VB.NET

UniPin Game List

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Demonstrates how to send a POST with the hash_hmac(sha256,partnerid+timestamp+path,secretkey) authentication. VB.NET

Dim success As Boolean = False

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim http As New Chilkat.Http

' Implements the following CURL command:

' curl --request POST 'https://dev-api.unipin.com/in-game-topup/list' \
' --header 'partnerid: 587e3675-e0ed-4e9e-9b39-099b11498fdc' \
' --header 'timestamp: 1566552295' \
' --header 'path: in-game-topup/list' \
' --header 'auth: 1d9f5e7aca9f3c14da7c957d6977447739877cebfc10fcf3682bd32da47a2bda' \
' --header 'Content-Type: application/json'

' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

Dim dt As New Chilkat.CkDateTime
dt.SetFromCurrentSystemTime()
Dim timestamp As String = dt.GetAsUnixTimeStr(False)

' Change this to your actual partner ID.
Dim partnerId As String = "587e3675-e0ed-4e9e-9b39-099b11498fdc"

http.SetRequestHeader("path","in-game-topup/list")
http.SetRequestHeader("timestamp",timestamp)
http.SetRequestHeader("partnerid",partnerId)
http.SetRequestHeader("Content-Type","application/json")

' Calculate the auth header using  hash_hmac(sha256,partnerid+timestamp+path,secretkey)
Dim crypt As New Chilkat.Crypt2
crypt.MacAlgorithm = "hmac"
crypt.HashAlgorithm = "sha256"
crypt.EncodingMode = "hexlower"

' Change this to your actual secret key..
crypt.SetMacKeyEncoded("wabc123asljdgadlgd3","us-ascii")

Dim sbMacData As New Chilkat.StringBuilder
sbMacData.Append(partnerId)
sbMacData.Append(timestamp)
sbMacData.Append("in-game-topup/list")

Dim auth As String = crypt.MacStringENC(sbMacData.GetAsString())
http.SetRequestHeader("auth",auth)

Dim resp As New Chilkat.HttpResponse
success = http.HttpNoBody("POST","https://dev-api.unipin.com/in-game-topup/list",resp)
If (success = False) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())

Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(resp.Header)
    Debug.WriteLine("Failed.")
    Exit Sub
End If


' Sample JSON response:
' (Sample code for parsing the JSON response is shown below)

' {
'   "game_list": [
'     {
'       "game_category": "MLBB_ID",
'       "game_code": "MLBBD_ID",
'       "game_name": "Mobile Legends Diamonds",
'       "icon_url": "http://dev-backoffice.unipin.com/images/icon_direct_topup_games/1565343343-icon-1548659712-icon-Mobile legend 300x300 px.png",
'       "game_status": "active",
'       "updated_at": "2019-08-09 16:35:43"
'     },
'     {
'       "game_category": "MLBB_ID",
'       "game_code": "MLBBS_ID",
'       "game_name": "Mobile Legends Starlight Member",
'       "icon_url": "http://dev-backoffice.unipin.com/images/icon_direct_topup_games/1565343258-icon-1548659712-icon-Mobile legend 300x300 px.png",
'       "game_status": "active",
'       "updated_at": "2019-08-09 16:34:18"
'     },
' ...
' ...
'   ],
'   "status": 1,
'   "reason": "Successful"
' }

' Sample code for parsing the JSON response...
' Use the following online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON

Dim game_category As String
Dim game_code As String
Dim game_name As String
Dim icon_url As String
Dim game_status As String
Dim updated_at As String

Dim status As Integer = jResp.IntOf("status")
Dim reason As String = jResp.StringOf("reason")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("game_list")
While i < count_i
    jResp.I = i
    game_category = jResp.StringOf("game_list[i].game_category")
    game_code = jResp.StringOf("game_list[i].game_code")
    game_name = jResp.StringOf("game_list[i].game_name")
    icon_url = jResp.StringOf("game_list[i].icon_url")
    game_status = jResp.StringOf("game_list[i].game_status")
    updated_at = jResp.StringOf("game_list[i].updated_at")
    i = i + 1
End While