---
id: 587d824f367417b2b2512c5a
title: Run Functional Tests on an API Response using Chai-HTTP III - PUT method
challengeType: 2
forumTopicId: 301590
dashedName: run-functional-tests-on-an-api-response-using-chai-http-iii---put-method
---

# --description--

As a reminder, this project is being built upon the following starter project on [Replit](https://replit.com/github/freeCodeCamp/boilerplate-mochachai), or cloned from [GitHub](https://github.com/freeCodeCamp/boilerplate-mochachai/).

In the next example we'll see how to send data in a request payload (body). We are going to test a PUT request. The `'/travellers'` endpoint accepts a JSON object taking the structure:

```json
{
  "surname": [last name of a traveller of the past]
}
```

The route responds with :

```json
{
  "name": [first name], "surname": [last name], "dates": [birth - death years]
}
```

See the server code for more details.

# --instructions--

Within `tests/2_functional-tests.js`, alter the `'send {surname: "Colombo"}'` test (`// #3`):

Send the following JSON response as a payload:

```json
{
  "surname": "Colombo"
}
```

Check for the following, within the `request.end` callback:

1.  `status`
2.  `type`
3.  `body.name`
4.  `body.surname`

Follow the assertion order above - we rely on it. Be sure to remove `assert.fail()`, once complete.

# --hints--

All tests should pass.

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=2').then(
    (data) => {
      assert.equal(data.state, 'passed');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

You should test for 'res.status' to be 200.

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=2').then(
    (data) => {
      assert.equal(data.assertions[0].method, 'equal');
      assert.equal(data.assertions[0].args[0], 'res.status');
      assert.equal(data.assertions[0].args[1], '200');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

You should test for 'res.type' to be 'application/json'.

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=2').then(
    (data) => {
      assert.equal(data.assertions[1].method, 'equal');
      assert.equal(data.assertions[1].args[0], 'res.type');
      assert.match(data.assertions[1].args[1], /('|")application\/json\1/);
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

You should test for 'res.body.name' to be 'Cristoforo'.

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=2').then(
    (data) => {
      assert.equal(data.assertions[2].method, 'equal');
      assert.equal(data.assertions[2].args[0], 'res.body.name');
      assert.match(data.assertions[2].args[1], /('|")Cristoforo\1/);
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

You should test for 'res.body.surname' to be 'Colombo'.

```js
(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=functional&n=2').then(
    (data) => {
      assert.equal(data.assertions[3].method, 'equal');
      assert.equal(data.assertions[3].args[0], 'res.body.surname');
      assert.match(data.assertions[3].args[1], /('|")Colombo\1/);
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );
```

# --solutions--

```js
/**
  Backend challenges don't need solutions, 
  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/
```