holly-ellington / backend-assessment-node-and-express

Backend-Assessment-Node-and-Express

Node and Express: Assessment This lesson should take you between 60 and 90 minutes. If you spend longer than that on this lesson, reach out for help!

Instructions Your goal for this lesson is to get the tests to pass. To do so, you will be creating a simple server with three distinct routes and error handling. Your server should follow the structure you've learned in the course. Complete the following tasks to pass the tests and this assessment.

Note: Because the app.js file is currently empty, your tests will fail immediately. These failures will revert back to normal test failures once you have the basic app structure up and running.

Existing files File path Description app.js An empty file. Place your application code here. server.js An empty file. Place your server code here. middleware/validateZip.js Includes a function definition. You will need to complete this middleware function. utils/getZoos.js A function that retrieves zoos based off of a zip. You will need to use this function, but you should not need to modify it. test/assignment.test.js The tests your code will run against. You do not need to edit this file. Tasks In the app.js file, require Express, create an Express application, and export that application.

In the server.js file, require the exported Express application from the app.js file and start your server.

(Note: Skip this step for now.) Use the morgan middleware. Make sure that it is included above any routes.

In the app.js file, you will create three routes. See below for more information on the routes.

In the middleware/validateZip.js file, you will fill in the function definition to create middleware that is checking for a valid zip code. Read the instructions below as you will not be building a robust zip code validator.

In the app.js file, you will create error handlers in the case of a missing route and a general error handler.

Note: If you are having trouble getting your tests to pass but think you've gotten it right, make sure to check for punctuation and spelling. The tests are looking for exact string matches.

Routes To complete this project, you will create the following routes:

/check/:zip This route will respond with a short message saying whether or not the provided zip code is recorded in the getZoos.js file. Use the getZoos() function and pass in the zip code provided via the route parameter to receive the zoos in that zip code.

If the zip is a valid zip code (see middleware below) and matches an existing zip code, respond with a short message.

If the zip is a valid zip code (see middleware below) and does not match an existing zip code, respond with a different short message.

Example request URL

http://localhost:5000/check/07502 Matching zip response

07502 exists in our records. No matching zip response

12345 does not exist in our records. /zoos/:zip This route will respond with zoos for the specified zip code. Use the getZoos() function and pass in the zip code provided via the route parameter to receive the zoos for that zip.

If the zip is a valid zip code (see middleware below) and matches an existing zip code, respond with a short message and the zoos joined by a semicolon.

If the zip is a valid zip code (see middleware below) and does not match an existing zip code, respond with a short message.

Example request URL

http://localhost:5000/zoos/07502 Correct response with single zoo

02121 zoos: COMMONWEALTH ZOOLOGICAL CORPORATION, Boston, Massachusetts Correct response with multiple zoos

33890 zoos: HARDEE COUNTY BOARD OF COUNTY COMMISSION, Zolfo Springs, Florida; PEACE RIVER REFUGE & RANCH INC, Zolfo Springs, Florida Correct response with no zoos

07502 has no zoos. /zoos/all This route will respond with all zoos, but will only do so if the admin query parameter is provided and the value is set to true. Use the getZoos() function and pass in no arguments to receive all zoos.

If these constraints are met, the route will respond with a brief message followed by all of the zoos joined by a semicolon.

If these constraints aren't met, the route will respond with an error message.

Correct request URL

http://localhost:5000/zoos/all?admin=true Correct query parameter response

All zoos: WILDLIFE CONSERVATION SOCIETY, Bronx, New York; HARDEE COUNTY BOARD OF COUNTY COMMISSION, Zolfo Springs, Florida; PEACE RIVER REFUGE & RANCH INC, Zolfo Springs, Florida; CLOSE UP CREATURES L L C, Naples, Florida; KOWIACHOBEE ANIMAL PRESERVE INC, Naples, Florida; PRIVATE OWNER, Naples, Florida; COMMONWEALTH ZOOLOGICAL CORPORATION, Boston, Massachusetts Incorrect query parameter response

You do not have access to that route. Middleware Update the validateZip() function so that it validates an incoming parameter called zip according to the following constraints. You do not need to do any more validation than this to get the tests to pass.

The zip code must be five characters long.

The zip code must be all numeric. That is, no non-digit characters are allowed.

Based on whether or not the zip code is valid, your server should respond in the following way:

If the zip code is valid, move along to the next middleware function.

If the zip code is not valid, move along to the error handler function.

Invalid zip code response

Zip (ABCDE) is invalid! Error handling If the user goes to a route that is not defined, respond with the following message:

That route could not be found!