It depends on your Functional and Business requirement and scale of interactions.   If you're making simple HTTP requests and don't need advanced features, Go with Java's built-in HttpURLConnection might be sufficient. If you need more advanced features, or if you're building a large-scale applicati...

AEM Prefers this hierarchy   Java™ API preference “rule of thumb” The general rule is to prefer the APIs/abstractions the following order: AEMSlingJCROSGi Please go through these articles / documentation for more details: https://www.linkedin.com/pulse/aem-apis-application-programming-interfaces-sur...

User Interface of input text box and search button - you can use front end (JS and CSS) for search and filters you have to build backend logic Use Querybuilder API for search functionality.   https://medium.com/@manumathew28.94/query-builder-aem-5869a1850c85   Query Builder is a high-level API built...

is the .svg having correct properties? can you open the .svg image in browser and check properties? width / height etc?

Check logs for any errors - it will show the missing references.

Is this component running ? can you check in <> /system/console/components 

do you mean latest CSS changes are not showing up in dispatcher or author preview mode?

can you try removing package-lock.json file and re run/

Please see this thread When data is retrieved from remote servers (which is only possible using the script or jsonp data types), the error callbacks and global events will never be fired.   https://stackoverflow.com/questions/14370678/jquery-getjson-error-isnt-being-executed-on-404-error/14371049#14...

Is it giving any error when running this query code? or Zero results ? Please check the logs and permissions of the user logged in to run this query