Visual Basic 6.0

HTTP Examples for Visual Basic 6.0

• Getting Started

• HTTP Tutorial -- Common HTTP Requests Explained
• HTTP GET - Download HTML or any Text Content to a String
• HTTPS GET using SSL/TLS
• HTTP Download any Type of File (binary or text)
• Demonstrates the Http.QuickRequestParams Method
• Initialize an HTTP Request from a URL
• Parse a URL into its Component Parts
• Debugging HTTP
• HTTP HEAD Request

• JSON Requests

• POST application/json HTTPS Request
• HTTP POST JSON
• HTTP POST JSON (application/json)
• Creating an application/json HTTP POST Request
• HTTP POST JSON and Parse JSON Response
• HttpPostJson2 Example
• HTTP PUT JSON

• Form, XML and Other Request Bodies

• POST application/x-www-form-urlencoded Two Ways
• HTTP POST with some Params in URL and others in application/x-www-form-urlencoded Body
• HTTPS PUT application/x-www-form-urlencoded
• Duplicating a Simple HTML Form Submission (POST)
• Send HTTPS POST with XML Body
• HTTP POST with Binary Data in Request Body
• HTTP DELETE with Body
• Send XMLHttpRequest and Get Response
• Send XMLHttpRequest using PUT, GET, DELETE, or any HTTP Request Method

• URL Encoding and Character Sets

• HTTPS GET URL with URL Encoded Query Params
• HTTP GET with utf-8 URL Encoded Query Params
• HTTP GET with Non-USASCII Query Params
• URL Encoding Charset in POST Query Params
• Send HTTP POST using non-UTF8 such as Windows-1250

• Headers and Cookies

• Add Custom Header to HTTP GET
• Adding Cookies to an HTTP Request
• Caching cookies in-memory.
• Persist Cookies to XML Files and Auto Re-Send
• Demonstrates how to Get Cookies Sent by the HTTP Server

• Downloads

• HTTP Download with Progress Event Callbacks
• HTTP Download in Parallel with Simultaneous Range Requests
• Get the Last-Modified Date Before HTTP Download
• Get Size of File on Web Server
• How to Avoid Large Strings in HTTP Responses
• HTTP Download from URL with IP Address and Port

• Multipart Uploads and Responses

• HTTP multipart/form-data Upload
• Building a multipart/form-data Request for HTTP Upload
• HTTPS multipart/form-data POST
• HTTPS Upload File to Web Server
• Add Data to multipart/form-data Request
• HTTP multipart-mixed POST (for a UPS Package Level Detail PLD Request)
• Parse Multipart Binary Http Response
• How to Access Parts of a multipart/related HTTP Response

• Authentication: Basic, Digest, Windows and OAuth

• HTTP Form Authentication
• HTTP Digest-MD5 Authentication Testing with httpbin.org
• HTTPS Windows Integrated Authentication
• HTTPS GET Request with Authorization Bearer Header
• HTTP GET with Custom Header and OAuth2 Bearer Token
• Get XOAUTH2 Access Token from Google OAuth 2.0 Authorization Server
• Auth0 Server-to-Server Access Token (Client Credentials flow)
• Implementing DPoP with OAuth2 Client Credentials
• Twitter OAuth -- Tweet to Your Own Account

• TLS, Certificates and Client Authentication

• Get the Server Certificate, Certificate Chain, and Root CA Certificate
• HTTP - Verify Server is a Trusted Root CA
• HTTP Public Key Pinning
• Get Web Server's SPKI Fingerprint
• Require SSL Server Certificate Domain Match
• OCSP Check Domain's Server Certificate Revocation Status
• HTTP TLS Mutual Authentication (Client-Side Certificate)
• Use Installed Cert on Windows for TLS Client Authentication
• Use HTTPS Client Certificate from .cer and .key Files
• HTTPS Mutual Authentication using Smartcard or Token
• HTTPS Client Certificate using Smartcard or Token

• Proxies

• Using an HTTP Proxy for HTTP POST's, GET's, etc.
• HTTPS Requests over Squid Proxy Direct TLS Connection
• HTTP/HTTPS using SOCKS5 Proxy
• HTTP/HTTPS using SOCKS4 Proxy

• SOAP and Web Services

• Simple SOAP Request
• HTTP SOAP 1.1 Request and Response using POST
• HTTP SOAP 1.2 Request and Response using POST
• Send SOAP 1.2 Request to Web Service Requiring Authentication
• Duplicate TLS 1.2 SOAP Request that uses .NET HttpWebRequest
• SOAP with MTOM XOP Attachment
• SOAP with MTOM XOP 8bit (binary) Attachment
• Another SOAP with MTOM XOP Attachment Example
• WebDAV PROPFIND
• HTTP XMLRPC

• Async Requests and Redirects

• Getting the HTTP Response after an Asynchronous HTTP Request Completes
• Cancel HTTP Get Async Task if not Completed after a Max Time
• Manually Follow HTTP Redirects

• RFC3161 Timestamps

• RFC3161 Timestamp Client - Fetch from Timestamp Authority (TSA) and Verify
• Extract TSTInfo from RFC3161 Timestamp Reply

• Real-World Examples

• Fetch ISBN XML from isbndb.com and Parse
• Peoplevox WMS Authentication
• Peoplevox WMS Export Data
• Find My External Public IP Address