Extended BASE64URL Encoder

This is a self-contined BASE64URL encoder and decoder that is compatible not only with Node.JS but also other runtimes such as React Native. The target is not the highest possible performance, but instead high compatibility and direct API to encode and decode between different import/export formats like raw strings, hexadecimal strings, and arrays.

Reference

b64ux.encode(input, format)

Encodes the input to BASE64URL string.

Argument input is either a string or array or typed array (Uint8Array or Int8Array).

Format can be omitted, in which case string input is handled as a raw string and array or typed array input is handled as a array of integers each of which represents one byte of input.

Allowed format values are 'string', 'hex', 'array', 'uint8array', and 'int8array'. If a format is given, it must match the input value. Format 'hex' stands for input string which is encoded as in hexadecimal.

Returns the input encoded as BASE64URL string.

b64ux.decode(input, format)

Encodes the BASE64URL string submitted as input.

Argument input is a string.

Format can be omitted, in which case the output will default to 'string'.

Allowed format values are 'string', 'hex', 'array', 'uint8array', and 'int8arry'. Format 'string' returns the decoded data as a raw string. Format 'hex' returns the decoded data as hexadecimal string. Formats 'array', 'uint8array', and 'int8array' return the decoded data as an Array, UInt8Array or Int8Array respectively. All array formats are arrays of integers in which each integer represents one output byte.

Author

Timo J. Rinne tri@iki.fi

License

MIT License