tibi-docs/api/hooks/lib/ssr.js
Sebastian Frank 1ebd1424e5
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ssr via fetch
2024-04-10 08:26:40 +00:00

139 lines
4.1 KiB
JavaScript

const { apiClientBaseURL } = require("../config-client")
/**
* convert object to string
* @param {any} obj object
* @returns {string} string
*/
function obj2str(obj) {
if (Array.isArray(obj)) {
return JSON.stringify(
obj.map(function (idx) {
return obj2str(idx)
})
)
} else if (typeof obj === "object" && obj !== null) {
var elements = Object.keys(obj)
.sort()
.map(function (key) {
var val = obj2str(obj[key])
if (val) {
return key + ":" + val
}
})
var elementsCleaned = []
for (var i = 0; i < elements.length; i++) {
if (elements[i]) elementsCleaned.push(elements[i])
}
return "{" + elementsCleaned.join("|") + "}"
}
if (obj) return obj
}
/**
* api request via client or server
* server function ssrRequest is called via context.ssrRequest, binded in ssr hook
*
* @param {string} endpoint
* @param {ApiOptions} options
* @param {any} body
* @param {import("../../../frontend/src/sentry")} sentry
* @param {typeof fetch} _fetch
* @returns {Promise<ApiResult<any>>}
*/
function apiRequest(endpoint, options, body, sentry, _fetch) {
// TODO cache only for GET
// first check cache if on client
const cacheKey = obj2str({ endpoint: endpoint, options: options })
console.log("SSR CHECK", cacheKey)
let method = options?.method || "GET"
// @ts-ignore
if (typeof window !== "undefined" && window.__SSR_CACHE__ && method === "GET") {
// @ts-ignore
const cache = window.__SSR_CACHE__[cacheKey]
console.log("SSR HIT:", cacheKey, cache)
if (cache) {
return Promise.resolve(cache)
}
}
let query = "&count=1"
if (options?.filter) query += "&filter=" + encodeURIComponent(JSON.stringify(options.filter))
if (options?.sort) query += "&sort=" + options.sort + "&sort=_id"
if (options?.limit) query += "&limit=" + options.limit
if (options?.offset) query += "&offset=" + options.offset
if (options?.projection) query += "&projection=" + options.projection
if (options?.lookup) query += "&lookup=" + options.lookup
if (options?.params) {
Object.keys(options.params).forEach((p) => {
query += "&" + p + "=" + encodeURIComponent(options.params[p])
})
}
/** @type {{[key: string]: string}} */
let headers = {
"Content-Type": "application/json",
}
if (options?.headers) headers = { ...headers, ...options.headers }
if (typeof window === "undefined" && method === "GET") {
// server
// reference via context from get hook to tree shake in client
// @ts-ignore
const d = context.ssrRequest(cacheKey, endpoint, query, Object.assign({}, options, { method, headers }))
return d
} else {
// client
let url = apiClientBaseURL + endpoint + (query ? "?" + query : "")
const span = sentry.currentTransaction()?.startChild({
op: "fetch",
description: method + " " + url,
data: Object.assign({}, options, { url }),
})
const trace_id = span?.toTraceparent()
if (trace_id) {
headers["sentry-trace"] = trace_id
}
/** @type {{[key: string]: any}} */
const requestOptions = {
method,
mode: "cors",
headers,
}
if (method === "POST" || method === "PUT") {
requestOptions.body = JSON.stringify(body)
}
const response = _fetch(url, requestOptions).then((response) => {
return response?.json().then((json) => {
if (response?.status < 200 || response?.status >= 400) {
return Promise.reject({ response, data: json })
}
return Promise.resolve({ data: json || null, count: response.headers?.get("x-results-count") || 0 })
})
})
span?.end()
// @ts-ignore
return response
}
}
module.exports = {
obj2str,
apiRequest,
}