@chain-registry/client/esm/registry.js

Chain Registry Client

import { ChainRegistryChainUtil } from './chain-util';
import { ChainRegistryFetcher } from './fetcher';
export class ChainRegistryClient extends ChainRegistryFetcher {
    _options = {
        chainNames: [],
        baseUrl: 'https://raw.githubusercontent.com/chain-registry/chain-registry/main/registries/original'
    };
    constructor(options) {
        const { chainNames, assetListNames, ibcNamePairs, baseUrl, ...restOptions } = options;
        super(restOptions);
        this._options = {
            ...this._options,
            chainNames: chainNames || this._options.chainNames,
            assetListNames: assetListNames || this._options.assetListNames,
            ibcNamePairs: ibcNamePairs || this._options.ibcNamePairs,
            baseUrl: baseUrl || this._options.baseUrl
        };
        this.generateUrls();
    }
    generateUrls() {
        const { chainNames, assetListNames, ibcNamePairs, baseUrl } = this._options;
        const chainUrls = chainNames.map((chain) => {
            return `${baseUrl}/${chain}/chain.json`;
        });
        const assetlistUrls = (assetListNames || chainNames).map((chain) => {
            return `${baseUrl}/${chain}/assetlist.json`;
        });
        let namePairs = ibcNamePairs;
        if (!namePairs) {
            namePairs = [];
            for (let i = 0; i < chainNames.length; i++) {
                for (let j = i + 1; j < chainNames.length; j++) {
                    namePairs.push([chainNames[i], chainNames[j]]);
                }
            }
        }
        const ibcUrls = namePairs.map((namePair) => {
            const fileName = namePair[0].localeCompare(namePair[1]) <= 0
                ? `${namePair[0]}-${namePair[1]}.json`
                : `${namePair[1]}-${namePair[0]}.json`;
            return `${baseUrl}/_IBC/${fileName}`;
        });
        this.urls = [
            ...new Set([
                ...chainUrls,
                ...assetlistUrls,
                ...ibcUrls,
                ...(this.urls || [])
            ])
        ];
    }
    getChainUtil(chainName) {
        const chainInfo = this.getChainInfo(chainName);
        return new ChainRegistryChainUtil({
            chainName: chainName,
            chainInfo: chainInfo
        });
    }
}