The API provides a means for developers to interact with their own applications through an interface that is independent from any underlying architecture or programming language. Most importantly it allows external users to interact with applications in a way that they could not otherwise do so by directly interacting with the code itself or through some third party tool such as a browser extension or desktop application. Visit:- https://www.testevolve.com/blog/what-is-api-testing-types-and-benefits-of-api-testing

1. What isAPI
Testing?Typesand
Benefitsof API
Testing

2. Application Program Interface (API)
testing is a necessary step in the
application development process. Many
aspects of security, performance,
functionality, and stability may all be
verified via APIs throughout the
software development cycle without the
requirement for any kind of user
interface.
What
exactly is
API testing?

3. Typesof API Testing
Let’s look at some different types of API testing.
API Unit Testing
Unit testing involves testing a single unit of code
that is logically isolated within a system. Individual
units are tested for proper operation. This testing
is critical because, when done properly, it can
detect weaknesses at an early stage. Bugs
discovered as a result of a failing unit of code may
be more difficult to analyse later in the testing
process.

4. This is a type of API testing that is
widely used to ensure the
successful integration of internal
and external or third-party
services. It assists us in ensuring
that when these services are
linked, they can operate together
to establish successful data flow
and subsequent communication.
API contract testing is undertaken
to verify that two separate services
can work together in sync and
establish seamless communication.
In a contract, all interactions made
between services are captured and
stored, helping to validate
messages from both systems and
ensure they adhere to a common
protocol.
API Contract Testing
API Integration
Testing

5. API End-to-End
Testing
End-to-end API testing, as the
name implies, is used to determine
the whole end-to-end flow of data
and information between several
different APIs in a logical functional
sequence. We do this to ensure
that a client journey can be
completed effectively.
API
Performance
Testing
API Performance testing can
assist evaluate whether a service
or a collection of web services as
a whole is functioning within a
set of non-functional boundaries
set by the product owner or the
business.

6. Benefitsof API Testing
API testing has numerous advantages that help to improve the performance of
any application.
Consider the followingadvantages:
Without the usage of a user interface, you can find functional
and performance quality concerns faster.
Reduced test maintenance and faster test execution
Cycle time for problem detection, analysis, fix, and
redeployment has been reduced.

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