CreateMerchant create a merchant in the postgres db.

CreateTeam create a team in the postgres db.

DeleteMerchant delete merchant's detail in the postgres db.

DeleteTeam delete team's detail in the postgres db.

GetAllMerchant will return all the merchants.

GetAllTeam will return all the teams.

GetMerchant will return a single merchant by its id.

GetTeam will return a single team by its id.

GetTeamsForMerchant return Teams related to given merchantID.

UpdateMerchant update merchant's detail in the postgres db.

UpdateTeam update team's detail in the postgres db.