Ensured response from servers.json has been parsed to a json array

src/servers/reducers/server.js

@@ -32,9 +32,19 @@ export const listServers = ({ listServers, createServers }, { get }) => () => as
 
   // If local list is empty, try to fetch it remotely and calculate IDs for every server
   // It's important to parse the content to json, so that it is ignored for other formats (because it will catch)
-  const getDataAsJsonWithIds = pipe(prop('data'), JSON.parse, map(assocId));
+  const getDataAsArrayWithIds = pipe(
+    prop('data'),
+    (value) => {
+      if (!Array.isArray(value)) {
+        throw new Error('Value is not an array');
+      }
+
+      return value;
+    },
+    map(assocId),
+  );
   const remoteList = await get(`${homepage}/servers.json`)
-    .then(getDataAsJsonWithIds)
+    .then(getDataAsArrayWithIds)
     .catch(() => []);
 
   createServers(remoteList);

test/servers/reducers/server.test.js

@@ -50,20 +50,20 @@ describe('serverReducer', () => {
       each([
         [
           Promise.resolve({
-            data: `[
-  {
-    "id": "111",
-    "name": "acel.me from servers.json",
-    "url": "https://acel.me",
-    "apiKey": "07fb8a96-8059-4094-a24c-80a7d5e7e9b0"
-  },
-  {
-    "id": "222",
-    "name": "Local from servers.json",
-    "url": "http://localhost:8000",
-    "apiKey": "7a531c75-134e-4d5c-86e0-a71b7167b57a"
-  }
-]`,
+            data: [
+              {
+                id: '111',
+                name: 'acel.me from servers.json',
+                url: 'https://acel.me',
+                apiKey: '07fb8a96-8059-4094-a24c-80a7d5e7e9b0',
+              },
+              {
+                id: '222',
+                name: 'Local from servers.json',
+                url: 'http://localhost:8000',
+                apiKey: '7a531c75-134e-4d5c-86e0-a71b7167b57a',
+              },
+            ],
           }),
           {
             111: {