VB.NET UWP/WinRT Dynamics CRM: Get an Account's Contacts

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Returns the full name, email address, and phone number for each of an account's contacts. This example gets the contacts for the Coho Winery account (accountid = b0a19cdd-88df-e311-b8e5-6c3be5a8b200).

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 "$select=fullname,emailaddress1,telephone1" \
  -d "$filter=_parentcustomerid_value eq b0a19cdd-88df-e311-b8e5-6c3be5a8b200" \
  -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("$select","fullname,emailaddress1,telephone1")
rest.AddQueryParam("$filter","_parentcustomerid_value eq b0a19cdd-88df-e311-b8e5-6c3be5a8b200")

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 fullname As String = jsonResponse.StringOf("value[i].fullname")
    Dim emailaddress1 As String = jsonResponse.StringOf("value[i].emailaddress1")
    Dim telephone1 As String = jsonResponse.StringOf("value[i].telephone1")
    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(fullname,emailaddress1,telephone1)",
  "value": [
    {
      "@odata.etag": "W/\"1162014\"",
      "fullname": "Cat Francis",
      "emailaddress1": "Cat@cohowinery.com",
      "telephone1": "123-879-9879",
      "contactid": "51a0e5b9-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1162210\"",
      "fullname": "Tomasz Bochenek",
      "emailaddress1": "tom@cohowinery.com",
      "telephone1": "456-698-4581",
      "contactid": "1fa1e5b9-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1162593\"",
      "fullname": "Kari Furse",
      "emailaddress1": "kari@cohowinery.com",
      "telephone1": "178-854-4576",
      "contactid": "9ba2e5b9-88df-e311-b8e5-6c3be5a8b200"
    },
    {
      "@odata.etag": "W/\"1162714\"",
      "fullname": "Wilson Pais",
      "emailaddress1": "wilson@cohowinery.com",
      "telephone1": "456-698-4582",
      "contactid": "6fa5e5b9-88df-e311-b8e5-6c3be5a8b200"
    }
  ]
}