logger (version 0.4.3)

layout_json_parser: Generate log layout function rendering JSON after merging meta fields with parsed list from JSON message

Description

Generate log layout function rendering JSON after merging meta fields with parsed list from JSON message

Usage

layout_json_parser(fields = default_fields())

Arguments

fields

character vector of field names to be included in the JSON. If named, the names will be used as field names in the JSON.

See Also

Other log_layouts: get_logger_meta_variables(), layout_blank(), layout_gha(), layout_glue(), layout_glue_colors(), layout_glue_generator(), layout_json(), layout_logging(), layout_simple()

Examples

old <- logger:::namespaces_set()
log_formatter(formatter_json)
log_info(everything = 42)

log_layout(layout_json_parser())
log_info(everything = 42)

log_layout(layout_json_parser(fields = c("time", "node")))
log_info(cars = row.names(mtcars), species = unique(iris$Species))

log_layout(layout_json_parser(fields = c(timestamp = "time", "node")))
log_info(
  message = paste(
    "Compared to the previous example,
    the 'time' field is renamed to 'timestamp'"
  )
)
logger:::namespaces_set(old)