zebra_discovery_b64

Description:

zebra discovery b64

zebra_discovery_b64 #
This library decodes the discovery_b64 message that Zebra printers will send when they connect to a websocket endpoint, also named WebLink in the Zebra documentation.
Online demo
Features #

Decodes the raw base64 string into an easy to use strongly typed class.
For backwards compatibility, the decoded value has a property discoveryDataMap that has the same entries as the Zebra SDK provides with the getDiscoveryDataMap() function.
The decode process preserves the original source bytes per item.
Each decoded item has an error value. This indicates if errors were encountered while decoding.
A discovery object has an error property that can be used to test if there was an error while decoding.
A discovery object can be serialized to json for easy further processing

Getting started #
Add this package to your pubspec.yaml.
Usage #
final discoveryB64 = "OiwuBAUBAAFaQlIAAEQzSjE5MzIwNjcyMgAAA....";

final discovery = Discovery.fromDiscoveryB64(discoveryB64);
copied to clipboard
The discovery variable can be an instance of one of these types.

DiscoveryLegacy
DiscoveryAdvancedV0
DiscoveryAdvancedV1
DiscoveryAdvancedV2
DiscoveryAdvancedV3
DiscoveryAdvancedV4

The DiscoveryAdvancedV4 is used for versions 4 and higher.
The actual type depends on version information provided in the discovery_b64 message.
Additional information #
This code aims compatibility with

Link-OS multiplatform SDK 2.15.1
WebServices v. 2.14.5198

Samples of decoded messages can be found in the test_resources folder.