Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
flatpak-libs
flatpak-libs(x86-64)
libflatpak.so.0()(64bit)
xdg-app-libs(x86-64)

Requires :

libc.so.6()(64bit)
libc.so.6(GLIBC_2.6)(64bit)
libseccomp.so.2()(64bit)
libarchive.so.13()(64bit)
rtld(GNU_HASH)
libjson-glib-1.0.so.0()(64bit)
libgio-2.0.so.0()(64bit)
libgcc_s.so.1(GCC_3.3.1)(64bit)
libostree-1.so.1()(64bit)
libXau.so.6()(64bit)
libgcc_s.so.1(GCC_3.0)(64bit)
rpmlib(PayloadIsXz) <= 5.2-1
libgobject-2.0.so.0()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libostree-1.so.1(LIBOSTREE_2016.8)(64bit)
libostree-1.so.1(LIBOSTREE_2016.3)(64bit)
libostree-1.so.1(LIBOSTREE_2016.4)(64bit)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpthread.so.0()(64bit)
flatpak(x86-64) = 0.8.7-1.el7
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
libc.so.6(GLIBC_2.7)(64bit)
libsoup-2.4.so.1()(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libglib-2.0.so.0()(64bit)
libc.so.6(GLIBC_2.3)(64bit)
libgcc_s.so.1()(64bit)
libc.so.6(GLIBC_2.11)(64bit)
libostree-1.so.1(LIBOSTREE_2016.5)(64bit)
/sbin/ldconfig

Content of RPM :
/usr/lib64/libflatpak.so.0
/usr/lib64/libflatpak.so.0.800.7
/usr/share/licenses/flatpak-libs-0.8.7
/usr/share/licenses/flatpak-libs-0.8.7/COPYING