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How to optimize images for Lemmy thumbnails?
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    None of the metatags are visible with curl. How can I make them dynamic for each article and visible?

  • Lemmy Support @lemmy.ml EtAl @lemmy.dbzer0.com
    How to optimize images for Lemmy thumbnails?

    My website How do I get the thumbnails to show up when the article links are shared on Lemmy? I tried metatags, changing the aspect ratio and the image format. Nothing seems to work. Here are some of the failed results.: !theglitch@lemmy.dbzer0.com Any help would be appreciated.

    Article.tsx: ``` import React, {useEffect, useState, useContext } from "react" import { useParams, Link, useNavigate } from "react-router-dom" import { articlesData } from "../data/articles" import { styled } from "styled-components" import MetaTags from "../utils/MetaTags" import CopyLinkIconDark from "/src/assets/copyLinkDark.svg" import CopyLinkIconLight from "/src/assets/copyLinkLight.svg" import FacebookShareIconDark from "/src/assets/facebookShareDark.svg" import FacebookShareIconLight from "/src/assets/facebookShareLight.svg" import TwitterShareIconDark from "/src/assets/twitterShareDark.svg" import TwitterShareIconLight from "/src/assets/twitterShareLight.svg" import ThemeContext from "../utils/ThemeContext" import formatDate from "../utils/formatDate"

    type articlesData = { id: number; articleUrl: string; category: string; img: string; alt: string; header: string; subhead: string; author: string; datePublished: Date; articleBody: string[]; }

    const StyledHeroWrapper = styled.div position: relative;

    const StyledLogo = styled.h2 position: absolute; font-size: 4rem; text-shadow: ${({ theme }) => theme.isDarkMode ? "1px 1px 5px rgba(0, 0, 0, 0.5)" : "1px 1px 5px rgba(255, 255, 255, 0.5)"}; top: -6.3rem; left: -1rem;

    const StyledImg = styled.img max-width: 100%; margin: 0; border-radius: 5px; object-fit: cover;

    const StyledHeadline = styled.h1 font-family: "Fjalla One", sans-serif; font-weight: 400; font-style: normal; font-size: 3rem; letter-spacing: -0.05em; transform: tranlateY(-20%); max-width: 90%; word-spacing: -0.05em; line-height: 3.4rem; margin: 0;

    const StyledSubhead = styled.h3 font-family: "Source Serif 4", serif; font-optical-sizing: auto; font-weight: 400; font-style: normal; font-size: 1.5rem; letter-spacing: -0.05em; word-spacing: -0.05em; margin: 0; line-height: 1.5rem;

    const StyledArticleInfo = styled.p font-family: "Open Sans", sans-serif; font-optical-sizing: auto; font-weight: 300; font-style: normal; font-variation-settings: "wdth" 100; text-transform: uppercase;

    const StyledAuthor = styled(Link) color: ${({ theme }) => theme.isDarkMode ? "#9CE00C" : "#5200FF"}; margin-right: 1rem; text-decoration: none; &:hover { background-color: ${({ theme }) => theme.isDarkMode ? "#5200FF" : "#9CE00C"}; }

    const StyledButtonWrapper = styled.div display: flex;

    const StyledShareButton = styled.button display: flex; align-items: center; justify-content: center; width: 3rem; height: 3rem; border-radius: 50%; background-color: ${({ theme }) => theme.isDarkMode ? "#353535" : "#cacaca"}; margin-right: 1rem; border: none; &:hover { background-color: ${({ theme }) => theme.isDarkMode ? "#5200FF" : "#9CE00C"}; } a { width: 2rem; height: 2rem; display: flex; align-items: center; justify-content: center; }

    const StyledShareImgIcon = styled.img width: 2rem; height: 2rem;

    const StyledArticleBody = styled.p font-family: "Quattrocento", serif; font-weight: 400; font-style: normal; font-size: 1.2rem

