Postman is a well know API client for web development, it provide us with rich feature for us to test and debug the web api application.
here is another lightweight one and simple UI for api development. it is light, fast and handy for web api development.
you can grab a copy for windows environment
https://insomnia.rest/download
the following table should really help if you are coming from the relational Database and new to NoSQL.
it will help you to learn NoSQL structure.
|
Relational
DB |
MongoDB |
|
Database |
Database |
|
Table |
Collection |
|
Row |
Document |
|
Index |
Index |
|
Join |
$Lookup |
|
Foreign Key |
Reference |
if you are a React developer, you definitely like to have the following extension install in your visual studio. these extensions will easily help you on React application development.
during our development of ASP.Net Web API on visual studio. there is an embedded IIS express with visual studio.
if we want to host the web api in our local IIS. we can follow these steps.
finally my web api application that hosted on IIS is up and running
Recently i setup a local IIS for my web api development. however i can complete the configuration, then try to browse the website from browser. it is loading forever and the web page never loaded.
the main cause of the issue is the idle time-out(minutes) had been set to 20 by default.
after I change it to 0 and recycle the app pool, then the website is working and page is loaded.
solid development principles is a very popular development methodology. we might encounter an interview question about what is SOLID.
since we usually have less time to prepare for tons of interview question. I try to describes five principles in short.
S: Single Responsibility Principle
Object should only have single single responsibility. best example database persistence vs file persistence
we should not bundle them together.
O: Open and Close Principle
Object is open for extension, but not for modification. for any new enhancement or new feature, we should keep the current interface intact. and extend a new interface base on the current one.
L: Liskov Substitution Principle
the interface take the type of parent, should not break if it takes the type of its child.
I : Interface Segregation Principle
split the interface for each individual client, better than have one generous interface for all. it is better and easy for maintenance.
D: Dependency Inversion Principle
if there is a number array, we want to find the indexs of two numbers adding together meet the give number.
for an example we have a number array {1, 3, 4, 5, 8} and given 8
the result should be 1 , 3
where is sample code to solve the above issue.
using System;
using System.Collections;
using System.Diagnostics.CodeAnalysis;
namespace hashmap
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
int[] numarray = new int[7] { 1, 2, 3, 4 ,5, 6, 8};
int[] resultArray = new int[2];
int testNum = 7;
Hashtable ht = new Hashtable();
for (int i = 0; i < numarray.Length; i++) {
int result = 7 - numarray[i];
if (ht.ContainsKey(numarray[i]))
{
resultArray[0] = i;
resultArray[1] = (int)ht[numarray[i]];
}
else {
ht.Add(result, i);
}
}
Console.WriteLine("position at {0} {1}", resultArray[0], resultArray[1]);
}
}
}
