Beginning API Development with Node.js

Exercise 9: Updating with PATCH

1. You will realize that, in our previous exercise, we had to post the whole resource just to change a part of it. A better way of doing this is using PATCH, so that the payload only contains what is required. Let's now create a PATCH route:

{  method: 'PATCH',  handler: (request, reply) =>   {    …    Object.keys(request.payload).forEach(key =>     {      if (key in todo)       {        todo[key] = request.payload[key];        …    return reply({ message: 'patched' });    },}

Use the todo.js file for your reference at Code/Lesson-2/exercise-c1/routes.

2. Now, you can provide any of the keys and their values, and they will be updated respectively. For example, make the following request, only changing the title of the first todo:

3. You should get the ...