B4X Requires Chilkat v11.0.0+

Example: Http.HttpSb method

Shows how to use the HttpSb method to send an HTTP POST request with a StringBuilder as the request body. The example sends the following request:

POST /echo_request_body.asp HTTP/1.1
Host: chilkatsoft.com
Accept: */*
Accept-Encoding: gzip
Content-Type: application/json
Content-Length: 26

{"greeting":"Hello World"}

Also see: Chilkat Http Default and Auto-Filled Headers

B4X

Dim success As Boolean = False

Dim http As ChilkatHttp
http.Initialize("http")
success = False

Dim sb As ChilkatStringBuilder
sb.Initialize
sb.Append("{" & Chr(34) & "greeting" & Chr(34) & ":" & Chr(34) & "Hello World" & Chr(34) & "}")

'  This URL echoes the contents of the request body, letting us view it.
Dim url As String = "https://chilkatsoft.com/echo_request_body.asp"

'  Send a POST with the contents of the StringBuilder in the HTTP request body.
Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpSb("POST", url, sb, "utf-8", "application/json", resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Log("Response Status Code: " & resp.StatusCode)

'  Examine the request we sent.
'  The LastHeader property stores the HTTP request header of the most recent request sent,
'  and in this instance, the response body mirrors the request body.
Log(http.LastHeader)
Log(resp.BodyStr)

'  Output:

'  POST /echo_request_body.asp HTTP/1.1
'  Host: chilkatsoft.com
'  Accept: */*
'  Accept-Encoding: gzip
'  Content-Type: application/json
'  Content-Length: 26
'  
'  {"greeting":"Hello World"}