102 lines
3.6 KiB
JavaScript
102 lines
3.6 KiB
JavaScript
const { apiSsrBaseURL, ssrPublishCheckCollections } = require("../config")
|
||
|
||
/**
|
||
* api request via server, cache result in context.ssrCache
|
||
* should be elimated in client code via tree shaking
|
||
*
|
||
* @param {string} cacheKey
|
||
* @param {string} endpoint
|
||
* @param {string} query
|
||
* @param {ApiOptions} options
|
||
* @returns {ApiResult<any>}
|
||
*/
|
||
function ssrRequest(cacheKey, endpoint, query, options) {
|
||
let url = endpoint + (query ? "?" + query : "")
|
||
|
||
// track which collections/entries contribute to this SSR render
|
||
// endpoint may contain path segments (e.g. "content/abc123") or query strings
|
||
const collectionName = endpoint.split("?")[0].split("/")[0]
|
||
|
||
if (ssrPublishCheckCollections?.includes(endpoint)) {
|
||
// @ts-ignore
|
||
let validUntil = context.ssrCacheValidUntil
|
||
|
||
// check in db for publish date to invalidate cache
|
||
const _optionsPublishSearch = Object.assign(
|
||
{},
|
||
{ filter: options?.filter },
|
||
{
|
||
selector: { publication: 1 },
|
||
projection: null,
|
||
}
|
||
)
|
||
const publishSearch = context.db.find(endpoint, _optionsPublishSearch)
|
||
publishSearch?.forEach((item) => {
|
||
const publicationFrom = item.publication?.from ? new Date(item.publication.from.unixMilli()) : null
|
||
const publicationTo = item.publication?.to ? new Date(item.publication.to.unixMilli()) : null
|
||
|
||
if (publicationFrom && publicationFrom > new Date()) {
|
||
// entry has a publish date that is further in in the future than current, set global validUntil
|
||
if (validUntil == null || validUntil > publicationFrom) {
|
||
validUntil = publicationFrom
|
||
}
|
||
}
|
||
if (publicationTo && publicationTo > new Date()) {
|
||
// entry has a unpublish date that is further in in the future than current, set global validUntil
|
||
if (validUntil == null || validUntil > publicationTo) {
|
||
validUntil = publicationTo
|
||
}
|
||
}
|
||
})
|
||
// @ts-ignore
|
||
context.ssrCacheValidUntil = validUntil
|
||
}
|
||
|
||
// console.log("############ FETCHING ", apiSsrBaseURL + url)
|
||
|
||
const response = context.http.fetch(apiSsrBaseURL + url, {
|
||
method: options.method,
|
||
headers: options.headers,
|
||
})
|
||
|
||
// console.log(JSON.stringify(response.headers, null, 2))
|
||
|
||
const json = response.body.json()
|
||
const count = parseInt(response.headers["X-Results-Count"] || "0")
|
||
|
||
// json is go data structure and incompatible with js, so we need to convert it
|
||
const r = { data: JSON.parse(JSON.stringify(json)), count: count }
|
||
|
||
// track dependencies: "col:id" for single-entry, "col:*" for list queries
|
||
// @ts-ignore – dynamic property set by get_read.js
|
||
if (context.ssrDeps) {
|
||
let entryId = null
|
||
|
||
if (!Array.isArray(r.data) && r.data && r.data.id) {
|
||
// direct ID lookup (COLLECTION/ID) – API returned single object
|
||
entryId = r.data.id
|
||
} else if (options?.limit === 1 && Array.isArray(r.data) && r.data.length === 1 && r.data[0] && r.data[0].id) {
|
||
// filter-based detail query with limit:1
|
||
entryId = r.data[0].id
|
||
}
|
||
|
||
if (entryId) {
|
||
// @ts-ignore
|
||
context.ssrDeps[collectionName + ":" + entryId] = true
|
||
} else {
|
||
// list query – any change to this collection affects this page
|
||
// @ts-ignore
|
||
context.ssrDeps[collectionName + ":*"] = true
|
||
}
|
||
}
|
||
|
||
// @ts-ignore
|
||
context.ssrCache[cacheKey] = r
|
||
|
||
return r
|
||
}
|
||
|
||
module.exports = {
|
||
ssrRequest,
|
||
}
|