Breaking News: Grepper is joining You.com. Read the official announcement!

Fixing JSON encoding issues#

Sumit Rawal answered on May 23, 2023 Popularity 1/10 Helpfulness 1/10

answer Fixing JSON encoding issues#

Fixing JSON encoding issues#

Comment

If we think about it, this looks like a bug in http4s. We find an issue for it because the underlying problem is not as trivial as it initially sounds.

Maybe we can try to work around the issue. The fs2 API offers concatenation of streams and the nifty intersperse function to insert elements between emitted ones. Let’s give it a try.

case GET -> Root / "products" =>
  val prefix = Stream.eval("[".pure[F])
  val suffix = Stream.eval("]".pure[F])
  val ps = repo.loadProducts
    .groupAdjacentBy(_._1)
    .map {
      case (id, rows) => Product.fromDatabase(rows.toList)
    }
    .collect {
      case Some(p) => p
    }
    .map(_.asJson.noSpaces)
    .intersperse(",")
  @SuppressWarnings(Array("org.wartremover.warts.Any"))
  val result: Stream[F, String] = prefix ++ ps ++ suffix 
  Ok(result)

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: encoding javascript json

Link to this answer
Share Copy Link

Contributed on May 23 2023

Sumit Rawal

0 Answers Avg Quality 2/10

Fixing JSON encoding issues#

Contents

More Related Answers

Fixing JSON encoding issues#

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.