configuration makefile and dataconnect init

dataconnect/schema/schema.gql

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+# Example schema for simple movie review app
+
+# User table is keyed by Firebase Auth UID.
+type User @table {
+  # `@default(expr: "auth.uid")` sets it to Firebase Auth UID during insert and upsert.
+  id: String! @default(expr: "auth.uid")
+  username: String! @col(dataType: "varchar(50)")
+  # The `user: User!` field in the Review table generates the following one-to-many query field.
+  #  reviews_on_user: [Review!]!
+  # The `Review` join table the following many-to-many query field.
+  #  movies_via_Review: [Movie!]!
+}
+
+# Movie is keyed by a randomly generated UUID.
+type Movie @table {
+  # If you do not pass a 'key' to `@table`, Data Connect automatically adds the following 'id' column.
+  # Feel free to uncomment and customize it.
+  #  id: UUID! @default(expr: "uuidV4()")
+  title: String!
+  imageUrl: String!
+  genre: String
+}
+
+# MovieMetadata is a metadata attached to a Movie.
+# Movie <-> MovieMetadata is a one-to-one relationship
+type MovieMetadata @table {
+  # @unique ensures each Movie can only one MovieMetadata.
+  movie: Movie! @unique
+  # The movie field adds the following foreign key field. Feel free to uncomment and customize it.
+  #  movieId: UUID!
+  rating: Float
+  releaseYear: Int
+  description: String
+}
+
+# Reviews is a join table between User and Movie.
+# It has a composite primary keys `userUid` and `movieId`.
+# A user can leave reviews for many movies. A movie can have reviews from many users.
+# User  <-> Review is a one-to-many relationship
+# Movie <-> Review is a one-to-many relationship
+# Movie <-> User is a many-to-many relationship
+type Review @table(name: "Reviews", key: ["movie", "user"]) {
+  user: User!
+  # The user field adds the following foreign key field. Feel free to uncomment and customize it.
+  #  userUid: String!
+  movie: Movie!
+  # The movie field adds the following foreign key field. Feel free to uncomment and customize it.
+  #  movieId: UUID!
+  rating: Int
+  reviewText: String
+  reviewDate: Date! @default(expr: "request.time")
+}