a tool for shared writing and social publishing
use cover image in publishing initial bsky post
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+31
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app/[leaflet_id]/publish/publishBskyPost.ts
+31
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app/[leaflet_id]/publish/publishBskyPost.ts
···
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getMicroLinkOgImage,
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getWebpageImage,
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} from "src/utils/getMicroLinkOgImage";
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import { fetchAtprotoBlob } from "app/api/atproto_images/route";
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export async function publishPostToBsky(args: {
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text: string;
···
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let agent = new AtpBaseClient(
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credentialSession.fetchHandler.bind(credentialSession),
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);
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let newPostUrl = args.url;
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let preview_image = await getWebpageImage(newPostUrl, {
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width: 1400,
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height: 733,
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noCache: true,
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});
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// Get image binary - prefer cover image, fall back to screenshot
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let imageBinary: Blob | null = null;
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if (args.document_record.coverImage) {
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let cid =
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(args.document_record.coverImage.ref as unknown as { $link: string })[
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"$link"
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] || args.document_record.coverImage.ref.toString();
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let coverImageResponse = await fetchAtprotoBlob(identity.atp_did, cid);
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if (coverImageResponse) {
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imageBinary = await coverImageResponse.blob();
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}
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}
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// Fall back to screenshot if no cover image or fetch failed
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if (!imageBinary) {
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let preview_image = await getWebpageImage(args.url, {
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width: 1400,
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height: 733,
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noCache: true,
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});
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imageBinary = await preview_image.blob();
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}
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let binary = await preview_image.blob();
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let resized_preview_image = await sharp(await binary.arrayBuffer())
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// Resize and upload
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let resizedImage = await sharp(await imageBinary.arrayBuffer())
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.resize({
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width: 1200,
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height: 630,
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fit: "cover",
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})
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.webp({ quality: 85 })
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.toBuffer();
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let blob = await agent.com.atproto.repo.uploadBlob(resized_preview_image, {
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headers: { "Content-Type": binary.type },
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let blob = await agent.com.atproto.repo.uploadBlob(resizedImage, {
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headers: { "Content-Type": "image/webp" },
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});
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let bsky = new BskyAgent(credentialSession);
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let post = await bsky.app.bsky.feed.post.create(