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Pragya Keshap answered on June 23, 2022 Popularity 1/10 Helpfulness 1/10

answer APIS

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related What is API?

APIS

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API stands for Application Programming Interface. In the context of APIs, the word Application refers to any software with a distinct function. Interface can be thought of as a contract of service between two applications. This contract defines how the two communicate with each other using requests and responses. Their API documentation contains information on how developers are to structure those requests and responses.

@RestController
class EmployeeController {

  private final EmployeeRepository repository;

  EmployeeController(EmployeeRepository repository) {
    this.repository = repository;
  }


  // Aggregate root
  // tag::get-aggregate-root[]
  @GetMapping("/employees")
  List<Employee> all() {
    return repository.findAll();
  }
  // end::get-aggregate-root[]

  @PostMapping("/employees")
  Employee newEmployee(@RequestBody Employee newEmployee) {
    return repository.save(newEmployee);
  }

  // Single item
  
  @GetMapping("/employees/{id}")
  Employee one(@PathVariable Long id) {
    
    return repository.findById(id)
      .orElseThrow(() -> new EmployeeNotFoundException(id));
  }

  @PutMapping("/employees/{id}")
  Employee replaceEmployee(@RequestBody Employee newEmployee, @PathVariable Long id) {
    
    return repository.findById(id)
      .map(employee -> {
        employee.setName(newEmployee.getName());
        employee.setRole(newEmployee.getRole());
        return repository.save(employee);
      })
      .orElseGet(() -> {
        newEmployee.setId(id);
        return repository.save(newEmployee);
      });
  }

  @DeleteMapping("/employees/{id}")
  void deleteEmployee(@PathVariable Long id) {
    repository.deleteById(id);
  }
}

https://aws.amazon.com/what-is/api/

Popularity 1/10 Helpfulness 1/10 Language java

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Tags: java

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Contributed on Feb 07 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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what is api

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An Application Programming Interface (API) is a set of commands, 
functions, protocols, and objects that programmers can use to 
create software or interact with an external system.

Think of API as an interface for programs. A UI (User Interface) is an interface
for the user.
- Examples of API: library API (jQuery, Express, JavaScript), or Data request 
API like Weather condition API and current time API.

- To make an API request you need to use an HTTP/HTTPS request to external
servers

Say you were going to a restaurant, 
we know that there are things that are 
on the menu like cakes and desert while 
there are raw ingredients in the Kitchen.

The restaurant would not let you go into 
the Kitchen to eat ingredients since the 
restaurant has certain things that they sell 
and let you buy and there are other things that 
are off limits, which is similar to data.

Facebook has data on users while the police API 
has data on crimes. They all have certain data that 
they allow you to access and some data that are not your business.

At a restaurant, you are provided with a menu (API) that 
allows to you to choose what you want and what they provide.

For a weather API, they include the temperature, 
weather condition, weather image, and pressure

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Contributed on Jun 23 2022

Average Armadillo

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what is API

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An application programming interface is a way for two or more computer programs to communicate with each other. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build or use such a connection or interface is called an API specification.

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Contributed on Mar 30 2023

Leo Fras

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What is API?

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Ans: API is the abbreviation for Application Programming Interface. It specifies how two modules of software communicate with one another. There are various types of APIs, but the swagger is focused on the Web API.

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Contributed on Feb 22 2023

Pragya Keshap

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