@gravatar/js/lib/es/gravatar.js

Typescript friendly, email to gravatar generator which works seamlesly in Node, Browser and in Electron

import md5 from 'md5';
const BASE_URL = '://www.gravatar.com/avatar/';
// when a protocol is not provided check. If the code is running in a browser with https protocol use 'https', else use 'http'
const getProtocol = (protocol) => {
    if (protocol)
        return protocol;
    if (window && window.location && (window.location.protocol === 'http' || window.location.protocol === 'https'))
        return window.location.protocol;
    return 'http';
};
function getQueryStringWithOptions(options) {
    const { size, defaultImage } = options;
    let queryString = '?';
    if (size)
        queryString += `s=${size}&`;
    if (defaultImage)
        queryString += `d=${defaultImage}&`;
    if (queryString.endsWith('&') || queryString.endsWith('?')) {
        return queryString.substr(0, queryString.length - 1);
    }
    return queryString;
}
export function Gravatar(options) {
    const emailHash = options.md5Hash || md5(options.email.trim().toLowerCase());
    const urlProtocol = getProtocol(options.protocol);
    const queryString = getQueryStringWithOptions(options);
    return `${urlProtocol}${BASE_URL}${emailHash}${queryString}`;
}
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