There are several threads on here that have gotten me this far, but I've still not found any solid documentation about what needs to be supplied to the JSON dictionary in order to properly update it. Note: I can get this to work when there is only one layer in the feature layer/feature collection. I'm just stuck. Here is my code so far. "" " #Import Modules import copy , json from arcgis . gis import GIS from arcgis . mapping import WebMap #Log into ArcGIS Enterprise gis = GIS ( "https://awesomeportalname.com/portal" , "DougMcGrave" , "a1ntL!FeGr@nd!" ) print ( "Logged in as: " + gis . properties . user . username ) #Retrieve NortheastFieldData web map webMapSearch = gis . content . search ( "title: NortheastFieldData2" , item_type = "Web Map" ) sourceWebMap = webMapSearch [ 0 ] #itemID = webMapTest.id #print(itemID) #Read the web map as a WebMap object webMapObject = WebMap ( sourceWebMap ) #Create a copy of the web map with a new title webmap_item_properties = { 'title' : 'TestCopyThis' , 'snippet' : 'testcopydis' , 'tags' : 'Test' } webMapObject . save ( webmap_item_properties ) #Retrieve new web map newWebMapSearch = gis . content . search ( "title: TestCopyThis" , item_type = "Web Map" ) newWebMap = newWebMapSearch [ 0 ] for layer in newWebMap . layers : print ( layer . title ) #Extract JSON from webmap pubMapJson = newWebMap . get_data ( try_json = True ) jsonCopy = copy . deepcopy ( pubMapJson ) #Layers in web map which need filter applied layersList = [ 'NortheastCruisePoints' , 'NortheastClientsCollector - NortheastPoints' , 'NortheastClientsCollector - NortheastPoints' , 'NortheastClientsCollector - NortheastLines' , 'NortheastClientsCollector - NortheastStands' , 'NortheastClientsCollector - Harvest Operations Status' ] #Filter to be applied lyrFilter = "LVI_CODE = '{0}'" . format ( "7532" ) #Extract JSON from webmap and create a copy pubMapJson = newWebMap . get_data ( try_json = True ) jsonCopy = copy . deepcopy ( pubMapJson ) #Loop through each layer for lyr in layersList : if 'layerDefinition' in lyr : print ( lyr ) jsonCopy [ 'operationalLayers' ] [ 0 ] [ 'layerDefinition' ] [ 'definitionExpression' ] = lyrFilter #Update JSON newWebMap . update ( item_properties = { 'text' : json . dumps ( jsonCopy ) } ) No errors are given and the JSON update returns 'True'

One way to do that would be doing something along these lines. Haven't tested well I get my layer to change the definition expressions with this. layer = webmap . layers [ 1 ] print ( layer . title ) if "layerDefinition" in layer : if "definitionExpression" in layer [ "layerDefinition" ] : layer [ "layerDefinition" ] [ "definitionExpression" ] = "RakennelmanTyyppi <> 2" print ( 'definitionExpression updated to value {}' . format ( layer [ "layerDefinition" ] [ "definitionExpression" ] ) ) else : layer [ "layerDefinition" ] [ "definitionExpression" ] = "RakennelmanTyyppi <> 2" print ( 'definitionExpression updated to value {}' . format ( layer [ "layerDefinition" ] [ "definitionExpression" ] ) ) else : layer [ "layerDefinition" ] = { "definitionExpression" : "RakennelmanTyyppi <> 2" } print ( 'layerDefinition added to value {}' . format ( layer [ "layerDefinition" ] ) ) webmap . update ( )

