Cypress: Is it possible to use cy.route to stub out requests with specific path in its request body?

Question

I have several different API calls all goes to the same url, which is /api. What differentiates them is in their request body, where there is a path specified for each different API call. So the request looks like this

url: '/api',
method: 'POST',
headers: ...,
body: {
  headers: {X-Amz-User-Agent: ".", Content-Type: "application/json"}
  method: "GET"
  operation: "describeEndpoint"
  path: "/endpoint"
  region: "us-east-1"
}

And I know I can use cy.route to stub out API calls like this

cy.route({
      method: 'POST',
      url: '/api',
      status: 500,
      response: {},
    })

But since there are many other API calls also go to this endpoint '/api', I want it to be specifically targeted to the describeEndpoint call, which has "/endpoint" in its path so this stub doesn't affect other API calls. I wonder if it is possible to do it with cy.route.

By the way does anyone know why is it that the method in the request is POST while the method in the request body is GET? This is how the API request looks like in my app and I cannot understand the discrepancy here