How to fix 404 errors in Laravel application authenication


I am not a Laravel programmer by any stretch of imagination but I like to think that I am a pretty good engineer who can solve problems regardless of the situation. Recently I faced a situation where I was working with one of my clients on setting up a validated environment for their customers using a standard operating procedure (SOP). They had gotten the application developed from a third party vendor. Long story short, since their target market is highly regulated industry, they must have detailed and exhaustive documentation of all steps of setting up and tearing down of the computer systems.

It's not easy to write SOPs

There is a video where a father is asking his kids for some instructions to make a peanut butter and jelly sandwich. While for most of us making a peanut butter and jelly sandwich is highly intuitive and easy, for a person who doesn't know what is to be done, it can be stupefying. When we write instructions, we know a lot of things as we have already done the task successfully and assume that the reader is already aware of a lot of things that we know about and do not include those steps in our documentation.
Sometimes it is different. We miss some steps in our documentation and when someone else finds out and reports the gaps, we quickly make the change and do not update the documentation, hoping the problem will not recur. That exacerbates the actual problem. In case someone else has to reproduce the environment using those SOPs then they are basically stuck.
Therefore it is very important to have accurate and correct documentation updated. Admittedly, it is tedious and cumbersome, but in the long run it definitely is the right thing to do.

Laravel and Apache server

I had a Laravel application that was front ended by an Apache server and the backend was MySQL database. The developer had setup an instance and my job was to replicate the same using the SOP that they had built to ensure they are accurate and the process is predictable and repeatable. I followed the steps exactly as documented. I was able to get to the login screen. So far so good. But when I tried to log in using the test credentials, I was shown a 404 - Page not found error. Initially, I worked with the developer and they did something and fixed it. Interestingly, they failed to mention it to me what they did and neither was it documented in the SOP. So as it happened, I had to rebuild the server to try and get the SOP working. I again faced that issue and this time, instead of reaching out to the developer, I did my own research and Voila' I was able to solve the problem.
The research led me far and wide and in one of the forums I found the possible answer which suggested setting AllowOverride All on the parent directory of the application. In my case it was /var/www. The post suggested to set it at the main Apache configuration file. But I always try to localize these solutions and not make global changes if I can help it in order to keep the installation secure. So I added a Directory directive in the VHost configuration file which enables AllowOverride All for that VHost only while leaving the original configuration untouched.


They say that Laravel is a programming language for coding artists with elegant frameworks. But these issues are pretty simple and will be prevalent in all applications that require authentication. Why is this not better documented? More importantly why does the authenticate or login action in Laravel return a 404 error?
I wonder...

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