FWIW, this what the support techs came up with for a solution. It's basically borrowed from several other threads on GeoNet, but i've yet to get an answer about the need for the enumeration. I was able to modify their code to accommodate a loop to handle multiple layers [not included here; i suspect there are a number of redundancies which can be eliminated from my own solution]. Esri's code: from arcgis . gis import GIS import copy from json import dumps from json import JSONDecoder from arcgis . mapping import WebMap gis = GIS ( "https://supt0010856.esri.com/portal" , "siteadmin" , "siteadmin1" ) print ( "Logged in as: " + gis . properties . user . username ) #Retrieve NortheastFieldData web map webMapSearch = gis . content . search ( "title: LynseyTest2" , item_type = "Web Map" ) sourceWebMap = webMapSearch [ 0 ] webMapObject = WebMap ( sourceWebMap ) #Create a copy of the web map with a new title webmap_item_properties = { 'title' : 'TestCopyLynsey3' , 'snippet' : 'testcopydis' , 'tags' : 'Test' } webMapObject . save ( webmap_item_properties ) newWebMapSearch = gis . content . search ( "title: TestCopyLynsey3" , item_type = "Web Map" ) newWebMap = newWebMapSearch [ 0 ] print ( newWebMap ) for layer in WebMap ( newWebMap ) . layers : print ( layer . title ) #Extract JSON from webmap pubMapJson = newWebMap . get_data ( try_json = True ) jsonCopy = copy . deepcopy ( pubMapJson ) #print copy of webmap json print ( jsonCopy ) lyrFilter = "stringtest = '{0}'" . format ( "test" ) print ( lyrFilter ) fldMapJsonCopy = copy . deepcopy ( pubMapJson ) lyrT = [ l for l in pubMapJson [ 'operationalLayers' ] if l [ 'title' ] == 'APITest' ] if len ( lyrT ) > 0 : tZoneLyr = lyrT [ 0 ] if 'layerDefinition' in tZoneLyr : z = [ [ x , y ] for x , y in enumerate ( pubMapJson [ 'operationalLayers' ] ) if y [ 'title' ] == 'APITest' ] [ 0 ] fldMapJsonCopy [ 'operationalLayers' ] [ z [ 0 ] ] [ 'layerDefinition' ] [ 'definitionExpression' ] = lyrFilter final = newWebMap . update ( item_properties = { 'text' : dumps ( fldMapJsonCopy ) } ) print ( final ) Any one have any idea what the enumeration is doing here?

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Update WebMap dictionary for multiple feature layers

ZacharyHart

There are several threads on here that have gotten me this far, but I've still not found any solid documentation about what needs to be supplied to the JSON dictionary in order to properly update it. Note: I can get this to work when there is only one layer in the feature layer/feature collection. I'm just stuck.

Here is my code so far.

<SPAN class="string token">""</SPAN>"
<SPAN class="comment token">#Import Modules</SPAN>
<SPAN class="keyword token">import</SPAN> copy<SPAN class="punctuation token">,</SPAN>json
<SPAN class="keyword token">from</SPAN> arcgis<SPAN class="punctuation token">.</SPAN>gis <SPAN class="keyword token">import</SPAN> GIS
<SPAN class="keyword token">from</SPAN> arcgis<SPAN class="punctuation token">.</SPAN>mapping <SPAN class="keyword token">import</SPAN> WebMap

<SPAN class="comment token">#Log into ArcGIS Enterprise</SPAN>
gis <SPAN class="operator token">=</SPAN> GIS<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"https://awesomeportalname.com/portal"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"DougMcGrave"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"a1ntL!FeGr@nd!"</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Logged in as: "</SPAN> <SPAN class="operator token">+</SPAN> gis<SPAN class="punctuation token">.</SPAN>properties<SPAN class="punctuation token">.</SPAN>user<SPAN class="punctuation token">.</SPAN>username<SPAN class="punctuation token">)</SPAN>


