query and path parameters

Path parameter is a part of the URL and takes you to end-point/resources and give you the result of query from that resources. Query parameter is NOT a part of the URL and they are added to the url after the ? mark, as key and value it is filtering the result of query. the end point/resource is same but it acts like a search button and filter the result and returns the response. Additionally, query parameter can be null but path parameter can't be null. If you don't append the path parameter, you will get 404 error. So you can use path parameter if you want to send the data as mandatory.

2 TYPES OF PARAMETERS IN REST SERVICES:

1) QUERY PARAMETERS:
-> is NOT part of url and passed in key=value format
those parameters must be defined by API developer
http://34.223.219.142:1212/ords/hr/employees?limit=100
Query parameters are the most common type of parameters. 
They appear at the end of the request URL after a question mark (?), 
with different name=value pairs separated by ampersands (&). 
Query parameters can be required and optional.
GET /pets/findByStatus?status=available
GET /notes?offset=100&limit=50

2) PATH PARAMETERS
Path parameters are variable parts of a URI path. They are typically 
used to point to a specific resource within a collection, such as a user
identified by ID. A URL can have several path parameters, each 
denoted with curly braces { }.
GET /users/{id}
GET /cars/{carId}/drivers/{driverId}
GET /report.{format}

Posted by: Guest on December-05-2020

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