.models.buyer>;
-export const Buyer = table.getModel("buyer");
+export type Buyer = Entity<typeof MySchema.models.Buyer>;
+export const Buyer = table.getModel("Buyer");
diff --git a/package.json b/package.json
index f0e4fab..3c780fc 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.6.0",
+    "@types/node": "^20.14.10",
     "eslint": "9.x",
     "globals": "^15.8.0",
     "prettier": "3.3.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7ed96b0..8b3733c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -24,6 +24,9 @@ importers:
       '@eslint/js':
         specifier: ^9.6.0
         version: 9.6.0
+      '@types/node':
+        specifier: ^20.14.10
+        version: 20.14.10
       eslint:
         specifier: 9.x
         version: 9.6.0
@@ -392,6 +395,9 @@ packages:
     resolution: {integrity: sha512-4pP0EV3iTsexDx+8PPGAKCQpd/6hsQBaQhqWzU4hqKPHN5epPsxKbvUTIiYIHTxaKt6/kEaqPBpu/ufvfbrRzw==}
     engines: {node: '>=16.0.0'}
 
+  '@types/node@20.14.10':
+    resolution: {integrity: sha512-MdiXf+nDuMvY0gJKxyfZ7/6UFsETO7mGKF54MVD/ekJS6HdFtpZFBgrh6Pseu64XTb2MLyFPlbW6hj8HYRQNOQ==}
+
   '@types/serverless@3.12.22':
     resolution: {integrity: sha512-h6U8jv22T0N+9mcKBK2p/gVmcrKW7trUdVNhGemm8bct0lx3i/7svt1x0o/q87nMtOJMcqSvqFz63c7jM1X2Ew==}
 
@@ -980,6 +986,9 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
+  undici-types@5.26.5:
+    resolution: {integrity: sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==}
+
   uri-js@4.4.1:
     resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
 
@@ -1739,6 +1748,10 @@ snapshots:
       '@smithy/types': 3.3.0
       tslib: 2.6.3
 
+  '@types/node@20.14.10':
+    dependencies:
+      undici-types: 5.26.5
+
   '@types/serverless@3.12.22': {}
 
   '@typescript-eslint/eslint-plugin@7.15.0(@typescript-eslint/parser@7.15.0(eslint@9.6.0)(typescript@5.5.3))(eslint@9.6.0)(typescript@5.5.3)':
@@ -2321,6 +2334,8 @@ snapshots:
 
   typescript@5.5.3: {}
 
+  undici-types@5.26.5: {}
+
   uri-js@4.4.1:
     dependencies:
       punycode: 2.3.1
diff --git a/serverless.ts b/serverless.ts
index 34e7b19..fc7f734 100644
--- a/serverless.ts
+++ b/serverless.ts
@@ -20,6 +20,9 @@ const serverlessConfig: Serverless = {
   functions: {
     hello: {
       handler: "functions/handler.hello",
+      environment: {
+        ddb_table: { Ref: "DdbTable" },
+      },
       events: [
         {
           httpApi: {
@@ -30,6 +33,36 @@ const serverlessConfig: Serverless = {
       ],
     },
   },
+
+  resources: {
+    Resources: {
+      DdbTable: {
+        Type: "AWS::DynamoDB::Table",
+        Properties: {
+          AttributeDefinitions: [
+            {
+              AttributeName: "pk",
+              AttributeType: "S",
+            },
+            {
+              AttributeName: "sk",
+              AttributeType: "S",
+            },
+          ],
+          KeySchema: [
+            {
+              AttributeName: "pk",
+              KeyType: "HASH",
+            },
+            {
+              AttributeName: "sk",
+              KeyType: "RANGE",
+            },
+          ],
+        },
+      },
+    },
+  },
 };
 
 export default serverlessConfig;