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ModWeb.bas
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ModWeb.bas
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Attribute VB_Name = "ModWeb"
'Source: https://github.com/krijnsent/crypto_vba
'Remember to create a new API key for excel/VBA
'Based on http://www.808.dk/?code-simplewinhttprequest
Sub TestWeb()
' Create a new test suite
Dim Suite As New TestSuite
Suite.Description = "ModWeb"
' Create reporter and attach it to these specs
Dim Reporter As New ImmediateReporter
Reporter.ListenTo Suite
' Create a new test
Dim Test As TestCase
Set Test = Suite.Test("TestWebRequestURL")
'Testing error catching and replies
TestResult = WebRequestURL("myURL", "myMethod")
'{"error_nr":27,"error_txt":"invalid method for WebRequestURL","response_txt":0}
Test.IsEqual Len(TestResult), 90
Test.IsEqual TestResult, "{""error_nr"":27,""error_txt"":""invalid method for WebRequestURL (myMethod)"",""response_txt"":0}"
Set Test = Suite.Test("TestWebRequestURL GET")
TestResult = WebRequestURL("myURL", "GET")
'{"error_nr":-2147012796,"error_txt":"VBA-WinHttp.WinHttpRequest etc.
Test.IsEqual Left(TestResult, 36), "{""error_nr"":-2147012795,""error_txt"":"
TestResult = WebRequestURL("https://github.com/empty_url_not_there", "GET")
'{"error_nr":404,"error_txt":"HTTP-Not Found"}
Test.IsEqual Len(TestResult), 62
Test.IsEqual TestResult, "{""error_nr"":404,""error_txt"":""HTTP-Not Found"",""response_txt"":0}"
TestResult = WebRequestURL("https://api.kraken.com/0/public/Time", "GET")
'{"error":[],"result":{"unixtime":1511954132,"rfc1123":"Wed, 29 Nov 17 11:15:32 +0000"}}
Test.IsEqual Len(TestResult), 87
Test.IsEqual Left(TestResult, 21), "{""error"":[],""result"":"
'Test POST command
Set Test = Suite.Test("TestWebRequestURL HEAD")
Dim headerDict As New Dictionary
headerDict.Add "Content-Type", "application/x-www-form-urlencoded"
headerDict.Add "Customheader", "MyCustomHeader"
TestResult = WebRequestURL("https://httpbin.org/get", "GET", headerDict)
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/get"
Test.IsEqual JsonResult("headers").Count, 6
Test.IsEqual JsonResult("headers")("Content-Type"), "application/x-www-form-urlencoded"
Test.IsEqual JsonResult("headers")("Customheader"), "MyCustomHeader"
Set Test = Suite.Test("TestWebRequestURL POST")
'TEST POST
TestResult = WebRequestURL("https://httpbin.org/post", "POST")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/post"
Test.IsEqual JsonResult("headers").Count, 5
Set headerDict = Nothing
headerDict.Add "Content-Type", "application/x-www-form-urlencoded"
headerDict.Add "Customheader", "MyCustomHeader"
TestResult = WebRequestURL("https://httpbin.org/post", "POST", headerDict)
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/post"
Test.IsEqual JsonResult("headers").Count, 7
Test.IsEqual JsonResult("headers")("Content-Type"), "application/x-www-form-urlencoded"
Test.IsEqual JsonResult("headers")("Customheader"), "MyCustomHeader"
TestResult = WebRequestURL("https://httpbin.org/post", "POST", , "my_post_message")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/post"
Test.IsEqual JsonResult("data"), "my_post_message"
Test.IsEqual JsonResult("headers").Count, 6
TestResult = WebRequestURL("https://httpbin.org/post", "POST", headerDict, "my_post_message_2=msg")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/post"
Test.IsEqual JsonResult("form")("my_post_message_2"), "msg"
Test.IsEqual JsonResult("headers").Count, 7
Test.IsEqual JsonResult("headers")("Customheader"), "MyCustomHeader"
'DELETE -> delete action
Set Test = Suite.Test("TestWebRequestURL DELETE")
TestResult = WebRequestURL("https://httpbin.org/delete", "DELETE")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/delete"
Test.IsEqual JsonResult("headers").Count, 5
Set headerDict = Nothing
headerDict.Add "Content-Type", "application/x-www-form-urlencoded"
headerDict.Add "Customheader", "MyCustomHeader"
TestResult = WebRequestURL("https://httpbin.org/delete", "DELETE", headerDict, "my_delete_order_nr=243")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/delete"
Test.IsEqual JsonResult("form")("my_delete_order_nr"), "243"
Test.IsEqual JsonResult("headers").Count, 7
Test.IsEqual JsonResult("headers")("Customheader"), "MyCustomHeader"
'PUT -> is an update action
Set Test = Suite.Test("TestWebRequestURL PUT")
