(PowerBuilder) Update a Google Contact

Demonstrates how to update a Google Contact.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_JsonToken
integer li_Success
oleobject loo_GAuth
oleobject loo_Rest
integer li_BAutoReconnect
oleobject loo_SbPath
integer li_NumReplacements
oleobject loo_SbResponseBody
oleobject loo_Xml
string ls_LastKnownEtag
oleobject loo_SbRequestBody

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// --------------------------------------------------------------------------------------------------------
// Note: The code for setting up the Chilkat REST object and making the initial connection can be done once.
// Once connected, the REST object may be re-used for many REST API calls.
// (It's a good idea to put the connection setup code in a separate function/subroutine.)
// --------------------------------------------------------------------------------------------------------

// It is assumed we previously obtained an OAuth2 access token.
// This example loads the JSON access token file 
// saved by this example: Get Google Contacts OAuth2 Access Token

loo_JsonToken = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_JsonToken.LoadFile("qa_data/tokens/googleContacts.json")
if li_Success <> 1 then
    Write-Debug "Failed to load googleContacts.json"
    destroy loo_JsonToken
    return
end if

loo_GAuth = create oleobject
// Use "Chilkat_9_5_0.AuthGoogle" for versions of Chilkat < 10.0.0
li_rc = loo_GAuth.ConnectToNewObject("Chilkat.AuthGoogle")

loo_GAuth.AccessToken = loo_JsonToken.StringOf("access_token")

loo_Rest = create oleobject
// Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")

// Connect using TLS.
li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("www.google.com",443,1,li_BAutoReconnect)

// Provide the authentication credentials (i.e. the access token)
loo_Rest.SetAuthGoogle(loo_GAuth)

// ----------------------------------------------
// OK, the REST connection setup is completed..
// ----------------------------------------------

// To update a contact, we'll first get the contact information,
// then we'll make changes to the XML and then PUT the update.

// To retrieve the contact, send the following:
// 	GET /m8/feeds/contacts/default/full/{contactId}
// 	GData-Version: 3.0

loo_Rest.AddHeader("GData-Version","3.0")

loo_SbPath = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbPath.ConnectToNewObject("Chilkat.StringBuilder")

loo_SbPath.Append("/m8/feeds/contacts/default/full/{contactId}")
// Get the contact having contactId = "5b6d64980b1ed462"
li_NumReplacements = loo_SbPath.Replace("{contactId}","5b6d64980b1ed462")

loo_SbResponseBody = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

li_Success = loo_Rest.FullRequestNoBodySb("GET",loo_SbPath.GetAsString(),loo_SbResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_JsonToken
    destroy loo_GAuth
    destroy loo_Rest
    destroy loo_SbPath
    destroy loo_SbResponseBody
    return
end if

// A successful response will have a status code equal to 200.
if loo_Rest.ResponseStatusCode <> 200 then
    Write-Debug "response status code = " + string(loo_Rest.ResponseStatusCode)
    Write-Debug "response status text = " + loo_Rest.ResponseStatusText
    Write-Debug "response header: " + loo_Rest.ResponseHeader
    Write-Debug "response body: " + loo_SbResponseBody.GetAsString()
    destroy loo_JsonToken
    destroy loo_GAuth
    destroy loo_Rest
    destroy loo_SbPath
    destroy loo_SbResponseBody
    return
end if

// If the 200 response was received, then the contacts XML is contained
// in the response body.
loo_Xml = create oleobject
// Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
li_rc = loo_Xml.ConnectToNewObject("Chilkat.Xml")

loo_Xml.LoadSb(loo_SbResponseBody,0)

// Get the etag:
ls_LastKnownEtag = loo_Xml.GetAttrValue("gd:etag")
Write-Debug "lastKnownEtag = " + ls_LastKnownEtag

// Update the XML.
// We're going to add or update with the following information:

// 	  <gd:name>
// 	    <gd:givenName>Joe</gd:givenName>
// 	    <gd:familyName>Sample</gd:familyName>
// 	    <gd:fullName>Joe Sample</gd:fullName>
// 	  </gd:name>
// 	  <content type="text">RIP Joe Sample, a great musician...</content>
// 	  <gd:extendedProperty name="pet" value="hamster"/>

loo_Xml.UpdateChildContent("gd:name|gd:givenName","Joe")
loo_Xml.UpdateChildContent("gd:name|gd:familyName","Sample")
loo_Xml.UpdateChildContent("gd:name|gd:fullName","Joe Sample")
loo_Xml.UpdateChildContent("content","RIP Joe Sample, a great musician...")
loo_Xml.UpdateAttrAt("content",1,"type","text")
loo_Xml.UpdateAttrAt("gd:extendedProperty",1,"name","pet")
loo_Xml.UpdateAttrAt("gd:extendedProperty",1,"value","hamster")

// Send the following:

// 	PUT /m8/feeds/contacts/default/full/{contactId}
// 	If-Match: {lastKnownEtag}
// 	GData-Version: 3.0
// 	Content-Type: application/atom+xml

loo_Rest.ClearAllHeaders()
loo_Rest.AddHeader("If-Match",ls_LastKnownEtag)
loo_Rest.AddHeader("GData-Version","3.0")
loo_Rest.AddHeader("Content-Type","application/atom+xml")

loo_SbRequestBody = create oleobject
// Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0
li_rc = loo_SbRequestBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_Xml.GetXmlSb(loo_SbRequestBody)

// The sbPath already contains the correct path..
li_Success = loo_Rest.FullRequestSb("PUT",loo_SbPath.GetAsString(),loo_SbRequestBody,loo_SbResponseBody)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_JsonToken
    destroy loo_GAuth
    destroy loo_Rest
    destroy loo_SbPath
    destroy loo_SbResponseBody
    destroy loo_Xml
    destroy loo_SbRequestBody
    return
end if

// A successful response will have a status code equal to 200.
if loo_Rest.ResponseStatusCode <> 200 then
    Write-Debug "response status code = " + string(loo_Rest.ResponseStatusCode)
    Write-Debug "response status text = " + loo_Rest.ResponseStatusText
    Write-Debug "response header: " + loo_Rest.ResponseHeader
    Write-Debug "response body: " + loo_SbResponseBody.GetAsString()
    destroy loo_JsonToken
    destroy loo_GAuth
    destroy loo_Rest
    destroy loo_SbPath
    destroy loo_SbResponseBody
    destroy loo_Xml
    destroy loo_SbRequestBody
    return
end if

// If the 200 response was received, then the updated contact XML is contained
// in the response body.
loo_Xml.LoadSb(loo_SbResponseBody,0)

Write-Debug "Response Body:"
Write-Debug loo_Xml.GetXml()
Write-Debug "Success."


destroy loo_JsonToken
destroy loo_GAuth
destroy loo_Rest
destroy loo_SbPath
destroy loo_SbResponseBody
destroy loo_Xml
destroy loo_SbRequestBody