#100DaysOfCode in Python Transcripts
Chapter: Days 55-57: Structured API clients with uplink
Lecture: Demo: Getting a individual post
Login or
purchase this course
to watch this video and the rest of the course contents.
0:00
Now, before we move on from our read posts,
0:02
let's actually do one more thing.
0:04
Let's add another method here,
0:06
that's going to correspond to this.
0:10
So, what we've done so far is we've just gotten
0:12
the general info for all of them.
0:13
Let's get the details for one in particular.
0:16
Theoretically, this one might return more information
0:19
and more details, whereas, the get all of them
0:21
might just have high level info.
0:23
This is going to be interesting
0:24
because we have to pass the post id,
0:26
so, what we're going to do down here
0:28
is let's change this to "show a number"
0:31
so we can say "which number do you want to see".
0:34
The way that, the easiest way to do that
0:35
is to enumerate this and tell it to start at 1.
0:38
And change this to a little number here like this.
0:45
So, that's going to print it out
0:47
and then let's do a, so, we'll ask which number
0:51
they want to view and then we'll say selected_id.
0:56
It's going to be, we're going to go to our posts,
0:58
and we're going to use the selected index
1:00
but we're showing them 1 based in arrays
1:02
but lists are 0 based would you like this dot get_id.
1:08
Now, let's just print out selected_id really quick.
1:13
Just to prove that this little bit is working.
1:15
Now, this is totally missing error handling
1:17
at lots of levels but just to see that it works.
1:21
Just read them, which number do we want to view,
1:23
I want to view 3, alright, so, that's cool.
1:25
It pulls out that id and I'm sure you know
1:27
that that's correct, actually, you have no way of knowing
1:30
but I'm pretty sure it's working.
1:31
So, what we want to do is actually
1:32
go and use this to get some details.
1:35
So, back here we go, and this is going to be
1:36
similar to what we had before
1:38
but slightly more interesting.
1:39
I'll say, entry my_id, and here we'll pass post_id.
1:46
Now remember, the way this went, was up here,
1:48
we had a slash curly id like this,
1:51
and if we want to call it, you don't want
1:53
to call it id in Python, because id is a built-in
1:55
and it overrides the name, so, you would just put
1:57
this like so, so, when we call this function this value,
2:01
that is going to be replaced right there.
2:03
So, let's say get, so we'll get one particular detail.
2:07
Now, instead of doing this, we'll say selected post,
2:12
entry by id and then we'll pass in the selected_id.
2:16
Now, again, no error checking to make
2:18
sure that this worked and so on but that's okay.
2:20
So, here we'll actually, I need to say response,
2:24
then response.raise_for_status,
2:25
we'll make this a little bit cleaner in a second
2:27
and then we'll have to come over here
2:28
and say response.json because it comes back as JSON,
2:31
until we do this, it doesn't become a thing
2:33
and then let's just print out the details about it,
2:37
here. So, we get it back. Get the response back.
2:40
Make sure it worked. We get the JSON
2:43
and then that turns it into an object
2:44
and we're going to print out here.
2:45
Let's just try this and make sure it works.
2:49
Let's look at the easy breezy Python HTTP clients.
2:53
Look at that, it totally worked.
2:55
We went and got it from the server,
2:57
here's it's id and it's easy breezy.
3:00
Here's it when it was written.
3:01
Here's it's body content and so on.
3:04
This is pretty cool, and so, this is really nice
3:07
the way this is working; it turns out that this
3:09
raise_for_status is a little bit annoying
3:11
that we have to do this each time.
3:13
It would be better if we could tell
3:14
this whole thing just like "hey, don't even
3:16
give me back anything if it didn't work".
3:19
We'll do that next.
