HttpResponse VB.NET Reference Documentation

HttpResponse

Current Version: 9.5.0.97

Represents a complete HTTP response.

Object Creation

Dim obj As New Chilkat.HttpResponse()

Properties

Body
Body As Byte() (ReadOnly)

The response body returned as a byte array.

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BodyQP
BodyQP As String (ReadOnly)

The same as the Body property, but returned as a quoted-printable encoded string.

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BodyStr
BodyStr As String (ReadOnly)

The response body returned as a string.

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Charset
Charset As String (ReadOnly)

The response charset, such as "iso-8859-1", if applicable. Obviously, responses for GIF and JPG files will not have a charset.

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ContentLength
ContentLength As UInteger (ReadOnly)

The content length of the response, in bytes.

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DateStr
DateStr As String (ReadOnly)

Returns the content of the Date response header field in RFC822 date/time string format.

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DebugLogFilePath
DebugLogFilePath As String

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

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Domain
Domain As String (ReadOnly)

The domain of the HTTP server that created this response.

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FinalRedirectUrl
FinalRedirectUrl As String (ReadOnly)
Introduced in version 9.5.0.49

Returns the redirect URL for 301/302 responses.

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FullMime
FullMime As String (ReadOnly)

Returns the full MIME (header + body) of the HTTP response.

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Header
Header As String (ReadOnly)

The full text of the response header.

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LastErrorHtml
LastErrorHtml As String (ReadOnly)

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorText
LastErrorText As String (ReadOnly)

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastErrorXml
LastErrorXml As String (ReadOnly)

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

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LastMethodSuccess
LastMethodSuccess As Boolean

Indicate whether the last method call succeeded or failed. A value of True indicates success, a value of False indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = True and failure = False.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to True. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

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NumCookies
NumCookies As Integer (ReadOnly)

The number of cookies included in the response.

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NumHeaderFields
NumHeaderFields As Integer (ReadOnly)

The number of response header fields.

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StatusCode
StatusCode As Integer (ReadOnly)

The status code (as an integer) from the first line of an HTTP response. If the StatusLine = "HTTP/1.0 200 OK", the response status code returned is 200.

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StatusLine
StatusLine As String (ReadOnly)

The first line of an HTTP response, such as "HTTP/1.0 200 OK".

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StatusText
StatusText As String (ReadOnly)
Introduced in version 9.5.0.49

The text that follows the status code in the 1st line of the HTTP response. For example, i the first line of an HTTP response is "HTTP/1.0 200 OK", then this property contains "OK".

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UncommonOptions
UncommonOptions As String
Introduced in version 9.5.0.89

This is a catch-all property to be used for uncommon needs. Can be set to a list of the following comma separated keywords:

  • "TakeResponseBody" - Introduced in v9.5.0.89. The GetBody* methods will transfer the body to the target object instead of copying the contents. This can be useful if the response body is extremely large because it will reduce the overall memory requirement.

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VerboseLogging
VerboseLogging As Boolean

If set to True, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is False. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
Version As String (ReadOnly)

Version of the component/library, such as "9.5.0.94"

More Information and Examples
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Methods

GetBodyBd
Function GetBodyBd(ByVal binData As BinData) As Boolean
Introduced in version 9.5.0.64

Copies the response body to a BinData object.

Returns True for success, False for failure.

More Information and Examples
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GetBodyJarr
Function GetBodyJarr(ByVal jarr As JsonArray) As Boolean
Introduced in version 9.5.0.89

Loads the JSON array response body into a JsonArray This method should only be called when it is known that the response body contains a JSON array (beginning with a square bracket '[' and ending with a square bracket ']')

Returns True for success, False for failure.

More Information and Examples
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GetBodyJson
Function GetBodyJson(ByVal json As JsonObject) As Boolean
Introduced in version 9.5.0.89

Loads the JSON response body into a JsonObject. This method should only be called when it is known that the response body contains JSON (beginning with a curly brace '{' and ending with a curly brace '}')

Returns True for success, False for failure.

