I need a stable, robust, with easy learning curve, fast API backend framework in node js ( only apy backend service because i have already my react frontend framework).i read that in this moment the best are Sails js and loopback. My project is a production project so i need to understand in this moment what framework between sails and loopback is more stable. what is the best for you considered the props mentioned at the begin of my message ?
Loopback has large overhead for everything and does not handle associations good.
SailsJS has its own weakness but in my opinion, it is easier and better to make it 'your own' as it is still Express based and it is not messing enough to make you troubles with putting your own services etc.
I found Loopback as overthought. It should be simple API framework but it is massive and not easy to work with.
UPDATE: January 2021 I do not recommend using Sails anymore, as it is not actively developed anymore. There are better alternatives like e.g. NestJS