Android Question Curl to Http2

CURL EXAMPLE (WORKING)
curl -X POST  https://mamamilano.it/api/2022-04/graphql.json --header "Content-Type: application/graphql" --header "X-Shopify-Storefront-Access-Token: 103e090cf984b47fc28867d2a538b562" --data "{ customer(customerAccessToken: ""00286f5a065ef1f6f3d79cbb699dd009"") { id, firstName, lastName}}"

Response
{"data":{"customer":{"id":"gid:\/\/shopify\/Customer\/6154312974587","firstName":"Info","lastName":"Brambilla"}}}


B4X Conversion

Sub Class_Globals
    Private Root As B4XView
    Private xui As XUI
End Sub

Public Sub Initialize
'    B4XPages.GetManager.LogEvents = True
End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("MainPage")
   
    Dim job1 As HttpJob
    job1.Initialize("",Me)
    Dim GetUser As String = "{ customer(customerAccessToken: ""00286f5a065ef1f6f3d79cbb699dd009"") { id, firstName, lastName}}"
    job1.PostString("https://www.mamamilano.it/api/2022-01/graphql.json", GetUser)
    job1.GetRequest.SetHeader("X-Shopify-Storefront-Access-Token","103e090cf984b47fc28867d2a538b562")
    job1.GetRequest.SetHeader("Content-Type","application/graphql")
    'job1.GetRequest.SetContentType("application/json")
   
    Wait For (job1) JobDone(job1 As HttpJob)

    If job1.Success = True Then

        Log("Job:" & job1.JobName & "Success OK" )
        Dim res As String
        res = job1.GetString
        Log("Response from server: " & res)

        Dim parser As JSONParser
        parser.Initialize(res)


Else

    Log("Error: " & job1.ErrorMessage)
End If
End Sub