<SPAN class="comment token">#Retrieve NortheastFieldData web map</SPAN>
webMapSearch <SPAN class="operator token">=</SPAN> gis<SPAN class="punctuation token">.</SPAN>content<SPAN class="punctuation token">.</SPAN>search<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"title: NortheastFieldData2"</SPAN><SPAN class="punctuation token">,</SPAN>item_type <SPAN class="operator token">=</SPAN> <SPAN class="string token">"Web Map"</SPAN><SPAN class="punctuation token">)</SPAN>
sourceWebMap<SPAN class="operator token">=</SPAN> webMapSearch<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="comment token">#itemID = webMapTest.id</SPAN>
<SPAN class="comment token">#print(itemID)</SPAN>
<SPAN class="comment token">#Read the web map as a WebMap object</SPAN>
webMapObject <SPAN class="operator token">=</SPAN> WebMap<SPAN class="punctuation token">(</SPAN>sourceWebMap<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Create a copy of the web map with a new title</SPAN>
webmap_item_properties <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN><SPAN class="string token">'title'</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">'TestCopyThis'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'snippet'</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">'testcopydis'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'tags'</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">'Test'</SPAN><SPAN class="punctuation token">}</SPAN>
webMapObject<SPAN class="punctuation token">.</SPAN>save<SPAN class="punctuation token">(</SPAN>webmap_item_properties<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Retrieve new web map</SPAN>
newWebMapSearch <SPAN class="operator token">=</SPAN> gis<SPAN class="punctuation token">.</SPAN>content<SPAN class="punctuation token">.</SPAN>search<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"title: TestCopyThis"</SPAN><SPAN class="punctuation token">,</SPAN>item_type <SPAN class="operator token">=</SPAN> <SPAN class="string token">"Web Map"</SPAN><SPAN class="punctuation token">)</SPAN>
newWebMap <SPAN class="operator token">=</SPAN> newWebMapSearch<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>


<SPAN class="keyword token">for</SPAN> layer <SPAN class="keyword token">in</SPAN> newWebMap<SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Extract JSON from webmap</SPAN>
pubMapJson <SPAN class="operator token">=</SPAN> newWebMap<SPAN class="punctuation token">.</SPAN>get_data<SPAN class="punctuation token">(</SPAN>try_json<SPAN class="operator token">=</SPAN><SPAN class="token boolean">True</SPAN><SPAN class="punctuation token">)</SPAN>
jsonCopy <SPAN class="operator token">=</SPAN> copy<SPAN class="punctuation token">.</SPAN>deepcopy<SPAN class="punctuation token">(</SPAN>pubMapJson<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Layers in web map which need filter applied</SPAN>
layersList <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="string token">'NortheastCruisePoints'</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">'NortheastClientsCollector - NortheastPoints'</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">'NortheastClientsCollector - NortheastPoints'</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">'NortheastClientsCollector - NortheastLines'</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">'NortheastClientsCollector - NortheastStands'</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">'NortheastClientsCollector - Harvest Operations Status'</SPAN><SPAN class="punctuation token">]</SPAN>

<SPAN class="comment token">#Filter to be applied</SPAN>
lyrFilter <SPAN class="operator token">=</SPAN> <SPAN class="string token">"LVI_CODE = '{0}'"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"7532"</SPAN><SPAN class="punctuation token">)</SPAN>
    
<SPAN class="comment token">#Extract JSON from webmap and create a copy</SPAN>
pubMapJson <SPAN class="operator token">=</SPAN> newWebMap<SPAN class="punctuation token">.</SPAN>get_data<SPAN class="punctuation token">(</SPAN>try_json<SPAN class="operator token">=</SPAN><SPAN class="token boolean">True</SPAN><SPAN class="punctuation token">)</SPAN>
jsonCopy <SPAN class="operator token">=</SPAN> copy<SPAN class="punctuation token">.</SPAN>deepcopy<SPAN class="punctuation token">(</SPAN>pubMapJson<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Loop through each layer</SPAN>
<SPAN class="keyword token">for</SPAN> lyr <SPAN class="keyword token">in</SPAN> layersList<SPAN class="punctuation token">:</SPAN>
        <SPAN class="keyword token">if</SPAN> <SPAN class="string token">'layerDefinition'</SPAN> <SPAN class="keyword token">in</SPAN> lyr<SPAN class="punctuation token">:</SPAN>
            <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>lyr<SPAN class="punctuation token">)</SPAN>
            jsonCopy<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'operationalLayers'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">'layerDefinition'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">'definitionExpression'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="operator token">=</SPAN>lyrFilter
            
<SPAN class="comment token">#Update JSON</SPAN>
newWebMap<SPAN class="punctuation token">.</SPAN>update<SPAN class="punctuation token">(</SPAN>item_properties<SPAN class="operator token">=</SPAN><SPAN class="punctuation token">{</SPAN><SPAN class="string token">'text'</SPAN><SPAN class="punctuation token">:</SPAN>json<SPAN class="punctuation token">.</SPAN>dumps<SPAN class="punctuation token">(</SPAN>jsonCopy<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

No errors are given and the JSON update returns 'True'

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sofoo

It looks like you've hard-coded the layer index to [0] so it seems to be only updating the first layer every time you loop?