More Information and Examples
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GetBodySb
Function GetBodySb(ByVal sb As StringBuilder) As Boolean
Introduced in version 9.5.0.64

Copies the response body to a Chilkat StringBuilder object.

Returns True for success, False for failure.

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GetBodyXml
Function GetBodyXml(ByVal xml As Xml) As Boolean
Introduced in version 9.5.0.89

Loads the XML response body into an XML object. This method should only be called when it is known that the response body contains XML.

Returns True for success, False for failure.

More Information and Examples
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GetCookieDomain
Function GetCookieDomain(ByVal index As Integer) As String

Returns the domain of the Nth cookie in the response. Indexing begins at 0. The number of response cookies is specified in the NumCookies property.

Returns Nothing on failure

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GetCookieExpiresStr
Function GetCookieExpiresStr(ByVal index As Integer) As String

Returns the expiration date/time of the Nth cookie in the response. Indexing begins at 0. The number of response cookies is specified in the NumCookies property.

Returns Nothing on failure

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GetCookieName
Function GetCookieName(ByVal index As Integer) As String

Returns the name of the Nth cookie returned in the response. Indexing begins at 0. The number of response cookies is specified in the NumCookies property.

Returns Nothing on failure

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GetCookiePath
Function GetCookiePath(ByVal index As Integer) As String

Returns the path of the Nth cookie returned in the response. Indexing begins at 0. The number of response cookies is specified in the NumCookies property.

Returns Nothing on failure

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GetCookieValue
Function GetCookieValue(ByVal index As Integer) As String

Returns the value of the Nth cookie returned in the response. Indexing begins at 0. The number of response cookies is specified in the NumCookies property.

Returns Nothing on failure

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GetHeaderField
Function GetHeaderField(ByVal fieldName As String) As String

Returns the value of a response header field accessed by field name.

Returns Nothing on failure

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GetHeaderFieldAttr
Function GetHeaderFieldAttr(ByVal fieldName As String, ByVal attrName As String) As String

Returns a response header field attribute. As an example, the response charset is simply the GetHeaderFieldAttr("content-type","charset")

Returns Nothing on failure

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GetHeaderName
Function GetHeaderName(ByVal index As Integer) As String

Gets the name of the Nth response header field. Indexing begins at 0. The number of response headers is specified by the NumHeaderFields property.

Returns Nothing on failure

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GetHeaderValue
Function GetHeaderValue(ByVal index As Integer) As String

Gets the value of the Nth response header field. Indexing begins at 0. The number of response headers is specified by the NumHeaderFields property.

Returns Nothing on failure

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LoadTaskResult
Function LoadTaskResult(ByVal task As Task) As Boolean
Introduced in version 9.5.0.52

Loads the HTTP response from a completed asynchronous task. A failed return value indicates that no HTTP response was received in the HTTP asynchronous method call (i.e. the asynchronous HTTP request failed in such a way that no response was received).

Returns True for success, False for failure.

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SaveBodyBinary
Function SaveBodyBinary(ByVal path As String) As Boolean

Saves the body of the HTTP response to a file.

Returns True for success, False for failure.

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SaveBodyText
Function SaveBodyText(ByVal bCrlf As Boolean, ByVal path As String) As Boolean

Saves the HTTP response body to a file. This method provides control over CRLF vs bare-LF line-endings. If bCrlf is True, then line endings are automatically converted to CRLF if necessary. If bCrlf is False, then line-endings are automatically converted to bare-LF's (Unix style) if necessary.

To save the HTTP response body exactly as-is (with no line-ending manipulation), then call SaveBodyBinary.

Returns True for success, False for failure.

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UrlEncParamValue
Function UrlEncParamValue(ByVal encodedParamString As String, ByVal paramName As String) As String

Convenience method for parsing a param's value out of a URL-encoded param string. For example, if a caller passes the following string in encodedParamString:

oauth_token=ABC&oauth_token_secret=123&oauth_callback_confirmed=true
and "oauth_token_secret" in paramName, then the return value would be "123".

Returns Nothing on failure

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