So i am planting a new fig tree in arizona and it was looking good for the first week or so but now the leaves are starting to curl and fall off... I have it potted in a 15 gallon bucket and watering it about every 3 days. it is averaging anywhere from 105 to 115 here and just wondering if that is enough of water for the fig tree. also should I be alarmed that the leaves are falling off or is it from root shock from being transported into a container? I have planted fig trees in the ground but never in a pot and have never came across this problem before. Any and all advice would be helpful.

you can buy a moisture meter, but if you jamb your index finger into the pot, that will tell you all you need to know.
partial shade is a good idea for a month or so.

I'm here in Phoenix, Az. When it got over 100°, some of my potted Figs started turning yellow and leaves dropping. I moved them to get only the eastern sun and gave them more water, about 2x a week. But the plant and leaves are sprinkled daily around 6am for a few minutes. They are all mulched and the young trees shaded. They are all doing well and seem happy.