# avro-crc64 API

## fingerprint64AvroSchema(schemaString: string): Promise<Uint8Array>
 fingerprint64AvroSchema returns a promise which resolves to a Rabin 64-bit crc fingerprint as 8 byte [Uint8Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array).

### Parameters
- schemaString<string>: [Apache AVRO](https://avro.apache.org/docs/current/) schema in string representation

### Returns
- Promise<Uint8Array>: 64-bit fingerprint

### Errors
The returned promise will reject with:
- AvroSchemaStringSyntaxError<Error>: In case parsing of schemaString fails with a SytaxError Exception
- InvalidAvroSchemaError<Error>: In case a [AVSC](https://github.com/mtth/avsc) AVRO Type could not be instantiated with parsed schemaString object.