D&D 5E If a sorcerer quickened booming blade and and used there action to swing with the sword does have the effects of booming blade

[TrueBagelMan]

Does extra attack also get it?

 

[MarkB]

No. The spell has a duration of one round, but that duration applies to the creature you hit with the weapon, not the weapon itself.

 

[Paul Farquhar]

No, Booming Blade is a spell. The fact that you have to make an attack roll as part of the spell in no way interacts with the "attack" action.