    const copyLink = async () => { try { await navigator.clipboard.writeText(window.location.href); alert('Link copied to clipboard!'); } catch (err) { console.error(err); alert('Failed to copy link to clipboard!'); } }

    const Article: React.FC = () => { const { isDarkMode } = useContext(ThemeContext); const {articleUrl} = useParams() const [article, setArticle] = useState<articlesData | null>(null) const [isLoading, setIsLoading] = useState(true) useEffect(()=>{ const foundArticle = articlesData.find(articleObj => articleObj.articleUrl === articleUrl); setArticle(foundArticle ? foundArticle : null); setIsLoading(false) },[]) const navigate = useNavigate() let formattedDate = "" if(article){ formattedDate = formatDate(article.datePublished) } useEffect(()=>{ if(!article && !isLoading) { navigate('not-found') } }, [isLoading])

    return ( <> <MetaTags title={article?.header || ""} description={article?.subhead || ""} imageUrl={article?.img || ""} url={window.location.href} /> <main> <StyledHeroWrapper> <StyledLogo theme={{ isDarkMode }}>theGlitch</StyledLogo> <StyledImg src={article?.img} alt={article?.alt}/> </StyledHeroWrapper> <StyledHeadline>{article?.header}<br/></StyledHeadline> <StyledSubhead>{article?.subhead}</StyledSubhead> <StyledArticleInfo> <StyledAuthor theme={{ isDarkMode }} to={/profiles} aria-label={to profiles} >{article?.author}</StyledAuthor> {formattedDate} </StyledArticleInfo> <StyledButtonWrapper> <StyledShareButton onClick={copyLink} theme={{ isDarkMode }}> <StyledShareImgIcon src={isDarkMode ? CopyLinkIconDark : CopyLinkIconLight} alt="copy link icon" /> </StyledShareButton> <StyledShareButton theme={{ isDarkMode }}> <a href={https://www.facebook.com/sharer/sharer.php?u=https://theglitchnews.netlify.app/article/${article?.articleUrl}&quote=${article?.header} | #theGlitch} target="_blank" rel="noopener noreferrer"> <StyledShareImgIcon src={isDarkMode ? FacebookShareIconDark : FacebookShareIconLight} alt="facebook share icon"/> </a> </StyledShareButton> <StyledShareButton theme={{ isDarkMode }}> <a href={https://twitter.com/share?text=${encodeURIComponent(article?.header + " | #theGlitch #tech")}&url=${encodeURIComponent("https://theglitchnews.netlify.app/article/" + article?.articleUrl)}} target="_blank" rel="noopener noreferrer"> <StyledShareImgIcon src={isDarkMode ? TwitterShareIconDark : TwitterShareIconLight} /> </a> </StyledShareButton> </StyledButtonWrapper> <article> {article?.articleBody.map((paragraph, index)=><StyledArticleBody key={index}>{paragraph}</StyledArticleBody>)} </article> </main> </> ) }

    export default Article ```

    MetaTags.tsx: ``` import { Helmet } from 'react-helmet';

    type MetaTagsProps = { title: string; description: string; imageUrl: string; url: string; }

    const MetaTags = ({title, description, imageUrl, url}: MetaTagsProps) => { return ( <Helmet> <title>theGlitch</title> <meta name="description" content={description} />

    {/* OpenGraph tags */} <meta property="og:title" content={title} /> <meta property="og:description" content={description} /> <meta property="og:image" content={https://theglitchnews.netlify.app${imageUrl}} /> <meta property="og:url" content={url} />

    {/* Twitter Card tags */} <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:creator" content="@EtAl19820625" /> <meta name="twitter:title" content={title} /> <meta name="twitter:description" content={description} /> <meta name="twitter:image" content={https://theglitchnews.netlify.app/${imageUrl}} /> <meta name="twitter:url" content={url} /> </Helmet> ); };

    export default MetaTags; ```

    5
    EtAl EtAl @lemmy.dbzer0.com

    Editor and writer for isGlitch.com - the online-est of tech rags.

    Posts 3
    Comments 1