DDB Config lookup

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.0.15
+
+* DDB Config fetch
+
 # 0.0.14
 
 * `/ping` endpoint

cache.js

@@ -17,7 +17,10 @@ class Cache {
   }
 
   add(id, data) {
-    if (!data || !data.length) return null;
+    const isArray = Array.isArray(data);
+    const isString = typeof data === "string" || data instanceof String;
+    const isObject = typeof data === "object";
+    if (!data || ((isArray || isString) && !data.length) || (!isArray && !isString && !isObject)) return null;
     console.log(`[CACHE ${this.name}] Adding to the Cache (ID: ${id}): ${data.length} items.`);
 
     const index = this.items.find(cache => cache.id === id);

index.js

@@ -6,6 +6,7 @@ const CONFIG = require("./config.js");
 const authentication = require("./auth.js");
 
 const filterModifiers = require("./filterModifiers.js");
+const lookup = require("./lookup.js");
 
 const spells = require("./spells.js");
 const character = require("./character.js");
@@ -33,6 +34,27 @@ app.post(authPath, cors(), express.json(), (req, res) => {
   });
 });
 
+const configLookupCall= "/proxy/api/config/json";
+app.options(configLookupCall, cors(), (req, res) => res.status(200).send());
+app.get(configLookupCall, cors(), express.json(), (req, res) => {
+
+  lookup
+    .getConfig()
+    .then((data) => {
+      return res
+        .status(200)
+        .json({ success: true, message: "Config retrieved.", data: data });
+    })
+    .catch((error) => {
+      console.log(error);
+      if (error === "Forbidden") {
+        return res.json({ success: false, message: "Forbidden." });
+      }
+      return res.json({ success: false, message: "Unknown error during config loading: " + error });
+    });
+
+});
+
 /**
  * Returns raw json from DDB
  */

lookup.js

@@ -0,0 +1,53 @@
+const fetch = require("node-fetch");
+const CONFIG = require("./config.js");
+const Cache = require("./cache.js");
+
+var CACHE_CONFIG = new Cache("CONFIG", 1);
+
+const getConfig= () => {
+  return new Promise((resolve, reject) => {
+    console.log("Retrieving ddb config");
+
+    const cache = CACHE_CONFIG.exists("DDB_CONFIG");
+    console.warn(cache);
+    if (cache !== undefined) {
+      console.log("CONFIG API CACHE_CONFIG HIT!");
+      return resolve(cache.data);
+    }
+
+    const url = CONFIG.urls.configUrl;
+    const options = {
+      credentials: "include",
+      headers: {
+        "User-Agent": "Foundry VTT Character Integrator",
+        "Accept": "*/*",
+      },
+      method: "GET",
+      mode: "cors",
+      redirect: "follow",
+    };
+
+    fetch(url, options)
+      .then(res => res.json())
+      .then(json => {
+        if (json && json.sources) {
+          CACHE_CONFIG.add("DDB_CONFIG", json);
+          console.log(
+            "Adding CACHE_CONFIG to cache..."
+          );
+          resolve(json);
+        } else {
+          console.log("Received no valid config data, instead:" + json);
+          reject(json);
+        }
+      })
+      .catch(error => {
+        console.log("Error retrieving DDB Config");
+        console.log(error);
+        reject(error);
+      });
+
+  });
+};
+
+exports.getConfig = getConfig;