# Chat with Vendor/Delivery Boy Customer can now chat with delivery boy or vendor. To use the feature, you will need to make a small change/configuration to some files in the Customer flutter app. You need to set your **firebase server key** to be able to allow message to be sent to vendor/delivery boy. Go to **\[PROJECT\_FOLDER] > lib > constants > app\_strings.dart,** you will see a variable called **firebaseServerToken**. Change the value for that variable to your the server key gotten from your firebase project. static String **firebaseServerToken** = **"YOUR\_FIREBASE\_PROJECT\_SERVER\_KEY"**; --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://edentech.gitbook.io/foodie/the-app/chat-with-vendor-delivery-boy.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.