#100DaysOfCode in Python Transcripts
Chapter: Days 55-57: Structured API clients with uplink
Lecture: Demo: Getting a individual post
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Now, before we move on from our read posts,
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let's actually do one more thing.
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Let's add another method here,
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that's going to correspond to this.
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So, what we've done so far is we've just gotten
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the general info for all of them.
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Let's get the details for one in particular.
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Theoretically, this one might return more information
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and more details, whereas, the get all of them
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might just have high level info.
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This is going to be interesting
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because we have to pass the post id,
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so, what we're going to do down here
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is let's change this to "show a number"
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so we can say "which number do you want to see".
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The way that, the easiest way to do that
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is to enumerate this and tell it to start at 1.
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And change this to a little number here like this.
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So, that's going to print it out
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and then let's do a, so, we'll ask which number
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they want to view and then we'll say selected_id.
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It's going to be, we're going to go to our posts,
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and we're going to use the selected index
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but we're showing them 1 based in arrays
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but lists are 0 based would you like this dot get_id.
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Now, let's just print out selected_id really quick.
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Just to prove that this little bit is working.
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Now, this is totally missing error handling
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at lots of levels but just to see that it works.
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Just read them, which number do we want to view,
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I want to view 3, alright, so, that's cool.
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It pulls out that id and I'm sure you know
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that that's correct, actually, you have no way of knowing
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but I'm pretty sure it's working.
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So, what we want to do is actually
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go and use this to get some details.
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So, back here we go, and this is going to to be
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similar to what we had before
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but slightly more interesting.
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I'll say, entry my_id, and here we'll pass post_id.
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Now remember, the way this went, was up here,
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we had a slash curly id like this,
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and if we want to call it, you don't want
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to call it id in Python, because id is a built-in
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and it overrides the name, so, you would just put
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this like so, so, when we call this function this value,
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that is going to be replaced right there.
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So, let's say get, so we'll get one particular detail.
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Now, instead of doing this, we'll say selected post,
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entry by id and then we'll pass in the selected_id.
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Now, again, no error checking to make
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sure that this worked and so on but that's okay.
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So, here we'll actually, I need to say response,
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then response.raise_for_status,
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we'll make this a little bit cleaner in a second
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and then we'll have to come over here
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and say response.json because it comes back as JSON,
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until we do this, it doesn't become a thing
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and then let's just print out the details about it,
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here. So, we get it back. Get the response back.
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Make sure it worked. We get the JSON
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and then that turns it into an object
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and we're going to print out here.
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Let's just try this and make sure it works.
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Let's look at the easy breezy Python HTTP clients.
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Look at that, it totally worked.
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We went and got it from the server,
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here's it's id and it's easy breezy.
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Here's it when it was written.
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Here's it's body content and so on.
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This is pretty cool, and so, this is really nice
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the way this is working; it turns out that this
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raise_for_status is a little bit annoying
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that we have to do this each time.
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It would be better if we could tell
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this whole thing just like "hey, don't even
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give me back anything if it didn't work".
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We'll do that next.
