Lia  Haley

Lia Haley

1605668028

An Introduction to ENT

Database systems are an integral part of software development. A software developer needs to be skilled in working with databases irrespective of the programming language of choice. Most programming languages have various tools/packages that make working with database management systems easy for developers. Some of these tools are native to the programming language, others are built/maintained by the community of developers around the language and made available for free use.

The lack of a graph-based ORM(Object-relational mapping) for the Go programming language led a team of developers at Facebook to create ent. Ent is an entity framework typically used for modeling data in a graph-based structure. The ent framework prides itself on its ability to model data as Go code unlike many other ORM’s that model data as struct tags. Due to the graph-based structure of the ent framework, querying data stored in the database can be done with ease and takes the form of graph traversal. ent comes with a command-line tool which we can use to automatically generate code schema and get a visual representation of the schema.

In this post, we will explore all the cool features of the ent framework and build a simple CRUD API that leverages the various functionalities of ent.

Prerequisites

To follow along while reading this article, you will need:

Getting started with ent

The first step in working with the ent framework is to install it into our project. To install ent, run the following command go get github.com/facebook/ent/cmd/entc. The command will install entc the command-line tool for the ent package.

Throughout this article, we will build a simple CRUD(Create, Read, Update, and Delete) API that leverages ent. The API will contain five endpoints, the purpose of building this API is to show how to perform common create, read, update, and delete operations on a database using ent.

To get started, create the needed files and folders to match the tree structure below:

├── handlers/
│ ├── handler.go
├── database/
│ ├── db.go
└── main.go
  • The main.go file will contain all of the logic related to creating the server for the API. We will be using fiber, the express style framework for Go to quickly wire up our API endpoints.
  • The db.go file in the database directory will contain code related to creating a database connection and a client
  • The handler.go file will house the API handlers

In the next section, we will start building the API and explore ent.

A deep dive into ent

To get started with the project, run go mod init in the root directory of the project. This will initialize a new project with Go modules. Next, we have to install fiber, the framework we will use in building the API, by running the following command in the root directory of the project github.com/gofiber/fiber/v2.

In building the API for an imaginary note-taking application, we will need the following endpoints:

  • /api/v1/createnote
  • /api/v1/readnote/
  • /api/v1/searchnote/:title
  • /api/v1/updatenote/:id
  • /api/v1/deletenote/:id

In the main.go file, add the following lines of code:

package main

import (
   "fmt"

   "github.com/gofiber/fiber/v2"
)

func Routes(app *fiber.App){
   api := app.Group("/api/v1")

   api.Get("/", func(c *fiber.Ctx) error {
      return c.SendString("Hello, World!")
   })
}

func main() {
   app := fiber.New()

   Routes(app)

   err := app.Listen(":3000")
   if err != nil {
      fmt.Println("Unable to start server")
   }
}

The above code creates a simple web server. At the moment only one endpoint is wired up, in the coming sections we will be working in the handler.go files to ensure that all the API endpoints are functional. For now, you can run the above file and visit localhost:3000/api/v1/ on your browser. If everything went well, you should see “hello world” printed out.

#go #programming #api #web-development #developer

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An Introduction to ENT
Cayla  Erdman

Cayla Erdman

1594369800

Introduction to Structured Query Language SQL pdf

SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:

1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.

2. Every database seller needs an approach to separate its item from others.

Right now, contrasts are noted where fitting.

#programming books #beginning sql pdf #commands sql #download free sql full book pdf #introduction to sql pdf #introduction to sql ppt #introduction to sql #practical sql pdf #sql commands pdf with examples free download #sql commands #sql free bool download #sql guide #sql language #sql pdf #sql ppt #sql programming language #sql tutorial for beginners #sql tutorial pdf #sql #structured query language pdf #structured query language ppt #structured query language

Harry Singh

1617267579

Introduction to VMware

What is VMware?
VMware is a virtualization and cloud computing software provider. Founded in 1998, VMware is a subsidiary of Dell Technologies.

VMware Certification Levels

  • VMware Certified Technical Associate
  • VMware Certified Professional
  • VMware Certified Advanced Professional
  • VMware Certified Design Expert

VMware certification salary?

  • VCP: VMware Certified Professional: $88,000
  • VCAP: VMware Certified Advanced Professional: $103,000
  • VCDX: VMware Certified Design Expert: $156,000
  • VCA-DT: VMware Certified Associate: $81,000
  • VCP-DT: VMware Certified Professional: $98,000
  • VCAP-DT: VMware Certified Advanced Professional: $115,000

Top Companies which are using VMware

  • U.S. Security Associates, Inc.
  • Column Technologies, Inc.
  • Allied Digital Services Ltd
  • Mondelez International, Inc.

**How to learn Vmware ? **
If you are looking for VMware Training in Hyderabad? SSDN Technologies offer best VMware Training in Hyderabad with certified instructor. We are authorized training partner of VMware. Take VMware training and get job in MNCs.

**Why SSDN Technologies is Best for VMware Training in Hyderabad? **

  1. Training by Industry Experts
  2. Placement Assistance
  3. Live Project Based Training
  4. Deliver Only The Best To The Clients
  5. Well Equipped Labs
  6. Course Completion Certificate

#introduction to vmware #introduction to vmware

Introduction to Chatbots - How Chatbots work? 1/4

Many companies today claim that they have chatbots running on NLP and that they are creating responses on the fly. But how do Chatbots work?

Chatbots are aiming to make natural interactions indistinguishable from human conversations, but how much is true? What goes into such a backend?

Let’s discuss.

Table of Contents[show]

How do Chatbots work?

Chatbots work using multiple methodologies. A few of those techniques are easy ones, based on keyword extraction. Some of the techniques respond with FAQ sections.

While some are more advanced ones like Haptik that work on NLP and respond in a much more human-like manner. Let’s find out the different ways of how chatbots work. In the upcoming articles, we’ll talk about creating your first chatbot.

#python advanced #chatbots #introduction to chatbots #chatbots work #introduction to chatbots - how chatbots work?

August  Larson

August Larson

1624422180

A Swift Introduction To Probability Theory With Python

An overview of programming foundational calculus and statistics behind probability theory in Python.

Introduction

Probability theory is a sect of mathematics that focuses on the interpretations of the likelihood of certain outcomes. The mathematical branch uses axioms to formally measure probability in probable space. Probable space is a name given to sample space that is used to determine likelihood. Given the definition, it is easy to see why probability theory takes a strong hold in experiments and predicting the outcomes of those experiments. Using data and probable space, we can make informed decisions using data based on prior results. Just as well, we can determine analytical correlations that can provide valuable information about the world we live in.

Needless to say, this makes this branch of mathematics pretty powerful. Not only can we use these mathematics to make informed decisions about the world around us and how to improve it, but we can also use it to predict the impact of those decisions. This in turn makes us even more informed about the potential outcome of the decisions made from these analytics. Now that we understand the power of probability theory, let’s dive into probable space, distributions, and how we can use them in the Python programming language.

#mathematics #python #programming #statistics #a swift introduction to probability theory with python #a swift introduction to probability theory

Troy  Marvin

Troy Marvin

1594882260

Introduction to OpenCV

OpenCV is a python library, that is very useful in Visualization and Analyzing purposes.

#python3 #opencv #image #visualization #internity-foundation #introduction