ada_handle 1.0.1

ada_handle: ^1.0.1 copied to clipboard

A Flutter package containing conversion operations for ADA Handles ($handle)

Features #

• Checks if given policyId matches a $handle policyId
• Converts specific $handle value into $handle policyId + assetId HEX combination
• Prepends $handle policyId to given HEX asset value

Getting started #

If you not yet familiar with ADA Handle please visit official page https://adahandle.com/

Installation #

Run flutter pub add ada_handle

Run flutter pub get

Usage #

Import package import 'package:ada_handle/ada_handle.dart';

final String handle = 'walmart';
String policyIdAssetId = AdaHandle.getPolicyAssetHexCombination(handle);
print(policyIdAssetId);

Output: f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a77616c6d617274

Pass this value to get back asset information, for example with the Blockfrost API

The following request reads the data from Cardano Mainnet for ADA Handle "walmart"

Attention! HTTP header of your request MUST include the project_id in order to authenticate against Blockfrost servers

https://cardano-mainnet.blockfrost.io/api/v0/assets/f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a77616c6d617274

The Response would look like this:

{
    "asset": "f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a77616c6d617274",
    "policy_id": "f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a",
    "asset_name": "77616c6d617274",
    "fingerprint": "asset1fg63wnn88nya4gjvythkafe0nl3y3uvkqygek2",
    "quantity": "1",
    "initial_mint_tx_hash": "f9c13bb4e57d6006ab615d7ded6161bf4c58594b00e68f6276ccdefe9cb14a9d",
    "mint_or_burn_count": 1,
    "onchain_metadata": {
        "core": {
            "og": 0,
            "prefix": "$",
            "version": 0,
            "termsofuse": "https://adahandle.com/tou",
            "handleEncoding": "utf-8"
        },
        "name": "$walmart",
        "image": "ipfs://Qme8ztELAjaNpPHYSV4pwPrssQ4yiYrsnsZafWNJFRVRty",
        "website": "https://adahandle.com",
        "description": "The Handle Standard",
        "augmentations": []
    },
    "onchain_metadata_standard": "CIP25v1",
    "metadata": null
}

Additional information #

Check also the test use cases test file

Contribution #

You are very welcome to contribute to the package:

• Fork the Repo
• Add your changes (don't forget to add tests as well)
• Create a Pull Request (PR)

We will check your input asap

Publisher #

Created by AndroDevs @2022

Follow us on Twitter AndroDevs

Disclaimer #

Support for this library is given as best effort.

This library has not been reviewed or vetted by security professionals.