Merge pull request #428 from turb/drop-null-values

Drop JSON null values on streams

Author: TSommerdal

core/src/main/scala/no/nrk/bigquery/util/StreamUtils.scala

@@ -23,7 +23,7 @@ object StreamUtils {
   def toLineSeparatedJsonBytes[F[_]: Sync, A: Encoder](
       chunkSize: Int
   ): Pipe[F, A, Chunk[Byte]] =
-    _.map(_.asJson.noSpaces)
+    _.map(_.asJson.dropNullValues.noSpaces)
       .intersperse("\n")
       .through(fs2.text.utf8.encode)
       .through(Compression.forSync[F].gzip())