Example 1: http methods
Get : enables you to retrieve data from server
Post: enables you to add data to an existing
file or resource in a server
Put: lets you replace an existing file or resource
in a server
Delete: lets you delete data from server
Patch:For partial update
Example 2: what is Http
Http Stands for "Hypertext Transfer Protocol."
HTTP is the protocol used to transfer data over the web.
It is part of the Internet protocol suite and defines commands and services used
for transmitting webpage data. ... The HTTP server is typically a web host
running web server software, such as Apache or IIS.
Example 3: http methods
GET
getting data in the server
POST
adding data to the server
we need to provide the data in the format
the document specify
and tell exactly what type if data we are sending
defined by Content-Type Header
Common status code for successful POST is
201 Created -- you will have response body
PUT
Put is used to update the exsisting data from the server
difference between PUT and POST
POST is adding new data
so the URL will be /api/spartans
PUT is updating existing data
so the URL will be /api/spartan/validIDNumberHere
provide updated data
provide the contenttype of the data you are sending to update
common status code for successful PUT request
is 204 NO-CONTENT , it has no response body
204 means it was updated successfully
DELETE
Delete method is used to delete the data from the server
Request URL will /api/spartan/theValidID
common status code for successful Delete request
is 204 NO-CONTENT , it has no response body
204 means it was deleted successfully
Example 4: http request
HTTP request method is made up of four components:
Request Method ==> Get, Post, Put, Delete (these are
the common ones)
Request URL ==> the URL of the resource
Request Header ==> Accept-Language, AcceptEncoding, User-Agent, Host
Request Body ==> This is the data to be sent to the
resource
Request Query Parameters : key value pair
HTTP response method is made up of three components:
Response Status Code ==> 200, 301, 404, 500
(these are the most common ones)
Response Header Fields ==> Date, Server, LastModified, Content-Type
Response Body ==> This is the data that comes
back to the client from the server.
Example 5: types of method in api
GET is used for reading and retrieving data.
POST is used for inserting data.
PUT is used for updating data.
DELETE is used for deleting data.
The primary or most-commonly-used HTTP verbs (or methods, as they are properly called) are POST, GET, PUT, PATCH, and DELETE. These correspond to create, read, update, and delete (or CRUD) operations, respectively.
Example 6: HTTP Method
1. GET: getting data in the server.
Usually we get 200 OK back for successful response.
does not requires body
2. POST: adding data to the server defined by Content-Type Header.
Common status code for successful POST is
201 Created -- you will have response body
3. PUT: Put is used to update the existing data from the server.
204 means it was updated successfully
Difference between PUT and POST *POST is adding new data
*PUT is updating existing data
4. PATCH: Usually Used to partially update the resource
5. DELETE: is used to delete the data from the server.
204 means it was deleted successfully. does not requires body
6.HEAD: Used to just get the header from the response, not the body