Google Custom Search - Add/remove sites to search dynamically - google-custom-search

Question

Google Custom Search has a feature to specify the sites you want the search engine to search - "Sites to search" feature.
I have a requirement to add/remove these sites on the fly. Is there any api or any other way provided by Google with which I can achieve this?

Answer 1

Here you can find the relevant information:
https://developers.google.com/custom-search/docs/tutorial/creatingcse
To create a custom search engine:
Sign into Control Panel using your Google Account (get an account if you don't have one).
In the Sites to search section, add the pages you want to include in your search engine. You can include any sites you want, not just
the sites you own. You can include whole site URLs or individual pages
URLs. You can also use URL patterns.
https://support.google.com/customsearch/answer/71826?hl=en
URL patterns
URL patterns are used to specify what pages you want included in your
custom search engine. When you use the control panel or the Google
Marker to add sites, you're generating URL patterns. Most URL patterns
are very simple and simply specify a whole site. However, by using
more advanced patterns, you can more precisely pick out portions of
sites.
For example, the pattern 'www.foo.com/bar' will only match the single
page 'www.foo.com/bar'. To cover all the pages where the URL starts
with ' www.foo.com/bar', you must explicitly add a '' at the end. In
the form-based interfaces for adding sites, 'foo.com' defaults to
'.foo.com/*'. If this is not what you want, you can change it back in
the control panel. No such defaulting occurs for patterns that you
upload. Also note that URLs are case sensitive - if your site URLs
include capital letters, you'll need to make sure your patterns do as
well.
In addition, the use of wildcards in URL patterns allows you to
include or exclude multiple pages or portions of a site all at once.
So, basically you've to navigate to the "Sites to search section" and enter the needed sites there. If you want to change these site on the fly, you've to manipulate your URL pattern.
There's also an option to use the XML configuration files. You just have to add (or remove) your sites there:
https://developers.google.com/custom-search/docs/annotations
Annotations: The annotations XML file lists the webpages or websites
you want your search engine to cover, and indicates any preferences
you have about how these sites should be ranked in your search
results. Each site and its associated information is called an
annotation. More information about the annotations XML file.
An example for an annotation:
<Annotation about="http://www.solarenergy.org/*">
<Label name="_cse_abcdefghijk"/>
</Annotation>

Answer 2

Using api we can add filter "siteSearch"=>"somedmain.com somdomain2.com","siteSearchFilter"=>"e" but there will be spacing between seperate domains.