Class QRCodeGenerator

constructor

• new QRCodeGenerator(config?: QRCodeConfigParams): QRCodeGenerator

  Creates a new QRCodeGenerator instance.

  Parameters

  • config: QRCodeConfigParams = {}

    Optional QR code configuration parameters

  Returns QRCodeGenerator

Readonlyconfig

chunkJWS

• chunkJWS(jws: string): string[]

  Splits JWS into balanced chunks for multi-QR encoding.

  Parameters

  • jws: string

    JWS string to chunk

  Returns string[]

  Array of chunked QR code strings in SMART Health Cards format

decodeNumericToJWS

• decodeNumericToJWS(numericData: string): string

  Converts numeric data back to JWS string.

  Parameters

  • numericData: string

    Numeric string to decode

  Returns string

  Decoded JWS string

  Throws

  QRCodeError When numeric data is malformed or out of range

decodeQR

• decodeQR(qrCodeData: string[]): Promise<string>

  Reconstructs JWS from QR code data.

  Parameters

  • qrCodeData: string[]

    Array of QR code numeric strings

  Returns Promise<string>

  Promise resolving to reconstructed JWS string

  Throws

  QRCodeError When QR code data is missing or malformed

encodeJWSToNumeric

• encodeJWSToNumeric(jws: string): string

  Converts JWS to SMART Health Cards numeric format.

  Parameters

  • jws: string

    JWS string to convert

  Returns string

  Numeric string representation

  Throws

  QRCodeError When JWS contains non-base64url characters

generateQR

• generateQR(jws: string): Promise<string[]>

  Generates QR code data URLs from a JWS string.

  Parameters

  • jws: string

    JWS string to encode

  Returns Promise<string[]>

  Promise resolving to array of QR code data URLs

  Throws

  QRCodeError When JWS contains invalid characters or chunking constraints are violated