VB.NET UWP/WinRT Dynamics CRM: Lookup Contact ID using Full Name

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Find a contactid given a fullname.

Documentation: https://docs.microsoft.com/en-us/dynamics365/customer-engagement/web-api/contact?view=dynamics-ce-odata-9

CURL Command

curl -X GET https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/contacts
  -H "Accept: application/json" \
  -H "OData-MaxVersion: 4.0"  \
  -H "OData-Version: 4.0" \
  -d "$select=contactid" \
  -d "$filter=fullname eq 'Tomasz Bochenek'" \
  -H "Authorization: Bearer DYNAMICS_CRM_ACCESS_TOKEN"

VB.NET UWP/WinRT Example

Dim rest As New Chilkat.Rest
Dim success As Boolean

'  URL: https://my-dynamics-domain.api.crm.dynamics.com/api/data/v9.0/contacts
Dim bTls As Boolean = True
Dim port As Integer = 443
Dim bAutoReconnect As Boolean = True
success = Await rest.ConnectAsync("my-dynamics-domain.api.crm.dynamics.com",port,bTls,bAutoReconnect)
If (success <> True) Then
    Debug.WriteLine("ConnectFailReason: " & rest.ConnectFailReason)
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


rest.AddQueryParam("$select","contactid")
rest.AddQueryParam("$filter","fullname eq 'Tomasz Bochenek'")

rest.AddHeader("OData-MaxVersion","4.0")
rest.AddHeader("Accept","application/json")
rest.AddHeader("OData-Version","4.0")
rest.AddHeader("Authorization","Bearer DYNAMICS_CRM_ACCESS_TOKEN")

Dim sbResponseBody As New Chilkat.StringBuilder
success = Await rest.FullRequestNoBodySbAsync("GET","/api/data/v9.0/contacts",sbResponseBody)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Dim respStatusCode As Integer = rest.ResponseStatusCode
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Status Code = " & respStatusCode)
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(rest.ResponseHeader)
    Debug.WriteLine("Response Body:")
    Debug.WriteLine(sbResponseBody.GetAsString())
    Exit Sub
End If


Dim jsonResponse As New Chilkat.JsonObject
jsonResponse.LoadSb(sbResponseBody)

Dim i As Integer
Dim count_i As Integer

Dim odataContext As String = jsonResponse.StringOf("""@odata.context""")
i = 0
count_i = jsonResponse.SizeOfArray("value")
While i < count_i
    jsonResponse.I = i
    Dim odataEtag As String = jsonResponse.StringOf("value[i].""@odata.etag""")
    Dim contactid As String = jsonResponse.StringOf("value[i].contactid")
    i = i + 1
End While

Sample JSON Response Body

{
  "@odata.context": "https://mydomain.api.crm.dynamics.com/api/data/v9.0/$metadata#contacts(contactid)",
  "value": [
    {
      "@odata.etag": "W/\"1162210\"",
      "contactid": "1fa1e5b9-88df-e311-b8e5-6c3be5a8b200"
    }
  ]
}