Getting content

You use the HTTP GET command with parameters to retrieve content from a repository.

Use the cmisselector parameter to define which content you want returned on a resource. For example if you want the children of an object:

cmisselector=children

The URL to get all of the children of the root/test node in the repository looks like this:

http://localhost:8080/alfresco/api/-default-/public/cmis/versions/1.1/browser/root/test?cmisselector=children

All content will be returned as JSON by default.

returning JSONP

In some cases you might want to request data from a server in a different domain, this is normally prohibited by web browsers due to their same origin policy. CMIS 1.1 uses the callback parameter to return JSONP. This format also known as JSON with padding returns JavaScript code. It is evaluated by the JavaScript interpreter, not parsed by a JSON parser. You use the callback parameter to provide a JavaScript function to cope with the returned JSONP. For example the following function would write repository information into an HTML page:

  <script type="text/javascript"> 
  function showRepositoryInfo(repositoryInfo) { 
  for(repId in repositoryInfo) {
  var ri = repositoryInfo [repId];   
  document.write("<h1>Information</h1>"); 
  document.write("<ul>");  
  document.write("<li>ID..."
  + ri.repositoryID+"</li>"); 
  document.write("<li>Name..."
  + ri.productName+"</li>");
  document.write("<li>Description..."
  + ri.productVersion);
  document.write("</li>"); 
  document.write("</ul>"); 
  }
}

The following function would invoke the CMIS URL GET with the callback function showRepositoryInfo.

  <script type="text/javascript" 
src="/alfresco/api/-default-/public/cmis/versions/1.1/browser?callback=showRepositoryInfo">
</script>

The JSONP returned would look like this:

  showRepositoryInfo (
{"-default-":{ 
”vendorName":”Alfresco",
”productName" : ”SkyVault Enterprise”,
"productVersion": "4.2.0 (r56201)“
  }
 }
)

Search form

Search form

You are here

returning JSONP