Day: January 8, 2019

NotesHttpRequest LotusScript example

NotesHttpRequest is a new LotusScript class in Notes V10.0.1 used to make HTTP requests to web servers.

The example wraps the get(), post(), put() and deleteResource() methods in a LotusScript class.

I have also put together a small Node.js / Express.js project that can be used as test server for the NotesHttpRequest example.

Class HttpRequestWrapper

%REM
	Library 10010.http
	Created Jan 8, 2019 by Ulrich Krause/singultus
%END REM
Option Public
Option Declare

Const BASE_URL_PORT = "http://192.168.178.35:3001/api/"
Const CLASS_CUSTOMER ="customers"

Const CUSTOMER_5 = |{
					"firstname" : "Ulrich",
					"lastname" : "Krause",
					"age" : 59,
					"id" : 5
				}|

Const CUSTOMER_5_UPDATE = |{
					"firstname" : "Heinz Ulrich",
					"lastname" : "Krause",
					"age" : 59,
					"id" : 5
				}|
				
%REM
	Class HttpRequestWrapper
%END REM
Public Class HttpRequestWrapper
	
	Private m_session As NotesSession
	Private m_url As String
	Private m_class As String
	Private m_json As String
	Private m_httpRequest As NOTESHTTPREQUEST
	
	%REM
		Sub New
	%END REM
	Public Sub New()
		Set m_session = New NotesSession
		Set m_httpRequest = me.m_session.CreateHttpRequest()
		
		m_httpRequest.Preferstrings = True
		
		m_url = BASE_URL_PORT
		m_class = CLASS_CUSTOMER
	End Sub
	
	%REM
		Function getApiVersion
	%END REM
	Public sub getApiVersion()
		m_json = m_httpRequest.Get(BASE_URL_PORT)
		MsgBox m_json
	End Sub
	
	%REM
		Sub getAllObj
	%END REM
	Public Sub getAllObj()
		m_json = m_httpRequest.Get(_
		BASE_URL_PORT + CLASS_CUSTOMER)
		
		MsgBox m_json
	End Sub
	
	%REM
		Sub getObjById
	%END REM
	Public Sub getObjById(id As String)
		m_json = m_httpRequest.Get(_
		BASE_URL_PORT + CLASS_CUSTOMER + "/" + id)
		
		MsgBox m_json	
	End Sub
	
	%REM
		Sub createObj
	%END REM
	Public Sub createObj()
		m_json = m_httpRequest.Post(_
		BASE_URL_PORT + CLASS_CUSTOMER,_
		removeCRLF(CUSTOMER_5))
		
		MsgBox m_json	
	End Sub
	
	%REM
		Sub updateObj
	%END REM
	Public Sub updateObj(id As String)
		m_json = m_httpRequest.Put(_
		BASE_URL_PORT + CLASS_CUSTOMER + "/" + id,_
		removeCRLF(CUSTOMER_5_UPDATE))
		
		MsgBox m_json
	End Sub
	
	%REM
		Sub deleteObj
	%END REM
	Public Sub deleteObj(id As String)
		m_json = m_httpRequest.DeleteResource(_
		BASE_URL_PORT + CLASS_CUSTOMER + "/" + id)
		
		MsgBox m_json
	End Sub
End Class

Public Function removeCRLF(json As String) As String
	removeCRLF = Replace(Replace(json, Chr(13), ""),Chr(10),"")
End Function

Sample usage:

Use "10010.http"

Sub Click(Source As Button)
	Dim httpRequestWrapper As New HttpRequestWrapper()

	Call httpRequestWrapper.getApiVersion()
	Call httpRequestWrapper.createObj()
	Call httpRequestWrapper.deleteObj("3")
	Call httpRequestWrapper.getAllObj()
	Call httpRequestWrapper.updateObj("5")
	Call httpRequestWrapper.getObjById("5")
End Sub