Follow these steps to create and launch an DYNAMODB instance on AWS:

🌍 Step 1: Log in & Open DynamoDB

🔹 Go to the AWS Console and sign in.
🔹 In the Search Bar, type DynamoDB and click on it.

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🛠️ Step 2: Create a New DynamoDB Table

🔹 Click Create Table.
🔹 Enter a Table Name (e.g., UserData).
🔹 Set a Primary Key:

• Partition Key → e.g., UserID (String or Number)
• (Optional) Sort Key → e.g., Timestamp (For ordered data)

💡 Use a Partition Key only for simple lookups. If you need sorting, add a Sort Key!

🔹 Click Create Table 🎉

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🔢 Step 3: Configure Read/Write Capacity

🔹 Choose On-demand mode for auto-scaling (best for new projects 🚀).
🔹 Or select Provisioned to manually control read/write capacity.

📌 Tip: Enable Auto Scaling to optimize costs & performance!

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🔗 Step 4: Insert Data into DynamoDB

🔹 Option 1: Manually Add Items

1️⃣ Open the UserData table.
2️⃣ Click Explore Table Items → Create Item.
3️⃣ Add key-value pairs (e.g., UserID = 101, Name = John Doe).
4️⃣ Click Save ✅

🔹 Option 2: Insert Data via AWS CLI

Run this command in the AWS CLI:

bash

CopyEdit

aws dynamodb put-item \

    –table-name UserData \

    –item ‘{“UserID”: {“N”: “101”}, “Name”: {“S”: “John Doe”}}’ \

    –region us-east-1

✅ Your data is now stored in DynamoDB!

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📜 Step 5: Query & Retrieve Data

🔹 Use the DynamoDB Query Editor or AWS CLI to fetch data.

🔹 Scan (Fetch All Items):

aws dynamodb scan –table-name UserData –region us-east-1

🔹 Query (Fetch by Key):

aws dynamodb query \

    –table-name UserData \

    –key-condition-expression “UserID = :id” \

    –expression-attribute-values ‘{“:id”:{“N”:”101″}}’ \

    –region us-east-1

📌 Use Query for efficient lookups instead of Scan!

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🚀 Step 6: Enable Streams & Triggers (Optional)

💡 DynamoDB Streams capture real-time changes!
🔹 Go to DynamoDB Table → Exports and Streams.
🔹 Enable DynamoDB Streams to track data changes.
🔹 Use AWS Lambda to trigger events when data updates.

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🔐 Step 7: Secure DynamoDB with IAM Roles

1️⃣ Go to IAM → Policies → Create Policy.
2️⃣ Add this DynamoDB Read-Only Policy:

{

    “Version”: “2012-10-17”,

    “Statement”: [

        {

            “Effect”: “Allow”,

            “Action”: [

                “dynamodb:GetItem”,

                “dynamodb:Scan”,

                “dynamodb:Query”

            ],

            “Resource”: “arn:aws:dynamodb:us-east-1:123456789012:table/UserData”

        }

    ]

}

3️⃣ Attach the policy to IAM users, roles, or EC2 instances.

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✅ Final Check: DynamoDB Setup is Ready!

🎉 You’ve successfully set up DynamoDB with:
✔️ NoSQL table creation
✔️ Auto-scaling for optimized performance
✔️ Efficient querying with Partition & Sort Keys
✔️ Real-time triggers with DynamoDB Streams
✔️ Secure access using IAM Policies