Optional header field

[mladendinev]

I'm processing a csv file with X number of columns which are not all mandatory i.e some of them are optional.

 csv.asCsvReader[Foo](rfc.withHeader)

  object Foo {
    implicit val FooDecoder: HeaderDecoder[Foo] =
      HeaderDecoder
        .decoder(
            "Mandatory1",
            "Mandatory2",
            "Optional1"
        )(Foo.apply)
  }

When Optional1 is missing from the csv header and there is no data respectively for that field, I'm getting "Missing header for Optional1". How can I prevent this error and handle it properly?

[nrinaudo]

I think, at the moment, you're kind of stuck. Those are two different formats, as far as kantan.csv is concerned. You can have optional data, but not optional headers.

[Jsebayhi]

@nrinaudo Hi, we are considering using this lib at work and this would be a very useful feature, especially for historical data reprocessing any plan on implementing it ?