jq | R Documentation |
jq
is meant to work with the high level interface in this package.
jq
also provides access to the low level interface in which you can
use jq query strings just as you would on the command line. Output gets
class of json, and pretty prints to the console for easier viewing.
jqr
doesn't do pretty printing.
jq(x, ...)
## S3 method for class 'jqr'
jq(x, ...)
## S3 method for class 'character'
jq(x, ..., flags = jq_flags())
## S3 method for class 'json'
jq(x, ..., flags = jq_flags())
## S3 method for class 'connection'
jq(x, ..., flags = jq_flags(), out = NULL)
x |
|
... |
character specification of jq query. Each element in |
flags |
See |
out |
a filename, callback function, connection object to stream output. Set to 'NULL' to buffer all output and return a character vector. |
peek
'{"a": 7}' %>% do(.a + 1)
'[8,3,null,6]' %>% sortj
x <- '[{"message": "hello", "name": "jenn"},
{"message": "world", "name": "beth"}]'
jq(index(x))
jq('{"a": 7, "b": 4}', 'keys')
jq('[8,3,null,6]', 'sort')
# many json inputs
jq(c("[123, 456]", "[77, 88, 99]", "[41]"), ".[]")
# Stream from connection
tmp <- tempfile()
writeLines(c("[123, 456]", "[77, 88, 99]", "[41]"), tmp)
jq(file(tmp), ".[]")
## Not run:
# from a url
x <- 'http://jeroen.github.io/data/diamonds.json'
jq(url(x), ".[]")
# from a file
file <- file.path(tempdir(), "diamonds_nd.json")
download.file(x, destfile = file)
jq(file(file), ".carat")
jq(file(file), "select(.carat > 1.5)")
jq(file(file), 'select(.carat > 4 and .cut == "Fair")')
## End(Not run)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.