From 71007dc1b9ae463dfccc067fcb99c3ddadaa1d38 Mon Sep 17 00:00:00 2001
From: Marcin Czerniak <marc999.mc@gmail.com>
Date: Thu, 15 Feb 2024 20:34:18 +0100
Subject: [PATCH] Initial commit

---
 README.md | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 test.py   | 59 ++++++++++++++++++++++++++++++++++
 2 files changed, 155 insertions(+)
 create mode 100644 README.md
 create mode 100644 test.py

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..adaa8ea
--- /dev/null
+++ b/README.md
@@ -0,0 +1,96 @@
+# REST API na środoiwsku AWS Lambda i DynamoDB
+
+# Konfiguracja
+Poradnik jak skonfigurować środowisko można znaleźć pod adresem: https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-dynamo-db.html
+
+# Kod
+Poniżej znajduje się kod funkcji Lambda, która obsługuje zapytania HTTP i komunikuje się z bazą danych DynamoDB - wykonany na potrzebę zadania z przedmiotu *Chmury obliczeniowe* (zad. `6.2`)
+
+```js
+import { DynamoDBClient } from "@aws-sdk/client-dynamodb";
+import {
+  DynamoDBDocumentClient,
+  PutCommand,
+  GetCommand,
+  DeleteCommand,
+} from "@aws-sdk/lib-dynamodb";
+import { randomUUID } from 'crypto';
+
+const client = new DynamoDBClient({});
+const dynamo = DynamoDBDocumentClient.from(client);
+const tableName = "posts";
+
+const DB = {
+  async create({ userId, title, body }) {
+    const id = randomUUID();
+    await dynamo.send(
+      new PutCommand({
+        TableName: tableName,
+        Item: { id, userId, title, body },
+      })
+    );
+    return await DB.get(id);
+  },
+  async get(id) {
+    return (await dynamo.send(
+      new GetCommand({
+        TableName: tableName,
+        Key: { id },
+      })
+    ))?.Item;
+  },
+  async update(id, { userId, title, body }) {
+    await dynamo.send(
+      new PutCommand({
+        TableName: tableName,
+        Item: { id, userId, title, body },
+      })
+    );
+    return await DB.get(id);
+  },
+  async delete(id) {
+    _result = await DB.get(id);
+    await dynamo.send(
+      new DeleteCommand({
+        TableName: tableName,
+        Key: { id },
+      })
+    );
+    return _result;
+  },
+}
+
+export const handler = async (event, context) => {
+  let body;
+
+  try {
+    switch (event.routeKey) {
+      case "POST /":
+        body = await DB.create(JSON.parse(event.body));
+        break;
+      case "DELETE /{id}":
+        body = await DB.delete(event.pathParameters.id);
+        break;
+      case "GET /{id}":
+        body = await DB.get(event.pathParameters.id);
+        break;
+      case "PUT /{id}":
+        body = await DB.update(event.pathParameters.id, JSON.parse(event.body));
+        break;
+      default:
+        throw new Error(`Unsupported route: "${event.routeKey}"`);
+    }
+
+    return {
+      statusCode: 200,
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(body),
+    };
+  } catch (err) {
+    return {
+      statusCode: 400,
+      body: JSON.stringify(err.message),
+    };
+  }
+};
+```
\ No newline at end of file
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..8214008
--- /dev/null
+++ b/test.py
@@ -0,0 +1,59 @@
+WEBSERVICE_URL = "https://my3s18krif.execute-api.us-east-1.amazonaws.com"
+
+import requests
+from faker import Faker
+fake = Faker()
+
+n = 3
+
+outs = []
+outs2 = []
+
+OK = True
+
+for i in range(n):
+    try:
+        outs.append(requests.post(WEBSERVICE_URL, json={'userId': 1, 'title': fake.catch_phrase(), 'body': fake.text()}).json())
+    except:
+        print("Nie udało się dodać nowego zasobu")
+        OK = False
+
+for i in range(n):
+    try:
+        tmp = requests.get(WEBSERVICE_URL+'/'+str(outs[i]['id'])).json()
+        if tmp != outs[i]:
+            print("Pobrany zasób nie jest zgodny ze wzrocem")
+            OK = False
+    except:
+        print("Nie udało się pobrać zasobu: "+WEBSERVICE_URL+'/'+str(outs[i]['id']))
+        OK = False
+
+for i in range(n):
+    try:
+        outs2.append(requests.put(WEBSERVICE_URL+'/'+str(outs[i]['id']), json={'userId': 1, 'title': fake.catch_phrase(), 'body': fake.text()}).json())
+    except:
+        OK = False
+        print("Nie udało się zmodyfikować zasobu: "+WEBSERVICE_URL+'/'+str(outs[i]['id']))
+
+for i in range(n):
+    try:
+        tmp = requests.get(WEBSERVICE_URL+'/'+str(outs[i]['id'])).json()
+        if tmp != outs2[i]:
+            print("Pobrany zasób nie jest zgodny ze zaktualizowanym wzrocem")
+            OK = False
+    except:
+        print("Nie udało się pobrać zasobu: "+WEBSERVICE_URL+'/'+str(outs[i]['id']))
+        OK = False
+
+for i in range(n):
+    try:
+        requests.delete(WEBSERVICE_URL+'/'+str(outs[i]['id']), json={'userId': 1, 'title': fake.catch_phrase(), 'body': fake.text()}).json()
+    except Exception as e:
+        print(e)
+        print("Nie udało się usunąć zasobu: "+WEBSERVICE_URL+'/'+str(outs[i]['id']))
+        OK = False
+
+if OK:
+    print("==================\nOK zaliczone")
+else:
+    print("==================\nNie zaliczone")
\ No newline at end of file