We have a new hire, and he doesn't know much so he is receptive when given feedback on better ways to handle a situation...Or at least, he appears that way. Until the next time and he didn't listen at all.

Today I'm working on the front end to match his API calls. I ask him about a list of options for one of the fields, as he didn't provide that info initially. No worries, there was a lot, easy to miss. He responds with a list of ~100 options, which he copied and pasted from, I'm assuming, their documentation. I tell him that's too many options to hard code, as there is an easy chance to have an error or for there to be one added or deleted, and ask if there is an API endpoint to get the list.

He then asks if I need the key and value, or just key. I tell him if he needs the value(human readable) then he can send me just the value, otherwise both. He says he just needs the key, so I let him know that I need both then, as the value is human readable. He says okay.

He proceeds to make the endpoint, I test it. Then I look at the code he wrote. Not only did he not send me both, he just sent the keys, but he hard coded all 100 keys as opposed to making the call to the external API.