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(DataFlex) Find Contact Having Email Address

Demonstrates how to fetch the Google Contact for a given email address.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoJsonToken
    Boolean iSuccess
    Variant vGAuth
    Handle hoGAuth
    Handle hoRest
    Boolean iBAutoReconnect
    String sEmailAddressToFind
    Variant vSbResponseBody
    Handle hoSbResponseBody
    Handle hoXml
    Integer iTotalResults
    Integer iStartIndex
    Integer iItemsPerPage
    Handle hoFac
    Integer iNumEntries
    Integer i
    String sIdUrl
    String sContactId
    String sFullName
    String sEmailAddress
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    // 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

    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonToken
    If (Not(IsComObjectCreated(hoJsonToken))) Begin
        Send CreateComObject of hoJsonToken
    End
    Get ComLoadFile Of hoJsonToken "qa_data/tokens/googleContacts.json" To iSuccess
    If (iSuccess <> True) Begin
        Showln "Failed to load googleContacts.json"
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatAuthGoogle)) To hoGAuth
    If (Not(IsComObjectCreated(hoGAuth))) Begin
        Send CreateComObject of hoGAuth
    End
    Get ComStringOf Of hoJsonToken "access_token" To sTemp1
    Set ComAccessToken Of hoGAuth To sTemp1

    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End

    // Connect using TLS.
    Move True To iBAutoReconnect
    Get ComConnect Of hoRest "www.google.com" 443 True iBAutoReconnect To iSuccess

    // Provide the authentication credentials (i.e. the access token)
    Get pvComObject of hoGAuth to vGAuth
    Get ComSetAuthGoogle Of hoRest vGAuth To iSuccess

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

    // To retrieve the contacts, we need to send the following:

    // 	GET /m8/feeds/contacts/default/full?q=<emailAddress>
    // 	GData-Version: 3.0

    // Get the contact (or contacts) with this email address:
    Move "admin@chilkatsoft.com" To sEmailAddressToFind

    Get ComAddHeader Of hoRest "GData-Version" "3.0" To iSuccess
    Get ComAddQueryParam Of hoRest "q" sEmailAddressToFind To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponseBody
    If (Not(IsComObjectCreated(hoSbResponseBody))) Begin
        Send CreateComObject of hoSbResponseBody
    End
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComFullRequestNoBodySb Of hoRest "GET" "/m8/feeds/contacts/default/full" vSbResponseBody To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // A successful response will have a status code equal to 200.
    Get ComResponseStatusCode Of hoRest To iTemp1
    If (iTemp1 <> 200) Begin
        Get ComResponseStatusCode Of hoRest To iTemp1
        Showln "response status code = " iTemp1
        Get ComResponseStatusText Of hoRest To sTemp1
        Showln "response status text = " sTemp1
        Get ComResponseHeader Of hoRest To sTemp1
        Showln "response header: " sTemp1
        Get ComGetAsString Of hoSbResponseBody To sTemp1
        Showln "response body: " sTemp1
        Procedure_Return
    End

    // If the 200 response was received, then the contacts XML is contained
    // in the response body.
    Get Create (RefClass(cComChilkatXml)) To hoXml
    If (Not(IsComObjectCreated(hoXml))) Begin
        Send CreateComObject of hoXml
    End
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComLoadSb Of hoXml vSbResponseBody False To iSuccess

    // See below for a sample response body.
    Get ComSaveXml Of hoXml "qa_output/google_contacts.xml" To iSuccess

    // Now let's parse the XML...

    // Get the the total number of results, the start index, and the items per page.
    // We'll likely NOT get the full list, but will instead get the 1st page.
    Get ComGetChildIntValue Of hoXml "openSearch:totalResults" To iTotalResults
    Get ComGetChildIntValue Of hoXml "openSearch:startIndex" To iStartIndex
    Get ComGetChildIntValue Of hoXml "openSearch:itemsPerPage" To iItemsPerPage
    Showln "totalResults = " iTotalResults
    Showln "startIndex = " iStartIndex
    Showln "itemsPerPage = " iItemsPerPage

    // We'll borrow a method from FileAccess to get the contactId from the URL string (see the code in the while loop)
    Get Create (RefClass(cComCkFileAccess)) To hoFac
    If (Not(IsComObjectCreated(hoFac))) Begin
        Send CreateComObject of hoFac
    End

    // Iterate over each contact.
    Get ComNumChildrenHavingTag Of hoXml "entry" To iNumEntries
    Move 0 To i
    While (i < iNumEntries)
        Set ComI Of hoXml To i
        Showln (i + 1) " ----"
        Get ComGetChildContent Of hoXml "entry[i]|title" To sTemp1
        Showln "title: " sTemp1

        // The entry "id" child contains a URL having this format:
        // <id>http://www.google.com/m8/feeds/contacts/{userEmail}/base/{contactId}</id>
        // Let's get the URL and parse the contactId from it..
        Get ComGetChildContent Of hoXml "entry[i]|id" To sIdUrl
        Showln "id: " sIdUrl

        // Use the parsing ability of GetFileName to get the contactId
        Get ComGetFileName Of hoFac sIdUrl To sContactId
        Showln "contactId: " sContactId

        Get ComChilkatPath Of hoXml "entry[i]|gd:name|gd:fullName|*" To sFullName
        Get ComLastMethodSuccess Of hoXml To bTemp1
        If (bTemp1 = True) Begin
            Showln "fullName: " sFullName
        End

        Get ComChilkatPath Of hoXml "entry[i]|gd:email|(address)" To sEmailAddress
        Get ComLastMethodSuccess Of hoXml To bTemp1
        If (bTemp1 = True) Begin
            Showln "email address: " sEmailAddress
        End

        Move (i + 1) To i
    Loop



End_Procedure

 

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