| fromJSON {jsonlite} | R Documentation |
These functions are used to convert between JSON data
and R objects. The toJSON and fromJSON functions use a
class based mapping, which follows conventions outlined
in this paper:https://arxiv.org/abs/1403.2805(also
available as vignette).
fromJSON(txt,
simplifyVector = TRUE,
simplifyDataFrame = TRUE,
simplifyMatrix = TRUE,
flatten = FALSE,
... = NULL);The toJSON and fromJSON functions are drop-in replacements for the identically named functions in packages rjson and RJSONIO. Our implementation uses an alternative, somewhat more consistent mapping between R objects and JSON strings. The serializeJSON and unserializeJSON functions in this package use an alternative system to convert between R objects and JSON, which supports more classes but is much more verbose. A JSON string is always unicode, using UTF-8 by default, hence there is usually no need to escape any characters. However, the JSON format does support escaping of unicode characters, which are encoded using a backslash followed by a lower case "u" and 4 hex characters, for example: "Z\u00FCrich". The fromJSON function will parse such escape sequences but it is usually preferable to encode unicode characters in JSON using native UTF-8 rather than escape sequences.