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    <title>topic Esri Request and callbackParamName in ArcGIS JavaScript Maps SDK Questions</title>
    <link>https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/esri-request-and-callbackparamname/m-p/307099#M28194</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I have a url that returns a callback (JSONP):&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="http://warrencountyny.gov/rp/section.php?r=text&amp;amp;pk=302.15-12-24&amp;amp;town=520500"&gt;http://warrencountyny.gov/rp/section.php?r=text&amp;amp;pk=302.15-12-24&amp;amp;town=520500&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;What is the proper way to use esriRequest with JSONP?&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;I have:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;esriRequest(url, { callbackParamName: 'callback' }).then(function (result) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(result);&lt;BR /&gt; }).otherwise(function (err) { console.log(err); });&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;This fails with an expected JSON error.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;If I do:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;esriRequest(url, { &lt;STRONG&gt;responseType:'jsonp'&lt;/STRONG&gt;, callbackParamName: 'callback' }).then(function (result) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(result);&lt;BR /&gt; }).otherwise(function (err) { console.log(err); });&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;It returns the&amp;nbsp;data (result.data) as a string:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;callback({&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;"file": "Glens Falls/Glens Falls_302.15.pdf",&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;"size": "372.72 kB"&lt;BR /&gt;});&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;If I do this inside, I can get the "file":&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;P&gt;esriRequest(url, { responseType: 'jsonp', callbackParamName: 'callback' }).then(function (response) {&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;var jsonp = response.data;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;var f = new Function('callback', jsonp);&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;f(function (json) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(json.file);&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;});&lt;/P&gt;&lt;P&gt;}).otherwise(function (err) { console.log(err); });&lt;/P&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;Is this the right way to do this, or am I missing something? Any thoughts are appreciated.&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 13 Dec 2017 23:25:05 GMT</pubDate>
    <dc:creator>JamesS1</dc:creator>
    <dc:date>2017-12-13T23:25:05Z</dc:date>
    <item>
      <title>Esri Request and callbackParamName</title>
      <link>https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/esri-request-and-callbackparamname/m-p/307099#M28194</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;I have a url that returns a callback (JSONP):&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="http://warrencountyny.gov/rp/section.php?r=text&amp;amp;pk=302.15-12-24&amp;amp;town=520500"&gt;http://warrencountyny.gov/rp/section.php?r=text&amp;amp;pk=302.15-12-24&amp;amp;town=520500&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;What is the proper way to use esriRequest with JSONP?&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;I have:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;esriRequest(url, { callbackParamName: 'callback' }).then(function (result) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(result);&lt;BR /&gt; }).otherwise(function (err) { console.log(err); });&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;This fails with an expected JSON error.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;If I do:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;esriRequest(url, { &lt;STRONG&gt;responseType:'jsonp'&lt;/STRONG&gt;, callbackParamName: 'callback' }).then(function (result) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(result);&lt;BR /&gt; }).otherwise(function (err) { console.log(err); });&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;It returns the&amp;nbsp;data (result.data) as a string:&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;SPAN style="color: #222222;"&gt;callback({&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;"file": "Glens Falls/Glens Falls_302.15.pdf",&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;"size": "372.72 kB"&lt;BR /&gt;});&lt;/SPAN&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;If I do this inside, I can get the "file":&lt;/SPAN&gt;&lt;/P&gt;&lt;BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"&gt;&lt;P&gt;esriRequest(url, { responseType: 'jsonp', callbackParamName: 'callback' }).then(function (response) {&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;var jsonp = response.data;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;var f = new Function('callback', jsonp);&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;f(function (json) {&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;console.log(json.file);&lt;BR /&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;});&lt;/P&gt;&lt;P&gt;}).otherwise(function (err) { console.log(err); });&lt;/P&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #222222;"&gt;Is this the right way to do this, or am I missing something? Any thoughts are appreciated.&lt;/SPAN&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 13 Dec 2017 23:25:05 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/esri-request-and-callbackparamname/m-p/307099#M28194</guid>
      <dc:creator>JamesS1</dc:creator>
      <dc:date>2017-12-13T23:25:05Z</dc:date>
    </item>
    <item>
      <title>Re: Esri Request and callbackParamName</title>
      <link>https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/esri-request-and-callbackparamname/m-p/307100#M28195</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Since it is working as I have it in the last example, I'm going to leave it as it is for now.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 19 Dec 2017 14:21:38 GMT</pubDate>
      <guid>https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/esri-request-and-callbackparamname/m-p/307100#M28195</guid>
      <dc:creator>JamesS1</dc:creator>
      <dc:date>2017-12-19T14:21:38Z</dc:date>
    </item>
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