Pass response byte[] from GetMapTile to AzureMap Control SDK

[stukarudel]

Hi! Integrating with this NuGet package and love what you have done here. Do you know how to pass the byte[] result of GetMapTile() to the Azure Map Control WebSDK? I would like to call the Azure Map endpoint from my API and then pass the byte array to the JavaScript for rendering. I was hoping for an easy method on the constructor, but I don't see one:

map = new atlas.Map('myMap',  //byte array result from api here);

[rbrundritt]

Why would you want to do this? The GetMapTile method has the image data for a map tile. Where as the Azure Maps Web SDK is an interactive map control which directly accesses the Azure Maps tiles. There is no need to grab the tiles server side and pass them down to the web SDK.

[stukarudel]

How would I show the image data for the map tile via JavaScript without the web sdk?

[rbrundritt]

The web SDK already uses the vector tiles for the base maps. There is no need to call the tile service directly as the web SDK will do that.

[stukarudel]

Yes, I've had success using the web SDK. I want to use your library so I can have my API handle the map functionality. I'm just not sure how to get the result from the REST call on the screen.

[perfahlen]

I am not sure what you are trying to achieve.

Here is the documentation https://docs.microsoft.com/en-us/rest/api/maps/render/getmaptile, either you get a pbf (which is a protobuf, probably a geojson so you can look at geobuf). Png files are much easier. You can basically convert the byte[] to an image. However, this library is intended to make it easier to access Azure Maps Rest Services from backend or from a mobile application for example.

[rbrundritt]

On StackOverflow you mentioned wanting to use Azure Active Directory (AAD). The Web SDK supports AAD already: https://docs.microsoft.com/en-us/azure/azure-maps/how-to-use-map-control

[stukarudel]

Thank you for your quick responses. I am trying to build a store locator using this library, similar to the example using the web SDK here: https://docs.microsoft.com/en-us/azure/azure-maps/tutorial-create-store-locator . I am not using AAD, subscription key is fine. I intend for this to be a public facing application so I don't want to expose my subscription key the way the web sdk tutorial suggests. I would prefer to use this library to get the map, add the store data, add the zoom and location controls and then serve it back to my website. This way the subscription key is protected and not visible in browser tools.

[rbrundritt]

Ok, subscription keys are primarily for development as there is no way to secure them (some platforms do ip address/url referrer whitelisting but it is very easy to get around that). If you wan to secure your credentials, use Azure Active Directory. Since this is a public facing application, you can use AAD in anonymous mode. This is the only true way to lock down your credentials securely and still have your site publicly accessible. This is how most of the code samples are locked down in the documentation for Azure Maps.

Note, some information will be visible in browser tools, but not the sensitive information.

[stukarudel]

Do you have a code sample on how to integrate Azure AD in anonymous mode for Azure maps?

[perfahlen]

@stukarudel, no I don't. I will create a task for accessing the services with Azure AD