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DataFlex Examples

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(DataFlex) Outlook -- Create Map of Folder Paths to IDs

Recursively descends folders and creates a hashtable of folder paths to IDs. This can be done once at the start of your program (or even less if the map is persisted to a file or database).

The reason this is necessary is because folder ID's need to be passed to the Outlook API, and an application will typically be working with folder paths.

Note: This example requires Chilkat v9.5.0.67 or greater.

This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoHttp
    Handle hoFolderMap
    Variant vSbResponse
    Handle hoSbResponse
    Boolean iSuccess
    Boolean iSuccess
    Handle hoJson
    Handle hoIdQueue
    Handle hoSbFolderPath
    Handle hoSbQueueEntry
    String sFolderName
    String sFolderPath
    String sFolderId
    Integer i
    Integer iNumFolders
    String sParentFolderPath
    String sParentFolderId
    Variant vSbFolderMapXml
    Handle hoSbFolderMapXml
    Handle hoHt2
    Variant vSb2
    Handle hoSb2
    String sTemp1
    Integer iTemp1

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

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // Our folder path --> ID map will be stored in this hash table.
    Get Create (RefClass(cComChilkatHashtable)) To hoFolderMap
    If (Not(IsComObjectCreated(hoFolderMap))) Begin
        Send CreateComObject of hoFolderMap
    End

    // Use your previously obtained access token here:
    // See the following examples for getting an access token:
    //    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
    //    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
    //    Refresh Access Token (Azure AD v2.0 Endpoint).
    //    Refresh Access Token (Azure AD Endpoint).

    Set ComAuthToken Of hoHttp To "MICROSOFT_GRAPH_ACCESS_TOKEN"

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponse
    If (Not(IsComObjectCreated(hoSbResponse))) Begin
        Send CreateComObject of hoSbResponse
    End

    // Begin by getting the top-level folders.
    Send ComClearUrlVars To hoHttp
    Get ComSetUrlVar Of hoHttp "userPrincipalName" "chilkatsoft@outlook.com" To iSuccess
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComQuickGetSb Of hoHttp "https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/mailFolders" vSbResponse To iSuccess
    Get ComLastStatus Of hoHttp To iTemp1
    If ((iSuccess <> True) And (iTemp1 = 0)) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get pvComObject of hoSbResponse to vSbResponse
    Get ComLoadSb Of hoJson vSbResponse To iSuccess
    Set ComEmitCompact Of hoJson To False

    Get ComLastStatus Of hoHttp To iTemp1
    Showln "Status code = " iTemp1
    Get ComLastStatus Of hoHttp To iTemp1
    If (iTemp1 <> 200) Begin
        Get ComEmit Of hoJson To sTemp1
        Showln sTemp1
        Showln "Failed."
    End

    // This is our queue/stack of unprocessed folder ID's
    // The recursive nature of this example is that we get the 
    // child folders for each folder ID in the idQueue, which may
    // cause additional ID's to be added.  We continue  until the idQueue
    // is empty.
    Get Create (RefClass(cComCkStringArray)) To hoIdQueue
    If (Not(IsComObjectCreated(hoIdQueue))) Begin
        Send CreateComObject of hoIdQueue
    End

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbFolderPath
    If (Not(IsComObjectCreated(hoSbFolderPath))) Begin
        Send CreateComObject of hoSbFolderPath
    End
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbQueueEntry
    If (Not(IsComObjectCreated(hoSbQueueEntry))) Begin
        Send CreateComObject of hoSbQueueEntry
    End

    // Prime the map and idQueue with the top-level folders.
    Move 0 To i
    Get ComSizeOfArray Of hoJson "value" To iNumFolders
    While (i < iNumFolders)
        Set ComI Of hoJson To i
        Get ComStringOf Of hoJson "value[i].displayName" To sFolderName
        Get ComStringOf Of hoJson "value[i].id" To sFolderId
        Get ComSetString Of hoSbFolderPath "/" To iSuccess
        Get ComAppend Of hoSbFolderPath sFolderName To iSuccess
        Get ComGetAsString Of hoSbFolderPath To sFolderPath
        Get ComAddStr Of hoFolderMap sFolderPath sFolderId To iSuccess
        Showln sFolderPath " --> " sFolderId

        // Push the folder path + id onto the idQueue.
        Send ComClear To hoSbQueueEntry
        Get ComSetNth Of hoSbQueueEntry 0 sFolderPath "|" False False To iSuccess
        Get ComSetNth Of hoSbQueueEntry 1 sFolderId "|" False False To iSuccess
        Get ComGetAsString Of hoSbQueueEntry To sTemp1
        Get ComAppend Of hoIdQueue sTemp1 To iSuccess
        Move (i + 1) To i
    Loop

    // Initial output:
    // /Archive --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAG8XunwAAAA=
    // /Deleted Items --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEKAAAA
    // /Drafts --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA
    // /Inbox --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA
    // /Junk Email --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEiAAAA
    // /Outbox --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgELAAAA
    // /Sent Items --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEJAAAA
    // 

    // Process the idQueue until it becomes empty.  This is the recursive loop.

