a906a1b426
* Add local components to build on new DocsPage functionality. * Add new nav-data format, and placeholder remote-plugins config * Bump to pre-release components and implement remote loading - Migrates /docs to new DocsPage API, and adds remote plugin loading functionality - Migrates /guides and /intro to new DocsPage API * Remove now unused JS nav config * Cut empty comment line
72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
const fetch = require('isomorphic-unfetch')
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const GITHUB_API_TOKEN = process.env.GITHUB_API_TOKEN
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async function githubQuery(body, token) {
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const result = await fetch('https://api.github.com/graphql', {
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method: 'POST',
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headers: {
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Authorization: `bearer ${token}`,
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ContentType: 'application/json',
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},
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body: JSON.stringify(body),
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})
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return await result.json()
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}
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// Fetch a file from GitHub using the GraphQL API
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async function getGithubFile({ repo, branch, filePath }) {
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const [repo_owner, repo_name] = repo.split('/')
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// Set up the GraphQL query
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// (usually we can keep this in a separate file, and rely on a
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// plaintext loader we've set up in our NextJS config, but we need
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// to fetch remote content when indexing it, which happens outside
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// NextJS, so unfortunately it seems this has to be inlined)
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const query = `
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query($repo_name: String!, $repo_owner: String!, $object_expression: String!) {
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repository(name: $repo_name, owner: $repo_owner) {
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object(expression: $object_expression) {
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... on Blob {
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text
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}
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}
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}
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}
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`
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// Set variables
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const variables = {
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repo_name,
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repo_owner,
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object_expression: `${branch}:${filePath}`,
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}
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// Query the GitHub API, and parse the navigation data
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const result = await githubQuery({ query, variables }, GITHUB_API_TOKEN)
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try {
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const fileText = result.data.repository.object.text
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return [null, fileText]
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} catch (e) {
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const errorMsg = `Could not fetch remote file text from "${
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variables.object_expression
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}" in "${repo_owner}/${repo_name}". Received instead:\n\n${JSON.stringify(
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result,
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null,
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2
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)}`
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return [errorMsg, null]
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}
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}
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function memoize(method) {
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let cache = {}
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return async function () {
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let args = JSON.stringify(arguments[0])
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if (!cache[args]) {
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cache[args] = method.apply(this, arguments)
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}
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return cache[args]
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}
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}
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module.exports = memoize(getGithubFile)
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