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MadEste
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Jul 13, 2019
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| * **Your Answer:** | ||
| * **Your Answer:** Anything that follows the ? in the GET request is a query param. After the question mark is a key value pair and if you want to send in more key value pairs you combine them using & | ||
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MadEste
reviewed
Jul 13, 2019
| * **Question:** When does `app.use()` get called? | ||
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| * **Your Answer:** | ||
| * **Your Answer:** Everytime a request is made |
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Remember in general app.use() only fires when a request reaches that line in the route chain.
MadEste
reviewed
Jul 13, 2019
| * **Question:** The above can be described as middleware. Describe what middleware is in your own words and how it differs from building a route. | ||
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| * **Your Answer:** middleware is something that acts as a wrapper and exposes many methods within app for easy access. Without middleware we can still build the entire server but just that the code will tend to be overly verbose. middleware acts as a translation unit and makes life easier by providing useful wrappers |
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Middleware is the code/application/module that communicates between two systems, such as between servers and databases. The code above is different than a route because it is always run whenever the application gets to these lines.
MadEste
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Jul 13, 2019
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| * **Your Answer:** | ||
| * **Your Answer:** if a particular path was not found for any of the req methods like get post put etc ,we log out the error messages using these app.use statements | ||
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Correct, the First catches any missed requests that do not match routes, the second returns an error message.
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