I'm trying to create a SharePoint site using the REST API with Powershell. I've successfully created lists, modified lists, and many other things but creating a site has me stumped. Below is the code that builds the request that I invoke. Authentication works so I have removed those sections of code. When I run the script I get a 400 Bad Request so I'm thinking that I'm not including something in the headers or in the body. Any help would be greatly appreciated!

$webURL = "https:// <SharePoint site URL> "
$urlAuth = $webUrl + "/_api/web/webinfos/add"

<Section Removed - Get FedAuth Token>

<Section Removed - Get FormDigest Value>

params = @{} 
params.Headers = @{"Accept" = "application/json; odata=verbose"; "X-RequestDigest" = $formDigest; "Content-Type" = "application/json;odata=verbose"} params.Uri = $urlAuth 
params.Body = [pscustomobject]@{
       _metadata = @{type = "SP.WebCreationInformation"}
       Url = "testsubsite"
       Title = "testsubsite"
       Description = "siteDescription"
       Language = "1033"
       WebTemplate = "STS"
       UseUniquePermissions = "False"
       } | ConvertTo-Json 
$params.Method = "POST" 
$params.WebSession = $session

$response = Invoke-RestMethod @params
New contributor
nboothe is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct.
  • Which version of SharePoint? – Nullldata Aug 14 at 12:56
  • @Nullldata - Sharepoint 2013 – nboothe Aug 14 at 12:58
  • I've added tags to your question to indicate SharePoint 2013. It helps! :) – Nullldata Aug 14 at 13:04
  • Just out of interest, does it have to be using REST? There are other ways to create SharePoint sites in PowerShell: New-SPSite and New-SPWeb are 2 cmdlets that can help with this... – Nullldata Aug 14 at 13:16
  • @Nullldata - I have use certificate based authentication to do anything on SharePoint. I was under the assumption that I couldn't use the cmdlets with certificate based authentication. Is this a correct assumption? Cmdlets would make this so much easier. – nboothe Aug 14 at 13:34

Your Answer

nboothe is a new contributor. Be nice, and check out our Code of Conduct.

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.