backend and api endpoints

frontend/src/api.ts

@@ -0,0 +1,121 @@
+import { apiBaseURL } from "./config"
+
+const _f = function (url, options): Promise<Response> {
+    if (typeof XMLHttpRequest === "undefined") {
+        return Promise.resolve(null)
+    }
+
+    options = options || {}
+    return new Promise((resolve, reject) => {
+        const request = new XMLHttpRequest()
+        const keys = []
+        const all = []
+        const headers = {}
+
+        const response = (): Response => ({
+            ok: ((request.status / 100) | 0) == 2, // 200-299
+            statusText: request.statusText,
+            status: request.status,
+            url: request.responseURL,
+            text: () => Promise.resolve(request.responseText),
+            json: () => Promise.resolve(request.responseText).then(JSON.parse),
+            blob: () => Promise.resolve(new Blob([request.response])),
+            clone: response,
+            headers: {
+                // @ts-ignore
+                keys: () => keys,
+                // @ts-ignore
+                entries: () => all,
+                get: (n) => headers[n.toLowerCase()],
+                has: (n) => n.toLowerCase() in headers,
+            },
+        })
+
+        request.open(options.method || "get", url, true)
+
+        request.onload = () => {
+            request
+                .getAllResponseHeaders()
+                // @ts-ignore
+                .replace(/^(.*?):[^\S\n]*([\s\S]*?)$/gm, (m, key, value) => {
+                    keys.push((key = key.toLowerCase()))
+                    all.push([key, value])
+                    headers[key] = headers[key] ? `${headers[key]},${value}` : value
+                })
+            resolve(response())
+        }
+
+        request.onerror = reject
+        request.withCredentials = options.credentials == "include"
+        for (const i in options.headers) {
+            request.setRequestHeader(i, options.headers[i])
+        }
+        request.send(options.body || null)
+    })
+}
+
+const _fetch = typeof fetch === "undefined" ? (typeof window === "undefined" ? _f : window.fetch || _f) : fetch
+
+export const api = async <T>(
+    endpoint: string,
+    options?: {
+        method?: string
+        filter?: any
+        sort?: string
+        limit?: number
+        offset?: number
+        projection?: string
+        headers?: {
+            [key: string]: string
+        }
+        params?: {
+            [key: string]: string
+        }
+    },
+    body?: any
+): Promise<{ data: T; count: number } | any> => {
+    if (typeof window === "undefined") {
+        // ssr
+        // @ts-ignore
+        return context.ssrFetch(endpoint, options)
+    }
+
+    let method = options?.method || "GET"
+
+    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?.params) {
+        Object.keys(options.params).forEach((p) => {
+            query += "&" + p + "=" + encodeURIComponent(options.params[p])
+        })
+    }
+
+    let headers: any = {
+        "Content-Type": "application/json",
+    }
+
+    if (options?.headers) headers = { ...headers, ...options.headers }
+
+    let url = apiBaseURL + endpoint + (query ? "?" + query : "")
+
+    const requestOptions: any = {
+        method,
+        mode: "cors",
+        headers,
+    }
+
+    if (method === "POST" || method === "PUT") {
+        requestOptions.body = JSON.stringify(body)
+    }
+
+    let response = await _fetch(url, requestOptions)
+    if (response.status == 409 || response.status == 401) return response
+    let data = (await response?.json()) || null
+    // @ts-ignore
+    return { data }
+}