NAME

       json2cbor - convert JSON formatted text to CBOR

SYNOPSIS

         json2cbor test.json > test.cbor

DESCRIPTION

       json2cbor  output  a  CBOR  data  stream  for an input set of files.  The files can either
       consist of a single JSON item, or an RFC 7464 https://tools.ietf.org/html/rfc7464  encoded
       JSON  text  series.   In  the latter case, each JSON item starts with the byte "1e" (hex),
       "30" (dec), otherwise known as "Record Separator" (RS), and finishes with a newline.

       An example sequence:

         ␞{"d":"2014-09-22T21:58:35.270Z","value":6}

         ␞{"d":"2014-09-22T21:59:15.117Z","value":12}

       You can generate a sequence like this from a newline-separated JSON file like this:

         sed -e s/^/\x1e/g [FILE]

       (note: your shell might need $'' around the sed pattern to work.  I'll  look  for  a  more
       shell-inspecific way of encdoding this later.)

       The  reason  I'm  making  you  go  through  this pain is that more of your JSON items have
       newlines embedded in them than you think.  Ideally, you would write your files  out  using
       RFC 7464, and you'd also get some of the benefits of that format, including:

       • Detect a truncated file due to a process dying in the middle of writing your data.

       • Recovery while parsing from such a truncated file that was later appended to.

       • Detect when multiple processes are writing to the same file in an uncoordinated way.

       • Maintain newlines in your JSON.  They'll sneak in there anyway.

OPTIONS

       -: read from stdin instead of a file.  This is the default.

       -c, --canonical:  Canonical output

       -x, --hex: output a hex-encoded version of the CBOR data, instead of the native
         CBOR data

       -V, --version: print the node-cbor version and exit

       -h, --help: print some help text and exit

SEE ALSO

       • node-cbor https://github.com/hildjj/node-cbor

       • RFC 8949 https://www.rfc-editor.org/rfc/rfc8949.html

                                            June 2022                                JSON2CBOR(1)