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Invoke AWS Lambda from a Kotlin Client

Carvia Tech | August 12, 2019 | 2 min read | 34 views | AWS Services

In this tutorial, we will invoke an existing lambda function from a Java Client with aws-java-sdk. This approach can be used to invoke a lambda from another lambda or a java based microservice running as full fledged server app.

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Invoking AWS Lambda from a Java Client

Carvia Tech | August 12, 2019 | 2 min read | 32 views | AWS Services

In this tutorial, we will invoke an existing lambda function from a Java Client with aws-java-sdk.

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Creating AWS Lambda in Kotlin using Spring Cloud Function

Carvia Tech | August 12, 2019 | 5 min read | 33 views | AWS Services

In this tutorial we will use Spring Cloud Functions (version 2.x) in Kotlin to create and deploy a simple AWS Lambda.

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What are Conditional Writes in AWS DynamoDB

Carvia Tech | August 12, 2019 | 2 min read | 342 views | Amazon DynamoDB AWS Services

By default, the DynamoDB write operations (PutItem, UpdateItem, DeleteItem) are unconditional: each of these operations will overwrite an existing item that has the specified primary key.

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How to implement Atomic Counters in DynamoDB for high throughput

Carvia Tech | August 12, 2019 | 3 min read | 506 views | AWS Services

A complete tutorial that walks you through Atomic Counters in Amazon DynamoDB for high throughput scenarios using Java API

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AWS SDK 2: SQS Object Operations using Spring Boot

Carvia Tech | August 12, 2019 | 4 min read | 4 views | AWS Services

In this tutorial, we will walk through new AWS SDK 2.0 for doing message level operations on SQS queue. We will cover queue listing, send message and retrieve/delete message from SQS queue using AWS SDK 2.0

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scan all records of a Amazon DynamoDB table using a Java Code

Carvia Tech | August 12, 2019 | 1 min read | 190 views | AWS Services

In this article we will scan all records from an Amazon DynamoDB table using a Java Code and AWS SDK

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What is difference between Component, Repository, Service, Controller & RestController

Carvia Tech | August 12, 2019 | 2 min read | 176 views

Spring provide 4 basic stereotype annotations - Component, Repository, Service, Controller & RestController. They are all meant for a specific purpose.

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Which data type would you choose for storing Monetary Values, Currency in Java

Carvia Tech | August 10, 2019 | 5 min read | 114 views

Float & Double are bad for financial (even for military use) world, never use them for monetary calculations. If precision is one of your requirements, use BigDecimal instead.

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Morgan Stanley Investment Banking Java Interview Questions

Carvia Tech | August 10, 2019 | 3 min read | 437 views | investment banking

Morgan Stanley Investment Banking Java Interview Questions: core java, design patterns, multi-threading & concurrency, database, unix operating system

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