JsonToCbor()

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Converts a JSON string directly to CBOR (Concise Binary Object Representation) binary data. This is a shortcut when you already have JSON and want CBOR — it avoids the overhead of deserialising to CFML types first.

Requires Extension: Crypto Extension

JsonToCbor( json=string );

Returns: binary

Argument Description
json
string, required 		edit

JSON string to convert

Usage Notes

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This converts directly from JSON to CBOR using the underlying library — it does not go through CFML types, avoiding the intermediate conversion step of CborEncode( deserializeJSON( json ) ).

Key types: JSON keys are always strings, so JsonToCbor produces CBOR text-string keys. If you need CBOR integer keys (e.g. for COSE), use CborEncode() with a CFML struct instead — it converts numeric-looking string keys to CBOR integers automatically.

Examples

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// Convert JSON directly to CBOR binary data
json = '{"name":"test","value":42}';
cbor = JsonToCbor( json );
// cbor is binary CBOR data
// Verify the roundtrip
backToJson = CborToJson( cbor );
parsed = deserializeJSON( backToJson );
// parsed.name == "test", parsed.value == 42
// Convert a JSON array
cbor = JsonToCbor( '[1,2,3,"four"]' );
// Encode existing API response data as CBOR for a system that expects it
apiResponse = '{"status":"ok","data":[1,2,3]}';
cborPayload = JsonToCbor( apiResponse );
// Send cborPayload to a CBOR-expecting endpoint

See also