redoc/src/components/ApiLogo/ApiLogo.tsx

import { observer } from 'mobx-react';
import * as React from 'react';
import { OpenAPIInfo } from '../../types';
import { LogoImgEl, LogoWrap } from './styled.elements';

const LinkWrap = url => Component => <a href={url}>{Component}</a>;

@observer
export class ApiLogo extends React.Component<{ info: OpenAPIInfo }> {
  render() {
    const { info } = this.props;
    const logoInfo = info['x-logo'];
    if (!logoInfo || !logoInfo.url) {
      return null;
    }

    const logo = (
      <LogoImgEl src={logoInfo.url} style={{ backgroundColor: logoInfo.backgroundColor }} />
    );
    return (
      <LogoWrap>
        {info.contact && info.contact.url ? LinkWrap(info.contact.url)(logo) : logo}{' '}
      </LogoWrap>
    );
  }
}