CborToJson()

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Converts CBOR (Concise Binary Object Representation) binary data directly to a JSON string, without going through CFML types first. Useful when you receive CBOR from an external system and need to pass it on as JSON — for example, logging or forwarding WebAuthn attestation data to a JSON API.

Requires Extension: Crypto Extension

CborToJson( data=any );

Returns: String

Argument Description
data
any, required 		edit

CBOR-encoded binary data

Usage Notes

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

Binary data: CBOR byte strings are base64-encoded in the JSON output, since JSON has no native binary type.

Integer keys: CBOR integer keys (like those in COSE maps) are converted to JSON string keys, since JSON only supports string keys.

Examples

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// Convert CBOR binary data directly to a JSON string
// A more direct alternative to serializeJSON( CborDecode( cbor ) )

cbor = CborEncode( { name: "test", value: 42 } );
json = CborToJson( cbor );
// json is a valid JSON string: {"name":"test","value":42}

// Convert a CBOR array to JSON
cbor = CborEncode( [ 1, "two", 3 ] );
json = CborToJson( cbor );
// [1,"two",3]

// Practical use: log WebAuthn attestation data as JSON for debugging
attestationCbor = Base64UrlDecode( response.attestationObject );
echo( CborToJson( attestationCbor ) );

See also