I am using Sitecore 10.3 SXA Headless and using NextJS Page Router for my Front-end. Basically, I want to create an item by using graphQL mutation method. I have followed this stackexchange issue and also added this below shown configuration as mentioned in the answer,

<configuration>
  <sitecore>
    <pipelines>
      <owin.cookieAuthentication.validateIdentity>
        <processor type="Sitecore.Owin.Authentication.Pipelines.CookieAuthentication.ValidateIdentity.ValidateSiteNeutralPaths, Sitecore.Owin.Authentication">
          <siteNeutralPaths hint="list">
             <path hint="graphql">/sitecore/api/graph/items/</path>
          </siteNeutralPaths>
        </processor>
      </owin.cookieAuthentication.validateIdentity>
    </pipelines>
  </sitecore>
</configuration>

I have created templates and fields as required and added the GraphQL query as mentioned, but still I am facing some issue in the GraphQL Edge Playground, which says...

{
  "errors": [
    {
      "message": "GraphQL.ExecutionError: Schema is not configured for mutations ---> GraphQL.ExecutionError: Schema is not configured for mutations\r\n   at GraphQL.Execution.ExecutionHelper.GetOperationRootType(Document document, ISchema schema, Operation operation)\r\n   at GraphQL.Execution.ExecutionStrategy.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at GraphQL.DocumentExecuter.<ExecuteAsync>d__8.MoveNext()\r\n   --- End of inner exception stack trace ---",
      "extensions": {
        "code": "EXECUTION_ERROR"
      }
    }
  ]
}

Btw, I am a newbie in Sitecore and JSS, thanks 🙂

I am using Sitecore 10.3 SXA Headless and using NextJS Page Router for my Front-end. Basically, I want to create an item by using graphQL mutation method. I have followed this stackexchange issue and also added this below shown configuration as mentioned in the answer,

<configuration>
  <sitecore>
    <pipelines>
      <owin.cookieAuthentication.validateIdentity>
        <processor type="Sitecore.Owin.Authentication.Pipelines.CookieAuthentication.ValidateIdentity.ValidateSiteNeutralPaths, Sitecore.Owin.Authentication">
          <siteNeutralPaths hint="list">
             <path hint="graphql">/sitecore/api/graph/items/</path>
          </siteNeutralPaths>
        </processor>
      </owin.cookieAuthentication.validateIdentity>
    </pipelines>
  </sitecore>
</configuration>

I have created templates and fields as required and added the GraphQL query as mentioned,

mutation CreateItem {
  createItem(
    name: "ExampleItem"
    template: "{1706CEB1-318A-4D71-A1B8-6FCCEA238762}"
    parent: "{27ACB186-4F20-44E8-BD94-8C1C73F97529}"
    language: "en"
    fields: [
      { name: "Title", value: "'Example Item'" }
      { name: "Text", value: "'This is an example item created with GraphQL'" }
    ]
  ) {
    path
  }
}

but still I am facing some issue in the GraphQL Edge Playground, which says...

{
  "errors": [
    {
      "message": "GraphQL.ExecutionError: Schema is not configured for mutations ---> GraphQL.ExecutionError: Schema is not configured for mutations\r\n   at GraphQL.Execution.ExecutionHelper.GetOperationRootType(Document document, ISchema schema, Operation operation)\r\n   at GraphQL.Execution.ExecutionStrategy.<ExecuteAsync>d__0.MoveNext()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at GraphQL.DocumentExecuter.<ExecuteAsync>d__8.MoveNext()\r\n   --- End of inner exception stack trace ---",
      "extensions": {
        "code": "EXECUTION_ERROR"
      }
    }
  ]
}

Btw, I am a newbie in Sitecore and JSS, thanks 🙂