[SOLVED] Cmpt 353 assignment 2 – client-server application
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based on nodejs. In this assignment, you will train:
● the development of a stateful client-server application,
● use of asynchronous XHTMLHttpRequest
● testing of your codePlease provide the Dockerfile and/or docker-compose.yml you used in completing the
assignment. Failure to provide the needed Dockerfile and/or docker-compose.yml will make it
impossible to test the solution you developed and result in 0 marks for this assignment.Part A) 30 Points
Develop for the nodejs platform a post method called postmessage that accepts two
parameters (topic and data) and saves them together with a timestamp (date and time) in a file
called posts.txt. Make sure that if the file already exists that you add append it – if it doesn’t
exist you should create it. To simplify your task, you may use the npm module express and
body-parser. No other libraries are to be used.
Obviously, you are free to use any standard nodejs module, e.g. fs.Part B) 50 Points
Develop a webpage called posting.html that allows a user to see all posts and allows the
creation of new posts. You should only use asynchronous XMLHttpRequest calls for
client-server communication. To improve the user experience, use alert to inform the user
about the success or failure of posting a new message. Ensure that the displayed posts are up
to date, e.g. update the data on the webpage if another user made a post.
No javascript libraries are allowed for this part.Part C) 30 Points
Write a test report that shows how you tested the nodejs code you developed (e.g. be sure to
use loadtest [https://www.npmjs.com/package/loadtest] for the performance test). Your report
(short paragraph) should answer the following questions● How did you test your code?
● How long does it take to process a single post (performance)?
● Does the size of the data submitted to the server impact the performance?
● How does the number of requests impact the performance of the server?
● How does the level of concurrency impact the performance of the server?What to hand in?
Dockerfile and/or docker-compose.yml file that you used in the assignment. Failure to provide
this/these files will result in a zero (0) grade for the assignment.Part a) -> one file called server.js (make sure that calling nodejs server.js will work).
Part b) -> one file called posting.html (this file should contain all JS code and HTML)
Part c) -> one file called report.pdf that contains your report.