AnttiKajanus

One way to do that would be doing something along these lines. Haven't tested well I get my layer to change the definition expressions with this.

layer <SPAN class="operator token">=</SPAN> webmap<SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">[</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">if</SPAN> <SPAN class="string token">"layerDefinition"</SPAN> <SPAN class="keyword token">in</SPAN> layer<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="string token">"definitionExpression"</SPAN> <SPAN class="keyword token">in</SPAN> layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">:</SPAN>
        layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">]</SPAN>  <SPAN class="operator token">=</SPAN> <SPAN class="string token">"RakennelmanTyyppi <> 2"</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'definitionExpression updated to value {}'</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
    <SPAN class="keyword token">else</SPAN><SPAN class="punctuation token">:</SPAN>
        layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">]</SPAN>  <SPAN class="operator token">=</SPAN> <SPAN class="string token">"RakennelmanTyyppi <> 2"</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'definitionExpression updated to value {}'</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">else</SPAN><SPAN class="punctuation token">:</SPAN>
    layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN>
        <SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"RakennelmanTyyppi <> 2"</SPAN>
    <SPAN class="punctuation token">}</SPAN>
    <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'layerDefinition added to value {}'</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>

webmap<SPAN class="punctuation token">.</SPAN>update<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

ZacharyHart

FWIW, this what the support techs came up with for a solution. It's basically borrowed from several other threads on GeoNet, but i've yet to get an answer about the need for the enumeration. I was able to modify their code to accommodate a loop to handle multiple layers [not included here; i suspect there are a number of redundancies which can be eliminated from my own solution].

Esri's code:

<SPAN class="keyword token">from</SPAN> arcgis<SPAN class="punctuation token">.</SPAN>gis <SPAN class="keyword token">import</SPAN> GIS
<SPAN class="keyword token">import</SPAN> copy
<SPAN class="keyword token">from</SPAN> json <SPAN class="keyword token">import</SPAN> dumps
<SPAN class="keyword token">from</SPAN> json <SPAN class="keyword token">import</SPAN> JSONDecoder
<SPAN class="keyword token">from</SPAN> arcgis<SPAN class="punctuation token">.</SPAN>mapping <SPAN class="keyword token">import</SPAN> WebMap

gis <SPAN class="operator token">=</SPAN> GIS<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"https://supt0010856.esri.com/portal"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"siteadmin"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"siteadmin1"</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Logged in as: "</SPAN> <SPAN class="operator token">+</SPAN> gis<SPAN class="punctuation token">.</SPAN>properties<SPAN class="punctuation token">.</SPAN>user<SPAN class="punctuation token">.</SPAN>username<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Retrieve NortheastFieldData web map</SPAN>
webMapSearch <SPAN class="operator token">=</SPAN> gis<SPAN class="punctuation token">.</SPAN>content<SPAN class="punctuation token">.</SPAN>search<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"title: LynseyTest2"</SPAN><SPAN class="punctuation token">,</SPAN>item_type <SPAN class="operator token">=</SPAN> <SPAN class="string token">"Web Map"</SPAN><SPAN class="punctuation token">)</SPAN>
sourceWebMap<SPAN class="operator token">=</SPAN> webMapSearch<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>

webMapObject <SPAN class="operator token">=</SPAN> WebMap<SPAN class="punctuation token">(</SPAN>sourceWebMap<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Create a copy of the web map with a new title</SPAN>
webmap_item_properties <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN><SPAN class="string token">'title'</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">'TestCopyLynsey3'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'snippet'</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">'testcopydis'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'tags'</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">'Test'</SPAN><SPAN class="punctuation token">}</SPAN>
webMapObject<SPAN class="punctuation token">.</SPAN>save<SPAN class="punctuation token">(</SPAN>webmap_item_properties<SPAN class="punctuation token">)</SPAN>

