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POJSON parameter size limit
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  1. POJSON parameter size limit
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    copied!<p>I am calling my WCF Web service using jQuery $.ajax json POST.<br/><br/> One of the input parameters is very long - over 8000 bytes. The data in it is a comma-separated list of GUIDs, like this "78dace54-1eea-4b31-8a43-dcd01e172d14,ce485e64-e7c6-481c-a424-2624371180aa,ede4c606-f743-4e0a-a8cc-59bcffa7feda,f0a81ed1-80db-4f6d-92d7-2fc47759a409".<br/><br/> When that parameter is <strong>8176 bytes</strong> long, the <strong>request succeeds</strong>. When it's <strong>8213</strong> (one more comma and GUID) - the <strong>request fails</strong>.<br/><br/> It fails from the browser and from Fiddler (HTTP debugging proxy). I added this to the webservice config:</p> <pre><code>&lt;configuration&gt; &lt;system.web.extensions&gt; &lt;scripting&gt; &lt;webServices&gt; &lt;jsonSerialization maxJsonLength="50000000" recursionLimit="50000"/&gt; &lt;/webServices&gt; &lt;/scripting&gt; &lt;/system.web.extensions&gt; </code></pre> <p>That does not make any difference, the request still fails for input param over 8176 bytes long.<br/> That input param maps into a String on the WCF side. <br/> What am I missing? Thank you!</p> <p>UPDATE, this solved my problem: Turns out that this setting controls the total JSON message length</p> <pre><code>&lt;webServices&gt; &lt;jsonSerialization maxJsonLength="50000000" recursionLimit="50000"/&gt; &lt;/webServices&gt; </code></pre> <p>There is another setting that controls maximum length for individual parameters:</p> <pre><code>&lt;bindings&gt; &lt;webHttpBinding&gt; &lt;binding name="Binding_Name" maxReceivedMessageSize="900000"&gt; &lt;readerQuotas maxDepth="32" maxStringContentLength="900000" maxBytesPerRead="900000" maxArrayLength="120000" maxNameTableCharCount="120000"/&gt; &lt;/binding&gt; &lt;/webHttpBinding&gt; &lt;/bindings&gt; </code></pre> <p>Also, make sure to set this:</p> <pre><code> &lt;system.web&gt; &lt;httpRuntime maxRequestLength="900000"/&gt; </code></pre> <p>Hope this takes care of some headaches out there!</p>
 

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