Use groovy script to achieve this-Refer this link-https://hashimkhan.in/aem-adobecq5-code-templates/groovy-script/ You need to write a query to achive this. 

These  lines are for injecting analytics script code in header and footer. Check aem launch integration.

1.Create a background image component it will act as a container.2. Add a layout container component inside background container component using data dly include.3. Drag and drop image container component on your template.4. Once you drag and drop that componrnt a parsys will come where you can add ...

Yes so you can easily achieve this feature through scheduler.You can add a cron job which will run on daily basis.Through config you can change the expression whenever you want to run it again.Even if you want to hit it manually then create one servlet and call your service to call rest api and do a...

I would suggest the following-1. Create page component with common clientlibs2. Create a template type using page component & template editor.3.create templates for your brands and content author the clientlib specific to that brand through page design (check template editor page design)4. In this w...

Try to reindex the oak index nodes on dev box and check.

If possible can u add your code here so that i can try at my end?

You need to allow a url for 'Banner.jpg.transform" because this is not allowed in dispatcher you have to allow this kind of expression.

Few questions before you implement a scheduler- 1. How frequently you will call rest api.2. How frequently data could change from rest api. 

Try to upload the asset manually with the same name (with timestamp and all)and data and see are you able to upload