    While ((ComLength(hoIdQueue)) > 0)
        Get ComGetString Of hoIdQueue 0 To sTemp1
        Get ComSetString Of hoSbQueueEntry sTemp1 To iSuccess
        Get ComRemoveAt Of hoIdQueue 0 To iSuccess

        Get ComGetNth Of hoSbQueueEntry 0 "|" False False To sParentFolderPath
        Get ComGetNth Of hoSbQueueEntry 1 "|" False False To sParentFolderId

        Get ComSetUrlVar Of hoHttp "id" sParentFolderId To iSuccess
        Get pvComObject of hoSbResponse to vSbResponse
        Get ComQuickGetSb Of hoHttp "https://graph.microsoft.com/v1.0/users/{$userPrincipalName}/mailFolders/{$id}/childFolders" vSbResponse To iSuccess
        Get ComLastStatus Of hoHttp To iTemp1
        If ((iSuccess <> True) And (iTemp1 = 0)) Begin
            Get ComLastErrorText Of hoHttp To sTemp1
            Showln sTemp1
            Procedure_Return
        End

        Get pvComObject of hoSbResponse to vSbResponse
        Get ComLoadSb Of hoJson vSbResponse To iSuccess
        Get ComLastStatus Of hoHttp To iTemp1
        If (iTemp1 <> 200) Begin
            Get ComLastStatus Of hoHttp To iTemp1
            Showln "Status code = " iTemp1
            Get ComEmit Of hoJson To sTemp1
            Showln sTemp1
            Showln "Failed."
        End

        Move 0 To i
        Get ComSizeOfArray Of hoJson "value" To iNumFolders
        While (i < iNumFolders)
            Set ComI Of hoJson To i
            Get ComStringOf Of hoJson "value[i].displayName" To sFolderName
            Get ComStringOf Of hoJson "value[i].id" To sFolderId
            Get ComSetString Of hoSbFolderPath sParentFolderPath To iSuccess
            Get ComAppend Of hoSbFolderPath "/" To iSuccess
            Get ComAppend Of hoSbFolderPath sFolderName To iSuccess
            Get ComGetAsString Of hoSbFolderPath To sFolderPath
            Get ComAddStr Of hoFolderMap sFolderPath sFolderId To iSuccess
            Showln sFolderPath " --> " sFolderId

            // Push the folder path + id onto the idQueue.
            Send ComClear To hoSbQueueEntry
            Get ComSetNth Of hoSbQueueEntry 0 sFolderPath "|" False False To iSuccess
            Get ComSetNth Of hoSbQueueEntry 1 sFolderId "|" False False To iSuccess
            Get ComGetAsString Of hoSbQueueEntry To sTemp1
            Get ComAppend Of hoIdQueue sTemp1 To iSuccess
            Move (i + 1) To i
        Loop

    Loop

    // The hash table of mail folder paths --> ID's can be persisted to XML and saved to a file or database (or anywhere..)
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbFolderMapXml
    If (Not(IsComObjectCreated(hoSbFolderMapXml))) Begin
        Send CreateComObject of hoSbFolderMapXml
    End
    Get pvComObject of hoSbFolderMapXml to vSbFolderMapXml
    Get ComToXmlSb Of hoFolderMap vSbFolderMapXml To iSuccess
    Get ComWriteFile Of hoSbFolderMapXml "qa_data/outlook/folderMap.xml" "utf-8" False To iSuccess

    // The hash table can be restored from the serialized XML like this:
    Get Create (RefClass(cComChilkatHashtable)) To hoHt2
    If (Not(IsComObjectCreated(hoHt2))) Begin
        Send CreateComObject of hoHt2
    End
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSb2
    If (Not(IsComObjectCreated(hoSb2))) Begin
        Send CreateComObject of hoSb2
    End
    Get ComLoadFile Of hoSb2 "qa_data/outlook/folderMap.xml" "utf-8" To iSuccess
    Get pvComObject of hoSb2 to vSb2
    Get ComAddFromXmlSb Of hoHt2 vSb2 To iSuccess

    // What's the ID for the folder "/Inbox/abc/subFolderA" ?
    Get ComLookupStr Of hoHt2 "/Inbox/abc/subFolderA" To sTemp1
    Showln "id for /Inbox/abc/subFolderA = " sTemp1

    // Final output:

    // /Archive --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAG8XunwAAAA=
    // /Deleted Items --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEKAAAA
    // /Drafts --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEPAAAA
    // /Inbox --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEMAAAA
    // /Junk Email --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEiAAAA
    // /Outbox --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgELAAAA
    // /Sent Items --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAgEJAAAA
    // /Inbox/abc --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huv8AAAA=
    // /Inbox/xyz --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huwEAAAA=
    // /Inbox/abc/subFolderA --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huwAAAQ==
    // /Inbox/abc/subFolderB --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huwMAAAA=
    // /Inbox/abc/subFolderA/a --> AQMkADAwATM0MDAAMS1iNTcwLWI2NTEtMDACLTAwCgAuAAADsVyfxjDU406Ic4X7ill8xAEA5_vF7TKKdE6bGCRqXyl2PQAAAL8huwIAAAA=
    // 

    // ------------------------------------------------------------------------------------------------------
    // This example applies to: Exchange Online | Office 365 | Hotmail.com | Live.com | MSN.com | Outlook.com | Passport.com
    // 
    // The Microsoft Graph Outlook Mail API lets you read, create, and send messages and attachments, 
    // view and respond to event messages, and manage folders that are secured by Azure Active Directory 
    // in Office 365. It also provides the same functionality in Microsoft accounts specifically 
    // in these domains: Hotmail.com, Live.com, MSN.com, Outlook.com, and Passport.com.


End_Procedure

 

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