newWebMapSearch <SPAN class="operator token">=</SPAN> gis<SPAN class="punctuation token">.</SPAN>content<SPAN class="punctuation token">.</SPAN>search<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"title: TestCopyLynsey3"</SPAN><SPAN class="punctuation token">,</SPAN>item_type <SPAN class="operator token">=</SPAN> <SPAN class="string token">"Web Map"</SPAN><SPAN class="punctuation token">)</SPAN>
newWebMap <SPAN class="operator token">=</SPAN> newWebMapSearch<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">print</SPAN> <SPAN class="punctuation token">(</SPAN>newWebMap<SPAN class="punctuation token">)</SPAN>

<SPAN class="keyword token">for</SPAN> layer <SPAN class="keyword token">in</SPAN> WebMap<SPAN class="punctuation token">(</SPAN>newWebMap<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>

<SPAN class="comment token">#Extract JSON from webmap </SPAN>
pubMapJson <SPAN class="operator token">=</SPAN> newWebMap<SPAN class="punctuation token">.</SPAN>get_data<SPAN class="punctuation token">(</SPAN>try_json<SPAN class="operator token">=</SPAN><SPAN class="token boolean">True</SPAN><SPAN class="punctuation token">)</SPAN>
jsonCopy <SPAN class="operator token">=</SPAN> copy<SPAN class="punctuation token">.</SPAN>deepcopy<SPAN class="punctuation token">(</SPAN>pubMapJson<SPAN class="punctuation token">)</SPAN>
<SPAN class="comment token">#print copy of webmap json</SPAN>
<SPAN class="keyword token">print</SPAN> <SPAN class="punctuation token">(</SPAN>jsonCopy<SPAN class="punctuation token">)</SPAN>

lyrFilter <SPAN class="operator token">=</SPAN> <SPAN class="string token">"stringtest = '{0}'"</SPAN><SPAN class="punctuation token">.</SPAN>format<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"test"</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN> <SPAN class="punctuation token">(</SPAN>lyrFilter<SPAN class="punctuation token">)</SPAN>

fldMapJsonCopy <SPAN class="operator token">=</SPAN> copy<SPAN class="punctuation token">.</SPAN>deepcopy<SPAN class="punctuation token">(</SPAN>pubMapJson<SPAN class="punctuation token">)</SPAN>

lyrT <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN>l <SPAN class="keyword token">for</SPAN> l <SPAN class="keyword token">in</SPAN> pubMapJson<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'operationalLayers'</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="keyword token">if</SPAN> l<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'title'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="operator token">==</SPAN> <SPAN class="string token">'APITest'</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">if</SPAN> len<SPAN class="punctuation token">(</SPAN>lyrT<SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">></SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">:</SPAN>
    tZoneLyr <SPAN class="operator token">=</SPAN> lyrT<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="string token">'layerDefinition'</SPAN> <SPAN class="keyword token">in</SPAN> tZoneLyr<SPAN class="punctuation token">:</SPAN>
       z <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">[</SPAN>x<SPAN class="punctuation token">,</SPAN> y<SPAN class="punctuation token">]</SPAN> <SPAN class="keyword token">for</SPAN> x<SPAN class="punctuation token">,</SPAN> y <SPAN class="keyword token">in</SPAN> enumerate<SPAN class="punctuation token">(</SPAN>pubMapJson<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'operationalLayers'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">if</SPAN> y<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'title'</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">==</SPAN> <SPAN class="string token">'APITest'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>
       fldMapJsonCopy<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'operationalLayers'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN>z<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">'layerDefinition'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">'definitionExpression'</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> lyrFilter

final<SPAN class="operator token">=</SPAN> newWebMap<SPAN class="punctuation token">.</SPAN>update<SPAN class="punctuation token">(</SPAN>item_properties<SPAN class="operator token">=</SPAN><SPAN class="punctuation token">{</SPAN><SPAN class="string token">'text'</SPAN><SPAN class="punctuation token">:</SPAN>dumps<SPAN class="punctuation token">(</SPAN>fldMapJsonCopy<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">print</SPAN> <SPAN class="punctuation token">(</SPAN>final<SPAN class="punctuation token">)</SPAN>

‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Any one have any idea what the enumeration is doing here?

