freeCodeCamp/curriculum/challenges/english/05-apis-and-microservices/apis-and-microservices-proj.../exercise-tracker.md

8.7 KiB

id title challengeType forumTopicId dashedName
5a8b073d06fa14fcfde687aa Exercise Tracker 4 301505 exercise-tracker

--description--

Build a full stack JavaScript app that is functionally similar to this: https://exercise-tracker.freecodecamp.rocks/. Working on this project will involve you writing your code using one of the following methods:

  • Clone this GitHub repo and complete your project locally.
  • Use our repl.it starter project to complete your project.
  • Use a site builder of your choice to complete the project. Be sure to incorporate all the files from our GitHub repo.

When you are done, make sure a working demo of your project is hosted somewhere public. Then submit the URL to it in the Solution Link field. Optionally, also submit a link to your project's source code in the GitHub Link field.

--hints--

You should provide your own project, not the example URL.

(getUserInput) => {
  const url = getUserInput('url');
  assert(
    !/.*\/exercise-tracker\.freecodecamp\.rocks/.test(getUserInput('url'))
  );
};

You can POST to /api/exercise/new-user with form data username to create a new user. The returned response will be an object with username and _id properties.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/new-user', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: `username=fcc_test_${Date.now()}`.substr(0, 29)
  });
  if (res.ok) {
    const { _id, username } = await res.json();
    assert.exists(_id);
    assert.exists(username);
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

You can make a GET request to api/exercise/users to get an array of all users. Each element in the array is an object containing a user's username and _id.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/users');
  if (res.ok) {
    const data = await res.json();
    assert.isArray(data);
    assert.isString(data[0].username);
    assert.isString(data[0]._id);
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

You can POST to /api/exercise/add with form data userId=_id, description, duration, and optionally date. If no date is supplied, the current date will be used. The response returned will be the user object with the exercise fields added.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/new-user', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: `username=fcc_test_${Date.now()}`.substr(0, 29)
  });
  if (res.ok) {
    const { _id, username } = await res.json();
    const expected = {
      username,
      description: 'test',
      duration: 60,
      _id,
      date: 'Mon Jan 01 1990'
    };
    const addRes = await fetch(url + '/api/exercise/add', {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      body: `userId=${_id}&description=${expected.description}&duration=${expected.duration}&date=1990-01-01`
    });
    if (addRes.ok) {
      const actual = await addRes.json();
      assert.deepEqual(actual, expected);
    } else {
      throw new Error(`${addRes.status} ${addRes.statusText}`);
    }
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

You can make a GET request to /api/exercise/log with a parameter of userId=_id to retrieve a full exercise log of any user. The returned response will be the user object with a log array of all the exercises added. Each log item has the description, duration, and date properties.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/new-user', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: `username=fcc_test_${Date.now()}`.substr(0, 29)
  });
  if (res.ok) {
    const { _id, username } = await res.json();
    const expected = {
      username,
      description: 'test',
      duration: 60,
      _id,
      date: new Date().toDateString()
    };
    const addRes = await fetch(url + '/api/exercise/add', {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      body: `userId=${_id}&description=${expected.description}&duration=${expected.duration}`
    });
    if (addRes.ok) {
      const logRes = await fetch(url + `/api/exercise/log?userId=${_id}`);
      if (logRes.ok) {
        const { log } = await logRes.json();
        assert.isArray(log);
        assert.equal(1, log.length);
      } else {
        throw new Error(`${logRes.status} ${logRes.statusText}`);
      }
    } else {
      throw new Error(`${addRes.status} ${addRes.statusText}`);
    }
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

A request to a user's log (/api/exercise/log) returns an object with a count property representing the number of exercises returned.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/new-user', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: `username=fcc_test_${Date.now()}`.substr(0, 29)
  });
  if (res.ok) {
    const { _id, username } = await res.json();
    const expected = {
      username,
      description: 'test',
      duration: 60,
      _id,
      date: new Date().toDateString()
    };
    const addRes = await fetch(url + '/api/exercise/add', {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      body: `userId=${_id}&description=${expected.description}&duration=${expected.duration}`
    });
    if (addRes.ok) {
      const logRes = await fetch(url + `/api/exercise/log?userId=${_id}`);
      if (logRes.ok) {
        const { count } = await logRes.json();
        assert(count);
      } else {
        throw new Error(`${logRes.status} ${logRes.statusText}`);
      }
    } else {
      throw new Error(`${addRes.status} ${addRes.statusText}`);
    }
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

You can add from, to and limit parameters to a /api/exercise/log request to retrieve part of the log of any user. from and to are dates in yyyy-mm-dd format. limit is an integer of how many logs to send back.

async (getUserInput) => {
  const url = getUserInput('url');
  const res = await fetch(url + '/api/exercise/new-user', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: `username=fcc_test_${Date.now()}`.substr(0, 29)
  });
  if (res.ok) {
    const { _id, username } = await res.json();
    const expected = {
      username,
      description: 'test',
      duration: 60,
      _id,
      date: new Date().toDateString()
    };
    const addExerciseRes = await fetch(url + '/api/exercise/add', {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      body: `userId=${_id}&description=${expected.description}&duration=${expected.duration}&date=1990-01-01`
    });
    const addExerciseTwoRes = await fetch(url + '/api/exercise/add', {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      body: `userId=${_id}&description=${expected.description}&duration=${expected.duration}&date=1990-01-02`
    });
    if (addExerciseRes.ok && addExerciseTwoRes.ok) {
      const logRes = await fetch(
        url + `/api/exercise/log?userId=${_id}&from=1989-12-31&to=1990-01-03`
      );
      if (logRes.ok) {
        const { log } = await logRes.json();
        assert.isArray(log);
        assert.equal(2, log.length);
      } else {
        throw new Error(`${logRes.status} ${logRes.statusText}`);
      }
      const limitRes = await fetch(
        url + `/api/exercise/log?userId=${_id}&limit=1`
      );
      if (limitRes.ok) {
        const { log } = await limitRes.json();
        assert.isArray(log);
        assert.equal(1, log.length);
      } else {
        throw new Error(`${limitRes.status} ${limitRes.statusText}`);
      }
    } else {
      throw new Error(`${res.status} ${res.statusText}`);
    }
  } else {
    throw new Error(`${res.status} ${res.statusText}`);
  }
};

--solutions--

/**
  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.
*/