I am using `json` serialization/de-serialization and one of my usecase requires me to `POST` `nd-jso...

# serialization

[Ahmed]

I am using json serialization/de-serialization and one of my usecase requires me to POST nd-json format (multi-query search on elastic search). Any hint or idea on how I can achieve the behaviour?

[Daniel Pitts]

Probably write your own body content provider, that outputs each item separated by lines.

[Daniel Pitts]

What http client are you using? Ktor? Something else?

[Ahmed]

I am using Retrofit (okhttp)

[Daniel Pitts]

I’m not familiar with retrofit, so you’ll have to find the correct api yourself, but see if there is a way to produce a custom request body.

[Ahmed]

Resolved to using source query param. The passed param conforms to application/x-ndjson . The workaround is

List<JsonObject>.joinToString("\n", suffix = "\n", transform = { jsonObject -> jsonObject.toString() })

This yields the string as

{ "index": "…"}
{ /* query or aggs */ }
{ "index": "…"}
{ /* query or aggs */ }

Definitely not ideal, but works ..