VB.NET

OpenAI (ChatGPT) Simple Request

See more OpenAI ChatGPT Examples

Demonstrate a simple ChatGPT request with authentication using your OPENAI_API_KEY. 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 https://api.openai.com/v1/chat/completions \
'   -H "Content-Type: application/json" \
'   -H "Authorization: Bearer $OPENAI_API_KEY" \
'   -d '{
'      "model": "gpt-3.5-turbo",
'      "messages": [{"role": "user", "content": "Say this is a test!"}],
'      "temperature": 0.7
'    }'

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

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

' The following JSON is sent in the request body.

' {
'   "model": "gpt-3.5-turbo",
'   "messages": [
'     {
'       "role": "user",
'       "content": "Say this is a test!"
'     }
'   ],
'   "temperature": 0.7
' }

Dim json As New Chilkat.JsonObject
json.UpdateString("model","gpt-3.5-turbo")
json.UpdateString("messages[0].role","user")
json.UpdateString("messages[0].content","Say this is a test!")
json.UpdateNumber("temperature","0.7")

' Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
' This is NOT a real key.  Change the "sk-vi...." to your own key.
http.AuthToken = "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"

Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://api.openai.com/v1/chat/completions",json,"application/json",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)

' {
'   "id": "chatcmpl-abc123",
'   "object": "chat.completion",
'   "created": 1677858242,
'   "model": "gpt-3.5-turbo-0301",
'   "usage": {
'     "prompt_tokens": 13,
'     "completion_tokens": 7,
'     "total_tokens": 20
'   },
'   "choices": [
'     {
'       "message": {
'         "role": "assistant",
'         "content": "\n\nThis is a test!"
'       },
'       "finish_reason": "stop",
'       "index": 0
'     }
'   ]
' }

' 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 Role As String
Dim Content As String
Dim finish_reason As String
Dim index As Integer

Dim id As String = jResp.StringOf("id")
Dim v_object As String = jResp.StringOf("object")
Dim created As Integer = jResp.IntOf("created")
Dim model As String = jResp.StringOf("model")
Dim Prompt_tokens As Integer = jResp.IntOf("usage.prompt_tokens")
Dim Completion_tokens As Integer = jResp.IntOf("usage.completion_tokens")
Dim Total_tokens As Integer = jResp.IntOf("usage.total_tokens")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("choices")
While i < count_i
    jResp.I = i
    Role = jResp.StringOf("choices[i].message.role")
    Content = jResp.StringOf("choices[i].message.content")
    finish_reason = jResp.StringOf("choices[i].finish_reason")
    index = jResp.IntOf("choices[i].index")
    i = i + 1
End While