add song.spec

getting flow

test passing with jwt

test for user.graphql

helper for graphql

nested resolvers

console.log(JSON.stringify(playlist, null, 2));

mutation removesong

object rest/spread properties

mutation for user, song & playlist

throw error in song resolver

add song & playlist resolver & link to graphQLRouter

add playlist.graphQLRouter

add song.graphQLRouter

nested resolver for friends user