Visual Basic 6.0

Example: Http.HttpJson method - Send a POST with JSON Body

See more HTTP Examples

Demonstrates how to call the HttpJson method, which sends an HTTP POST with a JSON body. This 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

Visual Basic 6.0

Dim success As Long
success = 0

Dim http As New ChilkatHttp
success = 0

Dim json As New ChilkatJsonObject

' Build the following JSON:  {"greeting":"Hello World"}
success = json.UpdateString("greeting","Hello World")

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

' Send a POST with the JSON in the HTTP request body.
Dim resp As New ChilkatHttpResponse
success = http.HttpJson("POST",url,json,"application/json",resp)
If (success = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Debug.Print "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.
Debug.Print http.LastHeader
Debug.Print 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"}