TestResult = WebRequestURL("https://httpbin.org/put", "PUT")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/put"
Test.IsEqual JsonResult("headers").Count, 5
Set headerDict = Nothing
headerDict.Add "Content-Type", "application/x-www-form-urlencoded"
headerDict.Add "Customheader", "MyCustomHeader"
TestResult = WebRequestURL("https://httpbin.org/put", "PUT", headerDict, "my_update_nr=729")
Set JsonResult = JsonConverter.ParseJson(TestResult)
Test.IsEqual JsonResult("url"), "https://httpbin.org/put"
Test.IsEqual JsonResult("form")("my_update_nr"), "729"
Test.IsEqual JsonResult("headers").Count, 7
Test.IsEqual JsonResult("headers")("Customheader"), "MyCustomHeader"
End Sub
Function WebRequestURL(strURL As String, strMethod As String, Optional objHeaders As Dictionary, Optional strPostMsg As String) As String
' Instantiate a WinHttpRequest object and open it
ErrResp = "{""error_nr"":ERR_NR,""error_txt"":""ERR_TXT"",""response_txt"":RESP_TXT}"
'DEFAULT: WinHttp.WinHttpRequest.5.1
Set objHTTP = CreateObject("WinHttp.WinHttpRequest.5.1")
'HTTP options, can be outcommented if needed
'WinHttpRequestOption_SslErrorIgnoreFlags - 13056: ignore all err, 0: accept no err
objHTTP.Option(4) = 13056
'WinHttpRequestOption_SecureProtocols - 512 = TLS 1.1, 2048 for TLS 1.2
objHTTP.Option(9) = 2048
'BACKUP (OUTCOMMENT THE 3 LINES ABOVE)
'Set objHTTP = CreateObject("MSXML2.XMLHTTP")
If strMethod = "GET" Then
On Error Resume Next
objHTTP.Open "GET", strURL, False
If Not objHeaders Is Nothing Then
For Each key In objHeaders.Keys()
'e.g. objHTTP.setRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"
objHTTP.setRequestHeader key, objHeaders(key)
Next key
Else
'No headers
End If
objHTTP.send
If Err.Number = 0 Then
If objHTTP.Status = "200" Then
objHTTP.WaitForResponse
WebRequestURL = objHTTP.responseText
If Left(WebRequestURL, 1) = "<" Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "NO JSON BUT HTML RETURNED"), "RESP_TXT", 0)
ElseIf Left(WebRequestURL, 1) <> "{" And Left(WebRequestURL, 1) <> "[" Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "NO VALID JSON RETURNED"), "RESP_TXT", 0)
End If
Else
If Left(objHTTP.responseText, 1) = "{" Or Left(objHTTP.responseText, 1) = "[" Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", objHTTP.responseText)
Else
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", 0)
End If
End If
Else
If IsEmpty(objHTTP.Status) Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", Err.Number), "ERR_TXT", Err.Description), "RESP_TXT", 0)
Else
'Unknown error, probably no internet connection, answer in JSON
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", objHTTP.responseText)
End If
End If
On Error GoTo 0
ElseIf strMethod = "POST" Or strMethod = "PUT" Or strMethod = "DELETE" Then
On Error Resume Next
objHTTP.Open strMethod, strURL, False
If Not objHeaders Is Nothing Then
For Each key In objHeaders.Keys()
'e.g. objHTTP.setRequestHeader "User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)"
objHTTP.setRequestHeader key, objHeaders(key)
Next key
Else
'No headers
End If
If strPostMsg = "" Then
objHTTP.send
Else
objHTTP.send (strPostMsg)
End If
If Err.Number = 0 Then
If objHTTP.Status = "200" Then
objHTTP.WaitForResponse
If Left(objHTTP.responseText, 1) = "{" Or Left(objHTTP.responseText, 1) = "[" Then
WebRequestURL = objHTTP.responseText
Else
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "NO VALID JSON RETURNED"), "RESP_TXT", objHTTP.responseText)
End If
Else
If Left(objHTTP.responseText, 1) = "{" Or Left(objHTTP.responseText, 1) = "[" Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", objHTTP.responseText)
Else
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", 0)
End If
End If
Else
'Unknown error, probably no internet connection, answer in JSON
If IsEmpty(objHTTP.Status) Then
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", Err.Number), "ERR_TXT", Err.Description), "RESP_TXT", 0)
Else
'Unknown error, probably no internet connection, answer in JSON
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", objHTTP.Status), "ERR_TXT", "HTTP-" & objHTTP.StatusText), "RESP_TXT", objHTTP.responseText)
End If
End If
On Error GoTo 0
Else
WebRequestURL = Replace(Replace(Replace(ErrResp, "ERR_NR", 27), "ERR_TXT", "invalid method for WebRequestURL (" & strMethod & ")"), "RESP_TXT", "0")
End If
Set objHTTP = Nothing
End Function