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MadEste
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Jul 13, 2019
| * **Question:** What are query parameters? Try going to a couple of your favorite websites and paste an example of query parameters being used. | ||
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| * **Your Answer:** | ||
| * **Your Answer:anything after ? you have a key value pair. for about course is the key and javascript is the value |
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Passes these additional parameters in the url after the route. Useful for filters etc.
MadEste
reviewed
Jul 13, 2019
| * **Question:** Instead of a `GET` request, lets say we want to listen in for a `POST` request. What do you think you needs to change? | ||
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| * **Your Answer:** | ||
| * **Your Answer: it is from the client telling the server to create, update or delete an object |
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as far as code goes, we need to use
app.post
MadEste
reviewed
Jul 13, 2019
| * **Question:** Right now all of our requests will return a "Status Code" of 200. Define what a status code is and research how you could change it. | ||
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| * **Your Answer:** | ||
| * **Your Answer:satus code indicate the success or failure of a request or return status - 200 is success, there are several like not found, or unauthorized, they let the client know why or where a request failed or was successful or redirected. Add a.status method |
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:** | ||
| * **Your Answer: Middleware can be the gate that params go through that screen for access or redirect as needed |
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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
reviewed
Jul 13, 2019
| * **Question:** Describe the purpose of both morgan and body-parser. Why do you think morgan is only being run when the application is run in development mode? | ||
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| * **Your Answer:** | ||
| * **Your Answer:Morgan is a request logger, body-parser parses your request and converts it into a format from which you can easily extract relevant information that you may need |
MadEste
reviewed
Jul 13, 2019
| * **Question:** Try commenting out `body-parser` in your application. What happens and why? | ||
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| * **Your Answer:** | ||
| * **Your Answer: I must have done somethign wrong, I did not see any changes |
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If commented out you should loose access to req.body and therefore cannot send a proper response.
MadEste
reviewed
Jul 13, 2019
| * **Question:** Take a look at the last two `app.use()` methods at the end of the file. Describe how both work and what `err` is refers to. | ||
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| * **Your Answer:** | ||
| * **Your Answer:The first sets a not found (404) message if the inputed request cannot be found, the second is the response to the request |
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