diff --git a/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/field_chooser.js b/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/field_chooser.js
index 27e357afefc494..03649d5fc4d159 100644
--- a/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/field_chooser.js
+++ b/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/field_chooser.js
@@ -16,7 +16,6 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import uuid from 'uuid/v4';
 import _ from 'lodash';
 import $ from 'jquery';
 import rison from 'rison-node';
@@ -26,7 +25,7 @@ import './discover_field_search_directive';
 import './discover_index_pattern_directive';
 import fieldChooserTemplate from './field_chooser.html';
 import { IndexPatternFieldList } from '../../../../../../../../plugins/data/public';
-import { getServices } from '../../../kibana_services';
+import { getMapsAppUrl, isFieldVisualizable, isMapsAppRegistered } from './lib/visualize_url_utils';
 
 export function createFieldChooserDirective($location, config, $route) {
   return {
@@ -183,71 +182,13 @@ export function createFieldChooserDirective($location, config, $route) {
         $scope.indexPattern.popularizeField(fieldName, 1);
       };
 
-      function getMapsAppUrl() {
-        const services = getServices();
-        const mapsAppVisAlias = services.visualizations.types.getAliases().find(({ name }) => {
-          return name === 'maps';
-        });
-        return mapsAppVisAlias ? mapsAppVisAlias.aliasUrl : null;
-      }
-
-      function isFieldVisualizable(field) {
-        const mapsAppUrl = getMapsAppUrl();
-        if (mapsAppUrl && (field.type === 'geo_point' || field.type === 'geo_shape')) {
-          return true;
-        }
-
-        return field.visualizable;
-      }
-
       function getVisualizeUrl(field) {
         if (!$scope.state) {
           return '';
         }
 
-        const mapsAppUrl = getMapsAppUrl();
-        if (mapsAppUrl && (field.type === 'geo_point' || field.type === 'geo_shape')) {
-          const mapAppParams = new URLSearchParams();
-
-          // Copy global state
-          const locationSplit = window.location.href.split('discover?');
-          if (locationSplit.length > 1) {
-            const discoverParams = new URLSearchParams(locationSplit[1]);
-            mapAppParams.set('_g', discoverParams.get('_g'));
-          }
-
-          // Copy filters and query in app state
-          const mapsAppState = {
-            filters: $scope.state.filters || [],
-          };
-          if ($scope.state.query) {
-            mapsAppState.query = $scope.state.query;
-          }
-          mapAppParams.set('_a', rison.encode(mapsAppState));
-
-          // create initial layer descriptor
-          const hasColumns =
-            $scope.columns && $scope.columns.length && $scope.columns[0] !== '_source';
-          mapAppParams.set(
-            'initialLayers',
-            rison.encode([
-              {
-                id: uuid(),
-                label: $scope.indexPattern.title,
-                sourceDescriptor: {
-                  id: uuid(),
-                  type: 'ES_SEARCH',
-                  geoField: field.name,
-                  tooltipProperties: hasColumns ? $scope.columns : [],
-                  indexPatternId: $scope.indexPattern.id,
-                },
-                visible: true,
-                type: 'VECTOR',
-              },
-            ])
-          );
-
-          return getServices().addBasePath(`${mapsAppUrl}?${mapAppParams.toString()}`);
+        if ((field.type === 'geo_point' || field.type === 'geo_shape') && isMapsAppRegistered()) {
+          return getMapsAppUrl(field, $scope.indexPattern, $scope.state, $scope.columns);
         }
 
         let agg = {};
diff --git a/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/lib/visualize_url_utils.ts b/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/lib/visualize_url_utils.ts
new file mode 100644
index 00000000000000..66630f722e608b
--- /dev/null
+++ b/src/legacy/core_plugins/kibana/public/discover/np_ready/components/field_chooser/lib/visualize_url_utils.ts
@@ -0,0 +1,94 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import uuid from 'uuid/v4';
+import rison from 'rison-node';
+import { IFieldType, IIndexPattern } from 'src/plugins/data/public';
+import { getServices } from '../../../../kibana_services';
+
+function getMapsAppBaseUrl() {
+  const mapsAppVisAlias = getServices()
+    .visualizations.types.getAliases()
+    .find(({ name }) => {
+      return name === 'maps';
+    });
+  return mapsAppVisAlias ? mapsAppVisAlias.aliasUrl : null;
+}
+
+export function isMapsAppRegistered() {
+  return getServices()
+    .visualizations.types.getAliases()
+    .some(({ name }) => {
+      return name === 'maps';
+    });
+}
+
+export function isFieldVisualizable(field: IFieldType) {
+  if ((field.type === 'geo_point' || field.type === 'geo_shape') && isMapsAppRegistered()) {
+    return true;
+  }
+  return field.visualizable;
+}
+
+export function getMapsAppUrl(
+  field: IFieldType,
+  indexPattern: IIndexPattern,
+  appState: any,
+  columns: string[]
+) {
+  const mapAppParams = new URLSearchParams();
+
+  // Copy global state
+  const locationSplit = window.location.href.split('discover?');
+  if (locationSplit.length > 1) {
+    const discoverParams = new URLSearchParams(locationSplit[1]);
+    mapAppParams.set('_g', discoverParams.get('_g'));
+  }
+
+  // Copy filters and query in app state
+  const mapsAppState = {
+    filters: appState.filters || [],
+  };
+  if (appState.query) {
+    mapsAppState.query = appState.query;
+  }
+  mapAppParams.set('_a', rison.encode(mapsAppState));
+
+  // create initial layer descriptor
+  const hasColumns = columns && columns.length && columns[0] !== '_source';
+  mapAppParams.set(
+    'initialLayers',
+    rison.encode([
+      {
+        id: uuid(),
+        label: indexPattern.title,
+        sourceDescriptor: {
+          id: uuid(),
+          type: 'ES_SEARCH',
+          geoField: field.name,
+          tooltipProperties: hasColumns ? columns : [],
+          indexPatternId: indexPattern.id,
+        },
+        visible: true,
+        type: 'VECTOR',
+      },
+    ])
+  );
+
+  return getServices().addBasePath(`${getMapsAppBaseUrl()}?${mapAppParams.toString()}`);
+}