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Alright friends, so let's walk through the solution name.

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So the first thing I will do is to load up Postman,

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and I will go and create a new request, okay?

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So here we go.

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So the very first thing that I'm going to have to do

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is I'm going to have to log in, and I will do this

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by going to the DevNet Sandbox address.

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And the actual end point is going to be

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J_security_check as we saw within the skill.

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Now remember, the actual method I'm going to have to use here

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is going to be a post request.

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And at this point here, I'm going to have to go to the body,

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make sure it's x www.form_urlencoded.
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X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

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make sure it's x www.form_urlencoded.

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And the key here is going to be J_userName.

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And the value right now is going to be DevNet user.

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And the password will be J_password.

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And as we saw within the skill, the current password,

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as I recorded, is this right here.

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Now I'm going to go to the headers tab.

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I'll say the content type, and I'll give it the value

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of application, and I'll say x www.form_urlencoded.

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And now I will send off this particular request.

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So now I get this OK as we see within the headers down here.
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X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

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So now I get this OK as we see within the headers down here.

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I'm going to have the cookie set.

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Because of this, like I say, when it comes to creating

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a new request, as we can do right here,

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the cookies should be stored automatically

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via postman as we can see right here.

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So if that's now done, we want to now get the CSRF token.

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Now this time, the end point is going to be

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forward slash data service, forward slash client,

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forward slash token as we saw within the skill.

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The method this time is going to be a get request,

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not a post request.

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As we know, the cookie will automatically be set

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via postman, so we don't have to worry about this.
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X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

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via postman, so we don't have to worry about this.

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So if I just hit sends, I'm going to get back

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this particular token, so I'll just copy this right here,

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and now I'll create my new request.

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Now remember for the actual request,

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the target endpoint is going to be data service,

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device, statistics, we want to consult a documentation

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to ensure we use the correct HTTP method.

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So the first thing I will do is put in this endpoint

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of device statistics, or device stats, should I say.

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So let's go to the documentation,

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like this link here.

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If we go to the API reference, as we saw within the skill,

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we're going to say forward slash data service.
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X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

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we're going to say forward slash data service.

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We already know this, but what we're looking for

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is if I just search for forward slash device,

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here we have it right here, this is going to be

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a get request we have to send.

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So let's go back to postman.

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For this particular request, let's go to our headers.

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What we're going to say here is X, XSRF, token,

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and then I'm going to paste in that token value

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we just got.

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As we know, the cookies should still already be saved

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within postman, makes things a little bit easier for us.

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And if I now hit send, we actually do get a successful

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request for device statistics.
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request for device statistics.

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Okay, moving on.

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So the next thing we're going to do is to connect

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to the DevNet Always on Sandbox for Catalyst Center

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and return information about sites within Catalyst Center.

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To do this, we're going to have to consult the documentation.

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So the first thing we'll do is create a new request.

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Here we go.

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Remember, the first time we're going to have to do

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is to get that token.

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So what I will do is type in the address of the DevNet

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Sandbox for DNA Center and then target the

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auth token endpoint.

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We're going to then set the authorization to be

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basic authentication.

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And the username right now is DevNet user
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And the username right now is DevNet user

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and the password is Cisco 123 exclamation mark.

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As we can see right here.

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Let's go to the headers.

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We'll see the content type.

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It's going to be application forward slash JSON.

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And we're going to make sure that this is a

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post request, remember.

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So if we click send, now we get our token.

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So let's copy all of this.

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Now, before we go any further, we're going to have to

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target the sites within Catalyst Center.

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To do this, we're going to consult the documentation.

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So let's check this out.

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So if we search for Catalyst Centers Rest API Docs,
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So if we search for Catalyst Centers Rest API Docs,

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let's go and click this link here.

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Now, then the left hand side, we're going to try to find

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information relating to sites.

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And we can see this option here.

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So let's click this.

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And now as we know, we can go and look at the end points

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and methods used.

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So we have these particular options.

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So any combination of these is going to be quite just fine.

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In my case here, let's keep it quite simple.

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Let's just get information by targeting this.

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This particular end point with the get request.

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So we've got a new request once again.

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There is a DevNet URL.

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And let's just add on what we got from the documentation.
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And let's just add on what we got from the documentation.

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Just copy you and make sure we set it to a get request,

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which is what we can see right here.

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Now in the headers here, remember what we're going to

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have to specify.

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We're going to say X of token.

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And then paste in the value of this token right here.

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So paste you in.

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Now, if this is now done, I should be able to send off

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the request.

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And as we can see here, we get the 200 response coming back

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to us right there.

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Now very briefly, if you wanted to do this via Python,

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well, what you could have done is actually

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kind of cheated a little bit.
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kind of cheated a little bit.

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And if we just reuse the same scripts that we had within

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the scale, but make slight modifications, let's go in here.

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So say for example, this one for DNA sensor,

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we go through the same process, provide the username

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password with basic authentication, get our token,

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and then pass in the token to the header of X of token.

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Only difference is that the end point here is going to change.

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So if I just change this here to the information that we got

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right there, and just delete this portion here and just say

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print the result.

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If I save this and I run the script, as we can see right here,
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If I save this and I run the script, as we can see right here,

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we do get a valid response.

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Similarly, if I go back and modify my SD1 script,

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let me get copy of this one here.

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Same thing we saw before, we get the authentication cookie,

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we get this ESRF token, pass in with this header.

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The only difference here is we're going to modify this

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particular end point to be stats.

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So save this, Python 3, script 3, top py,

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and as we can see, we get a response.

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So friends, that is us for our validation challenge.

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I hope it's been informative for you,
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I hope it's been informative for you,

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and I'd like to thank you for viewing.