B4X

Read the REST Response Header and Status Code

Demonstrates Rest.ReadResponseHeader, which reads the HTTP response status line and header fields after a staged send. The returned integer is the HTTP status code, or -1 if no response was received.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

Chilkat B4X Downloads

Download Chilkat for B4X

B4X

Dim success As Boolean = False

Dim rest As ChilkatRest
rest.Initialize("rest")
Dim bTls As Boolean = True
Dim bAutoReconnect As Boolean = True
success = rest.Connect("example.com", 443, bTls, bAutoReconnect)
If success = False Then
    Log(rest.LastErrorText)
    Return
End If


success = rest.SendReqNoBody("GET", "/api/items/123")
If success = False Then
    Log(rest.LastErrorText)
    Return
End If


'  Read the HTTP response status line and header fields.  The returned integer is the HTTP status
'  code (such as 200, 404, or 500), or -1 if no response was received.
Dim statusCode As Int = rest.ReadResponseHeader
If statusCode < 0 Then
    Log(rest.LastErrorText)
    Return
End If

Log("Response status code: " & statusCode)