1. TITLE OF SEMINAR:-
C# AND REST API SERVICES
PRESENTED BY :-
PRADNYA RAVINDRA GHEGADMAL
GUIDED BY –
PROF. JAVED ATTAR
DEPARTMENT OF MCA
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2. CONTENTS
INTRODUCTION CHARACTERISTICS
SECURITY AND
PRIVACY
ADVANTAGES DISADVANTAGES CONCLUSION
REFERENCES
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3. INTRODUCTION OF C#
It is an object-oriented programming language created by Microsoft that runs
on the .NET Framework.
C# has roots from the C family, and the language is close to other popular
languages like C++ and Java.
The first version was released in year 2002. The latest version, C# 8, was
released in September 2019.
C# is an object oriented language which gives a clear structure to programs and
allows code to be reused, lowering development costs.
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4. WHY USE C# ?
It is easy to learn and
simple to use.
C# is close to
C, C++ and Java, it makes
it easy for programmers
to switch to C# or vice
versa.
C# is used for: Mobile applications
Desktop applications Web applications Games And much, much more!
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6. REST API SERVICE
• REST stands for REpresentational State Transfer.
• API stands for Application Programming Interface.
• Main purpose to get , put , update and delete the data from server.
• The communication between the client and the server happens over HTTP.
• REST also enables servers to cache the response that improves the application’s performance.
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7. WHY USE REST API ?
The REST API creates an object, and thereafter sends the values of an object
in response to the client.
It breaks down a transaction in order to create small modules. Now, each of
these modules is used to address a specific part of the transaction.
This approach provides more flexibility but requires a lot of effort to be built
from the very scratch.
APIs makes developers to write a separate communication protocol for each
third-party software or service with which they wanted to communicate.
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8. CHARACTERISTICS OF REST API
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Easy readable Difficult to misuse It supports JSON and XML

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WORKING OF REST API SERVICE

11. REST API METHODS
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• GET: The HTTP GET method is used to read (or retrieve) a representation of a
resource. GET returns a representation in XML or JSON and an HTTP response
code of 200 (OK). In an error case, it most often returns a 404 (NOT FOUND) or
400 (BAD REQUEST).
• POST: POST method is used to request the server to accept the enclosed entity as
a subordinate of the existing resource identified by the Request-URI. This means
the POST method call will create a child resource under a collection of resources.

12. • PUT: It is used for updating the capabilities. However, PUT can also be
used to create a resource in the case where the resource ID is chosen
by the client instead of by the server. In other words, if the PUT is to a
URI that contains the value of a non-existent resource ID.
• DELETE: It is used to delete a resource identified by a URI. On
successful deletion, return HTTP status 200 (OK) along with a
response body.
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13. WHERE WE CAN USE REST API
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14. ADVANTAGES OF REST API
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EASY TO INTEGRATE USE OF HTTP IT’S A SCALABLE
LANGUAGE THAT’S
EASY TO MAINTAIN
INDEPENDENCE SPEED

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The biggest problem with
REST APIs is the nature of
multiple endpoints.
These require clients to do
multiple round-trips to get
their data.
REST is lightweight
architecture but it is not
suitable to handle a complex
environment.
REST requests (especially
GET) are not suitable for
large amounts of data.
DISADVANTAGES OF REST API

16. CONCLUSION
• Sometimes the simplest definitions can be
taken for granted in the API space.
Understanding what an API is, and what an
API call is, is crucial to comprehending the
ever-growing complexity of interconnected
networks in modern web development.
While this is only a basic primer, we
hope we’ve done a decent job of
introducing it.
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17. REFERENCES
• https://www.tutorialspoint.com
• https://www.simplilearn.com/tutorials
• https://www.w3schools.in
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