Swift - How to Setup $PATH to resolve PhantomJS PATH error (OpenLoad)

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Question

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OpenLoad: How do you setup $PATH to resolve the following error?

ERROR: PhantomJS executable not found in PATH, download it from http://phantomjs.org

Context:

I read through all the posts about the error: ERROR: PhantomJS executable not found in PATH, download it from http://phantomjs.org. The solution given was to setup $PATH, but I didn't know how or where to do that. I looked up a variety of keywords on Google, but the results weren't very helpful, so I wanted to pass along the implementation that worked for me. =]

Solution:

youtube-dl looks for the phantomjs file in the location stored in the$PATH value. The $PATH value tells the command line interface where to find executable files. You need to manually set this value to the location of your phantomjs executable file.

For my Swift application, I downloaded and stored the youtube-dl, ffmpeg, and phantomjs executable files in my application's directory. To set the $PATH value to that directory, I needed to use the environment dictionary of theProcess class. The environment dictionary uses variable names as keys, and variable values as values. In Swift, it looks like this:

let environmentDictionary = ["$PATH": "/Users/davidlittlefield/path/to/phantomjs/executable/directory/"]

Then, I set the environment dictionary to the environment property of the Process class. I also had to set the currentDirectoryPath property of the Process class to the same path value that I used for $PATH. Then, I was able to successfully download titles and videos from OpenLoad! In Swift, it looks like this:

Note:

Also, this code demonstrates how to run an executable file with arguments from within Swift, which was another challenge that didn't seem to have much documentation available online.