@iexec/web3telegram/dist/utils/resolveDappAddressFromCompass.js

Enables secure, blockchain-based messaging by encrypting Telegram user IDs for privacy. It lets users message Ethereum account holders without knowing their Telegram details.

import { CompassCallError } from 'iexec/errors';
export async function resolveDappAddressFromCompass(compassUrl, chainId) {
    if (!compassUrl) {
        return undefined;
    }
    return (fetch(`${compassUrl}/${chainId}/iapps/web3telegram`)
        // Handle network errors
        .catch((error) => {
        throw new CompassCallError(`Connection to ${compassUrl} failed with a network error`, error);
    })
        // Handle server errors
        .then((response) => {
        if (response.status >= 500 && response.status <= 599) {
            throw new CompassCallError(`Server at ${compassUrl} encountered an internal error`, Error(`Server internal error: ${response.status} ${response.statusText}`));
        }
        return response;
    })
        // Handle unexpected response formats
        .then((response) => {
        if (response.status !== 200) {
            throw new Error(`Failed to fetch dapp address from compass: ${response.statusText}`);
        }
        const contentType = response.headers.get('Content-Type');
        if (!contentType || contentType.indexOf('application/json') === -1) {
            throw new Error('Failed to fetch dapp address from compass: response is not JSON');
        }
        return response.json();
    })
        .then((data) => {
        if (!data || !data.address) {
            throw new Error(`No dapp address found in compass response`);
        }
        return data.address;
    }));
}
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