Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3,4,5...TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

VB.NET UWP/WinRT Examples

Web API Categories

ASN.1
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Azure Cloud Storage
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(VB.NET UWP/WinRT) Create a Temporary Public Link to a DropBox File

Get a temporary link to stream content of a file. This link will expire in four hours and afterwards you will get 410 Gone.

For more information, see https://www.dropbox.com/developers/documentation/http/documentation#files-get_temporary_link

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

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

Dim http As New Chilkat.Http
Dim success As Boolean

' Implements the following CURL command:

' curl -X POST https://api.dropboxapi.com/2/files/get_temporary_link \
'     --header "Authorization: Bearer DROPBOX_ACCESS_TOKEN" \
'     --header "Content-Type: application/json" \
'     --data "{\"path\": \"/video.mp4\"}"

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

' The following JSON is sent in the request body.

' {
'   "path": "/video.mp4"
' }

Dim json As New Chilkat.JsonObject
json.UpdateString("path","/video.mp4")

http.SetRequestHeader("Authorization","Bearer DROPBOX_ACCESS_TOKEN")
http.SetRequestHeader("Content-Type","application/json")

Dim resp As Chilkat.HttpResponse = Await http.PostJson3Async("https://api.dropboxapi.com/2/files/get_temporary_link","application/json",json)
If (http.LastMethodSuccess = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")

    Exit Sub
End If



' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "metadata": {
'     "name": "Prime_Numbers.txt",
'     "id": "id:a4ayc_80_OEAAAAAAAAAXw",
'     "client_modified": "2015-05-12T15:50:38Z",
'     "server_modified": "2015-05-12T15:50:38Z",
'     "rev": "a1c10ce0dd78",
'     "size": 7212,
'     "path_lower": "/homework/math/prime_numbers.txt",
'     "path_display": "/Homework/math/Prime_Numbers.txt",
'     "sharing_info": {
'       "read_only": true,
'       "parent_shared_folder_id": "84528192421",
'       "modified_by": "dbid:AAH4f99T0taONIb-OurWxbNQ6ywGRopQngc"
'     },
'     "is_downloadable": true,
'     "property_groups": [
'       {
'         "template_id": "ptid:1a5n2i6d3OYEAAAAAAAAAYa",
'         "fields": [
'           {
'             "name": "Security Policy",
'             "value": "Confidential"
'           }
'         ]
'       }
'     ],
'     "has_explicit_shared_members": false,
'     "content_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
'   },
'   "link": "https://dl.dropboxusercontent.com/apitl/1/YXNkZmFzZGcyMzQyMzI0NjU2NDU2NDU2"
' }

' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON



Dim template_id As String
Dim j As Integer
Dim count_j As Integer
Dim name As String
Dim value As String

Dim metadataName As String = jResp.StringOf("metadata.name")
Dim metadataId As String = jResp.StringOf("metadata.id")
Dim metadataClient_modified As String = jResp.StringOf("metadata.client_modified")
Dim metadataServer_modified As String = jResp.StringOf("metadata.server_modified")
Dim metadataRev As String = jResp.StringOf("metadata.rev")
Dim metadataSize As Integer = jResp.IntOf("metadata.size")
Dim metadataPath_lower As String = jResp.StringOf("metadata.path_lower")
Dim metadataPath_display As String = jResp.StringOf("metadata.path_display")
Dim metadataSharing_infoRead_only As Boolean = jResp.BoolOf("metadata.sharing_info.read_only")
Dim metadataSharing_infoParent_shared_folder_id As String = jResp.StringOf("metadata.sharing_info.parent_shared_folder_id")
Dim metadataSharing_infoModified_by As String = jResp.StringOf("metadata.sharing_info.modified_by")
Dim metadataIs_downloadable As Boolean = jResp.BoolOf("metadata.is_downloadable")
Dim metadataHas_explicit_shared_members As Boolean = jResp.BoolOf("metadata.has_explicit_shared_members")
Dim metadataContent_hash As String = jResp.StringOf("metadata.content_hash")
Dim link As String = jResp.StringOf("link")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("metadata.property_groups")
While i < count_i
    jResp.I = i
    template_id = jResp.StringOf("metadata.property_groups[i].template_id")
    j = 0
    count_j = jResp.SizeOfArray("metadata.property_groups[i].fields")
    While j < count_j
        jResp.J = j
        name = jResp.StringOf("metadata.property_groups[i].fields[j].name")
        value = jResp.StringOf("metadata.property_groups[i].fields[j].value")
        j = j + 1
    End While
    i = i + 1
End While

 

© 2000-2022 Chilkat Software, Inc. All Rights Reserved.