Initial commit

api/hooks/lib/ssr-server.js

@@ -0,0 +1,65 @@
+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 : "")
+
+    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: { publishDate: 1 },
+                // projection: null,
+            }
+        )
+        const publishSearch = context.db.find(endpoint, _optionsPublishSearch)
+        publishSearch?.forEach((item) => {
+            const publishDate = item.publishDate ? new Date(item.publishDate.unixMilli()) : null
+
+            if (publishDate && publishDate > new Date()) {
+                // entry has a publish date in the future, set global validUntil
+                if (validUntil == null || validUntil > publishDate) {
+                    validUntil = publishDate
+                }
+            }
+        })
+        // @ts-ignore
+        context.ssrCacheValidUntil = validUntil
+    }
+
+    // console.log("############ FETCHING ", apiSsrBaseURL + url)
+
+    const response = context.http.fetch(apiSsrBaseURL + url, {
+        method: options.method,
+        headers: options.headers,
+    })
+
+    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 }
+
+    // @ts-ignore
+    context.ssrCache[cacheKey] = r
+
+    return r
+}
+
+module.exports = {
+    ssrRequest,
+}