BinData()

Insert a BinData() Object

Use the BinData() constructor to create the bdata variable.

var bdata = BinData(0, "gf1UcxdHTJ2HQ/EGQrO7mQ==")

Insert the object into the testbin collection.

db.testbin.insertOne( { _id : 1, bin_data: bdata } )

Query the testbin collection for the inserted document.

db.testbin.find()

You can see the binary buffer stored in the collection.

{
  _id: 1,
  bin_data: Binary(Buffer.from("81fd547317474c9d8743f10642b3bb99", "hex"), 0)
}

Get the Length of BinData() Object

Use the BinData() constructor to create the bdata variable.

var bdata = BinData(0, "gf1UcxdHTJ2HQ/EGQrO7mQ==")

Use .length() to return the bit length of the object.

bdata.length()

The returned value is:

16