ZacharyHart

This is interesting to me because every other thread I've seen regarding this has a process by which you need to extract the JSON from the web map (deepcopy) modify it and then apply the full JSON back to the webmap. Obviously, your method is simpler.

However, I cannot seem to the 'definitionExpression' key by your method. For example:

json_key <SPAN class="operator token">=</SPAN> <SPAN class="string token">'layerDefinition'</SPAN>
<SPAN class="keyword token">for</SPAN> layer <SPAN class="keyword token">in</SPAN> webMapTest<SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="string token">'layerDefinition'</SPAN> <SPAN class="keyword token">in</SPAN> layer<SPAN class="punctuation token">:</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'layerDefinition'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

returns the following for each layer:

NortheastClientsCollector <SPAN class="operator token">-</SPAN> NortheastLines
<SPAN class="punctuation token">{</SPAN><SPAN class="string token">'minScale'</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="number token">80000</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'maxScale'</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">'definitionExpression'</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"LVI_CODE = '0'"</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

however, if you try the following:

json_key <SPAN class="operator token">=</SPAN> <SPAN class="string token">'layerDefinition'</SPAN>
<SPAN class="keyword token">for</SPAN> layer <SPAN class="keyword token">in</SPAN> webMapTest<SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="string token">'layerDefinition'</SPAN> <SPAN class="keyword token">in</SPAN> layer<SPAN class="punctuation token">:</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>
        <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'definitionExpression'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

you get a key error:

KeyError<SPAN class="punctuation token">:</SPAN> <SPAN class="string token">'definitionExpression'</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

printing webMapTest.definition, I can see that 'definitionExpression' is a child element of 'layerDefinition' :

      <SPAN class="string token">"layerDefinition"</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="punctuation token">{</SPAN>
        <SPAN class="string token">"definitionExpression"</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"LVI_CODE = '0'"</SPAN>
      <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

I don't know how to modify that child element.

I'm adding another response to this thread for some additional clarity.

AnttiKajanus

This seems to be a bit old question but I just answered to similar case where layer level properties are added and saved to the webmap (with different property on the layer though) in https://community.esri.com/thread/246654-setting-the-refresh-interval-for-a-hosted-feature-layer#comment-902703

ZacharyHart

When I embarked on this quest several weeks back I had no idea it would be so difficult! If it's any testament to this: I've had a ticket open with support services for almost 2 weeks and they've just escalated it. If/when I find an answer I'll be happy to share it back here!

ZacharyHart

I modified the the loop a bit and it seemed like it was writing the JSON back, but when viewing the map still no luck. Can anyone help???

<SPAN class="keyword token">for</SPAN> layer <SPAN class="keyword token">in</SPAN> newWebMapObject<SPAN class="punctuation token">.</SPAN>layers<SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">for</SPAN> lyz <SPAN class="keyword token">in</SPAN> layersList<SPAN class="punctuation token">:</SPAN>
        <SPAN class="keyword token">if</SPAN> layer<SPAN class="punctuation token">.</SPAN>title <SPAN class="operator token">==</SPAN> lyz<SPAN class="punctuation token">:</SPAN>
            <SPAN class="keyword token">print</SPAN><SPAN class="punctuation token">(</SPAN>layer<SPAN class="punctuation token">.</SPAN>title<SPAN class="punctuation token">)</SPAN>
            jsonCopy<SPAN class="punctuation token">[</SPAN><SPAN class="string token">'operationalLayers'</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="string token">'definitionExpression'</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="operator token">=</SPAN> lyrFilter
            newWebMap<SPAN class="punctuation token">.</SPAN>update<SPAN class="punctuation token">(</SPAN>item_properties<SPAN class="operator token">=</SPAN><SPAN class="punctuation token">{</SPAN><SPAN class="string token">'text'</SPAN><SPAN class="punctuation token">:</SPAN>json<SPAN class="punctuation token">.</SPAN>dumps<SPAN class="punctuation token">(</SPAN>jsonCopy<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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