  In this work we study deBranges-Rovnyak spaces, $H(b)$, on the unit ball of
$\mathbb{C}^n$. We give an integral representation of the functions in $H(b)$
through the Clark measure on $S^n$ associated with $b$. A characterization of
admissible boundary limits is given in relation with finite angular
derivatives. Lastly, we examine the interplay between Clark measures and
angular derivatives showing that Clark measure associated with $b$ has an atom
at a boundary point if and only if $b$ has finite angular derivative at the
same point.
