Examples of API automation

Lets see how we can use the power of Playwright MCP Server to automate API of our application

Scenario

Perform POST operation for the URL https://api.restful-api.dev/objects with body 
{
   "name": "Apple MacBook Pro 16",
   "data": {
      "year": 2024,
      "price": 2499,
      "CPU model": “M4”,
      "Hard disk size": “5 TB"
   }
}
And verify if the response has createdAt and id property and store the ID in a variable for future reference say variable productID

Perform GET operation for the created ProductID using URL https://api.restful-api.dev/objects/productID and verify the response has properties like Id, name, data

Perform PUT operation for the created ProductID using URL https://api.restful-api.dev/objects/productID with body {
   "name": "Apple MacBook Pro 16",
   "data": {
      "year": 2025,
      "price": 4099,
      "CPU model": “M5”,
      "Hard disk size": "10 TB",
      "color": “Titanium”
   }
}

And verify if the response has createdAt and id property

Perform PATCH operation for the created ProductID using URL https://api.restful-api.dev/objects/productID with body 
{
   "name": "Apple MacBook Pro 19 (Limited Edition)”
}
And verify if the response has updatedAt property with value Apple MacBook Pro 19 (Limited Edition)

And once the entire test operation completes, we will be presented with the entire details of how the automation did happened.

tip

You can also see the Request/Response/StatusCode from the execution of Playwright MCP Server