1
You need to start emulation using this below code :
$this->appEmulation->startEnvironmentEmulation($storeId, \Magento\Framework\App\Area::AREA_FRONTEND, true);
After that, you can get product image full url in your rest api.
For more details : Click Here
Hope, It will helpful for you.
1
just remove the css of background color
http://prntscr.com/tp1s0v
or you can assign background color to none
1
You can hard code the hash as it depends only on the image target format and mostly does not change.
Only top voted, non community-wiki answers of a minimum length are eligible
