Use Prettier JS (#5017)

* Adds prettier

* Run lint before tests

src/Adapters/Files/FilesAdapter.js

@@ -13,7 +13,7 @@
 // and for the API server to be using the DatabaseController with Mongo
 // database adapter.
 
-import type { Config } from '../../Config'
+import type { Config } from '../../Config';
 /**
  * @module Adapters
  */
@@ -21,7 +21,6 @@ import type { Config } from '../../Config'
  * @interface FilesAdapter
  */
 export class FilesAdapter {
-
   /** Responsible for storing the file in order to be retrieved later by its filename
    *
    * @param {string} filename - the filename to save
@@ -31,7 +30,7 @@ export class FilesAdapter {
    *
    * @return {Promise} a promise that should fail if the storage didn't succeed
    */
-  createFile(filename: string, data, contentType: string): Promise { }
+  createFile(filename: string, data, contentType: string): Promise {}
 
   /** Responsible for deleting the specified file
    *
@@ -39,7 +38,7 @@ export class FilesAdapter {
    *
    * @return {Promise} a promise that should fail if the deletion didn't succeed
    */
-  deleteFile(filename: string): Promise { }
+  deleteFile(filename: string): Promise {}
 
   /** Responsible for retrieving the data of the specified file
    *
@@ -47,7 +46,7 @@ export class FilesAdapter {
    *
    * @return {Promise} a promise that should pass with the file data or fail on error
    */
-  getFileData(filename: string): Promise<any> { }
+  getFileData(filename: string): Promise<any> {}
 
   /** Returns an absolute URL where the file can be accessed
    *
@@ -56,7 +55,7 @@ export class FilesAdapter {
    *
    * @return {string} Absolute URL
    */
-  getFileLocation(config: Config, filename: string): string { }
+  getFileLocation(config: Config, filename: string): string {}
 }
 
 export default FilesAdapter;

src/Adapters/Files/GridStoreAdapter.js

@@ -7,9 +7,9 @@
  */
 
 // @flow-disable-next
-import { MongoClient, GridStore, Db} from 'mongodb';
-import { FilesAdapter }              from './FilesAdapter';
-import defaults                      from '../../defaults';
+import { MongoClient, GridStore, Db } from 'mongodb';
+import { FilesAdapter } from './FilesAdapter';
+import defaults from '../../defaults';
 
 export class GridStoreAdapter extends FilesAdapter {
   _databaseURI: string;
@@ -22,8 +22,9 @@ export class GridStoreAdapter extends FilesAdapter {
 
   _connect() {
     if (!this._connectionPromise) {
-      this._connectionPromise = MongoClient.connect(this._databaseURI)
-        .then((client) => client.db(client.s.options.dbName));
+      this._connectionPromise = MongoClient.connect(this._databaseURI).then(
+        client => client.db(client.s.options.dbName)
+      );
     }
     return this._connectionPromise;
   }
@@ -31,41 +32,54 @@ export class GridStoreAdapter extends FilesAdapter {
   // For a given config object, filename, and data, store a file
   // Returns a promise
   createFile(filename: string, data) {
-    return this._connect().then((database) => {
-      const gridStore = new GridStore(database, filename, 'w');
-      return gridStore.open();
-    }).then(gridStore => {
-      return gridStore.write(data);
-    }).then(gridStore => {
-      return gridStore.close();
-    });
+    return this._connect()
+      .then(database => {
+        const gridStore = new GridStore(database, filename, 'w');
+        return gridStore.open();
+      })
+      .then(gridStore => {
+        return gridStore.write(data);
+      })
+      .then(gridStore => {
+        return gridStore.close();
+      });
   }
 
   deleteFile(filename: string) {
-    return this._connect().then(database => {
-      const gridStore = new GridStore(database, filename, 'r');
-      return gridStore.open();
-    }).then((gridStore) => {
-      return gridStore.unlink();
-    }).then((gridStore) => {
-      return gridStore.close();
-    });
+    return this._connect()
+      .then(database => {
+        const gridStore = new GridStore(database, filename, 'r');
+        return gridStore.open();
+      })
+      .then(gridStore => {
+        return gridStore.unlink();
+      })
+      .then(gridStore => {
+        return gridStore.close();
+      });
   }
 
   getFileData(filename: string) {
-    return this._connect().then(database => {
-      return GridStore.exist(database, filename)
-        .then(() => {
+    return this._connect()
+      .then(database => {
+        return GridStore.exist(database, filename).then(() => {
           const gridStore = new GridStore(database, filename, 'r');
           return gridStore.open();
         });
-    }).then(gridStore => {
-      return gridStore.read();
-    });
+      })
+      .then(gridStore => {
+        return gridStore.read();
+      });
   }
 
   getFileLocation(config, filename) {
-    return (config.mount + '/files/' + config.applicationId + '/' + encodeURIComponent(filename));
+    return (
+      config.mount +
+      '/files/' +
+      config.applicationId +
+      '/' +
+      encodeURIComponent(filename)
+    );
   }
 
   getFileStream(filename: string) {