JQ Streaming API

Low level JQ API. First create a program using a `query` and `flags` and then feed pieces of data.

Usage

jqr_new(query, flags = jq_flags())

jqr_feed(jqr_program, json, unlist = TRUE, finalize = FALSE)

Arguments

query

string with a valid jq program

flags

See jq_flags

jqr_program

object returned by [jqr_new]

json

character vector with json data. If the JSON object is incomplete, you must set `finalize` to `FALSE` otherwise you get an error.

unlist

if `TRUE` returns a single character vector with all output for each each string in `json` input

finalize

completes the parsing and verifies that the JSON string is valid. Set this to `TRUE` when feeding the final piece of data.

Examples

program <- jqr_new(".[]")
jqr_feed(program, c("[123, 456]", "[77, 88, 99]"))
#> [1] "123" "456" "77"  "88"  "99" 
jqr_feed(program, c("[41, 234]"))
#> [1] "41"  "234"
jqr_feed(program, "", finalize = TRUE)
#> character(0)