diff --git a/Rest-API-Custom-Fields.md b/Rest-API-Custom-Fields.md
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+## In Wekan code
+
+wekan/models/customFields.js , at bottom
+
+```
+//CUSTOM FIELD REST API
+if (Meteor.isServer) {
+  JsonRoutes.add('GET', '/api/boards/:boardId/custom-fields', function (req, res) {
+    Authentication.checkUserId( req.userId);
+    const paramBoardId = req.params.boardId;
+    JsonRoutes.sendResult(res, {
+      code: 200,
+      data: CustomFields.find({ boardId: paramBoardId }),
+    });
+  });
+
+  JsonRoutes.add('GET', '/api/boards/:boardId/custom-fields/:customFieldId', function (req, res) {
+    Authentication.checkUserId( req.userId);
+    const paramBoardId = req.params.boardId;
+    const paramCustomFieldId = req.params.customFieldId;
+    JsonRoutes.sendResult(res, {
+      code: 200,
+      data: CustomFields.findOne({ _id: paramCustomFieldId, boardId: paramBoardId }),
+    });
+  });
+
+  JsonRoutes.add('POST', '/api/boards/:boardId/custom-fields', function (req, res) {
+    Authentication.checkUserId( req.userId);
+    const paramBoardId = req.params.boardId;
+    const id = CustomFields.direct.insert({
+      name: req.body.name,
+      type: req.body.type,
+      settings: req.body.settings,
+      showOnCard: req.body.showOnCard,
+      boardId: paramBoardId,
+    });
+
+    const customField = CustomFields.findOne({_id: id, boardId: paramBoardId });
+    customFieldCreation(req.body.authorId, customField);
+
+    JsonRoutes.sendResult(res, {
+      code: 200,
+      data: {
+        _id: id,
+      },
+    });
+  });
+
+  JsonRoutes.add('DELETE', '/api/boards/:boardId/custom-fields/:customFieldId', function (req, res) {
+    Authentication.checkUserId( req.userId);
+    const paramBoardId = req.params.boardId;
+    const id = req.params.customFieldId;
+    CustomFields.remove({ _id: id, boardId: paramBoardId });
+    JsonRoutes.sendResult(res, {
+      code: 200,
+      data: {
+        _id: id,
+      },
+    });
+  });
+}
+```
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