Query Parameters

-
Query Parameters

  • Query paramaeters are data sent from the client to the server.
  • They area a list of "name" : "value" pairs.
  • They are only relevant in a GET HTTP request.
  • The "name"="value" pair is appended to the ? which is written after the URL.
  • You can incude multiple pairs of name and value separated by a delimiter "&"

For example if in a form whose method is GET, if the form is submitted, the URL will look like this:
https://www.thwebdesk.blogspot.com/?name1=value1&name2=value2&name3=value3

If the value contains special charcaters that have a certain meaning in a context and encoded to %(2 digit hexadecimal number)
For example: If the name = "Gaurav" and value = "S'hirodkar"
The HTTP request URL will be https://www.thewebdesk.blogspot.com?name=Gaurav&value=S%3Ehirodkar
meaning that the sppecial character apostrophe has been converted to its ASCII code in Hexadecimal notation preceded by a % sign
The only exception to this rule is the space character

If the value contains spaces, they are encoded to + or %20.
For example, below both URLs are the same
  1. https://www.thewebdesk.blogspot.com/?name=Gaurav+Shirodkar
  2. https://www.thewebdesk.blogspot.com/?name=Gaurav%20Shirodkar

Since URL's are not case-sensitive abnd query parameters are the part of an URL the query parameret "name" are also not case-sensitive

For example below both URLs are the same
  1. htttps://www.thewebdesk.blogspot.com/?name=Gaurav
  2. https://www.thewebdesk.blogspot.com/?Name=Gaurav
name is same as Name but gaurav is not same as Gaurav

Comments

Post a Comment

Popular posts from this blog

XPath for HTML markup

-
XPath Web Scraping Web Scraping is a technique to traverse the DOM (Document Object Model) of an HTML or an HTTP web page Web Scraping is achieved due to XPath XPath nodes: There are seven kinds of nodes Element - It represents any HTML 5 element. For example, <strong></strong> Attribute - It represents any one attribute of any HTML 5 element in the document object model Text - It represents the text between the opening HTML 5 tag and a closing HTML 5 tag Namespace - It represents the pseudo selector of an HTML 5 element Processing-Instructions Comment - It represents any HTML 5 comment It represents the topmost element of the tree is called the root element. For example, the root element for any HTNL 5 document is HTML The first XPath node is \ which Suppose, I have an HTML5 code snippet as follows: Gaurav Shirodkar Then to ...
Read more

Apache Hadoop | Running MapReduce Jobs

-
Image
Apache Hadoop | Running MapReduce Jobs After setting up your environment and running the HDFS and YARN daemons, we can start working on running MapReduce jobs on our local machine. We need to compile our code, produce a JAR file, move our inputs, and run a MapReduce job on Hadoop. Step 1 - Configure extra environment variables As a preface, it is best to setup some extra environment variables to make running jobs from the CLI quicker and easier. You can name these environment variables anything you want, but we will name them HADOOP_CP and HDFS_LOC to not potentially conlict with other environment variables. Open the Start Menu and type in 'environment' and press enter. A new window with System Properties should open up. Click the Environment Variables button near the bottom right. HADOOP_CP environment variable This is used to compile your Java files. The backticks (eg. `some command here`) do not work on Win...
Read more

Laravel | PHP | Basics | Part 2

-
Image
Learning Laravel through Screenshots Caching Laravel by default supports multiple cache stores like memcached , redis ,etc. To install redis as a cache store, you should use composer install predis/predis predis stands for PHP redis The default port number is 6379 Every Cache store requires a prefix which is stored in the ENV file or in the config/cache.php Following are the cache stores supported by laravel Blade Templates Blade is a templating engine for views in laravel. All the files which are of type blade.php are having the extension .blade.php They are stored in the resources/views directory YOu can create suub-folders in the reosurces/views directory like layouts for all the common UI components lke header , footer, sidebar , navbar, menubar, serach bar, etc. To include the parenet ...
Read more