Is there a way to set the initial extent in a web map created in a program?

CharlieWare

I have a python API script that creates a web map from a feature service. I would like to set the initial extent of the map to zoom into the features in the feature service. I can set the initial extent in the Settings tab of the ArcGIS Online UI but cannot find the setting in the web map specification for setting the initial extent through code. 

Anonymous User

The extent is preserved as a property of the web map item and not in the web map definition, hence you may not find it in the web map spec. To set the extent using Python API, after publishing the web map, try to update the web map item using

update_parameters <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN><SPAN class="string token">'extent'</SPAN><SPAN class="punctuation token">:</SPAN>bottom_left_X<SPAN class="punctuation token">,</SPAN> bottom_left_Y<SPAN class="punctuation token">,</SPAN> top_right_X<SPAN class="punctuation token">,</SPAN> top_right_Y<SPAN class="punctuation token">}</SPAN>
<SPAN class="comment token">#example - set NY as extent</SPAN>
<SPAN class="comment token">#update_parameters = {'extent':'-74.227,40.537,-73.601,40.862'}</SPAN>
my_web_map_item<SPAN class="punctuation token">.</SPAN>update<SPAN class="punctuation token">(</SPAN>update_parameters<SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

The next time you open the web map, it should load this extent.

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