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.eleventy.js
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.eleventy.js
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const EleventyFetch = require("@11ty/eleventy-fetch");
const jwt = require("jsonwebtoken");
// Generate JWT
const generateJwt = ({ adminKey, version = "v4" }) => {
const [id, secret] = adminKey.split(":");
return jwt.sign({}, Buffer.from(secret, "hex"), {
keyid: id,
algorithm: "HS256",
expiresIn: "5m",
audience: `/${version}/admin/`,
});
};
// Get all post data
const getPosts = async ({ url, key, adminKey, version = "v4" }) => {
const data = await EleventyFetch(
`${url}/ghost/api/${version}/${
adminKey ? "admin" : "content"
}/posts/?key=${key}&limit=all&include=tags,authors&formats=html`,
{
duration: "1m",
type: "json",
...(adminKey && {
fetchOptions: {
headers: {
Authorization: `Ghost ${generateJwt({ adminKey, version })}`,
},
},
}),
}
);
const updatedPosts = await data.posts.map((post) => {
// Filter tags to just show public tags
// Reassign internal tags to an internalTags key
const publicTags = post.tags.filter((tag) => tag.visibility !== "internal");
const internalTags = post.tags.filter(
(tag) => tag.visibility === "internal"
);
return {
...post,
tags: publicTags,
internalTags: internalTags,
};
});
return updatedPosts;
};
// Get all page data
const getPages = async ({ url, key, adminKey, version = "v4" }) => {
const data = await EleventyFetch(
`${url}/ghost/api/${version}/${
adminKey ? "admin" : "content"
}/pages/?key=${key}&limit=all&include=tags,authors&formats=html`,
{
duration: "1m",
type: "json",
...(adminKey && {
fetchOptions: {
headers: {
Authorization: `Ghost ${generateJwt({ adminKey, version })}`,
},
},
}),
}
);
const updatedPages = await data.pages.map((page) => {
// Filter tags to just show public tags
// Reassign internal tags to an internalTags key
const publicTags = page.tags.filter((tag) => tag.visibility !== "internal");
const internalTags = page.tags.filter(
(tag) => tag.visibility === "internal"
);
return {
...page,
tags: publicTags,
internalTags: internalTags,
};
});
return updatedPages;
};
// Get all tag data
const getTags = async ({ url, key, adminKey, version = "v4" }) => {
const data = await EleventyFetch(
`${url}/ghost/api/${version}/${
adminKey ? "admin" : "content"
}/tags/?key=${key}&limit=all&include=count.posts&filter=visibility:public`,
{
duration: "1m",
type: "json",
...(adminKey && {
fetchOptions: {
headers: {
Authorization: `Ghost ${generateJwt({ adminKey, version })}`,
},
},
}),
}
);
return data.tags;
};
// Get all author data
const getAuthors = async ({ url, key, adminKey, version = "v4" }) => {
const data = await EleventyFetch(
`${url}/ghost/api/${version}/${adminKey ? "admin" : "content"}/${
adminKey ? "users" : "authors"
}/?key=${key}&limit=all&include=count.posts`,
{
duration: "1m",
type: "json",
...(adminKey && {
fetchOptions: {
headers: {
Authorization: `Ghost ${generateJwt({ adminKey, version })}`,
},
},
}),
}
);
return adminKey ? data.users : data.authors;
};
// Get all settings data
const getSettings = async ({ url, key, version = "v4" }) => {
const data = await EleventyFetch(
`${url}/ghost/api/${version}/content/settings/?key=${key}`,
{
duration: "1m",
type: "json",
}
);
return data.settings;
};
const getContent = async (params) => {
return {
posts: await getPosts(params),
pages: await getPages(params),
tags: await getTags(params),
authors: await getAuthors(params),
settings: await getSettings(params),
};
};
module.exports = (eleventyConfig, options) => {
eleventyConfig.addGlobalData("ghost", async () => {
if (!options.url || !options.key) {
console.log("Invalid Ghost API key or URL");
}
return await getContent(options);
});
eleventyConfig.addFilter("filterPosts", (posts, key, value) => {
// Check for exclamation before the second parameter…
if (value.startsWith("!")) {
// Snip off that exclamation
const unprefixedValue = value.substring(1);
// Filter posts that don't include this value
return posts.filter((post) =>
post[key].every((item) => item.slug !== unprefixedValue)
);
}
// Filter posts that have the value
return posts.filter((post) =>
post[key].some((item) => item.slug === value)
);
});
};