Xbase++

OpenAI (ChatGPT) Create Chat Completion

See more OpenAI ChatGPT Examples

Shows how to create a model response for a given chat conversation. Xbase++

LOCAL nSuccess
LOCAL oHttp
LOCAL oJson
LOCAL oResp
LOCAL oSbResponseBody
LOCAL oJResp
LOCAL nRespStatusCode
LOCAL nIndex
LOCAL cRole
LOCAL cContent
LOCAL cFinish_reason
LOCAL cId
LOCAL cV_object
LOCAL nCreated
LOCAL nPrompt_tokens
LOCAL nCompletion_tokens
LOCAL nTotal_tokens
LOCAL i
LOCAL nCount_i

nSuccess := 0

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

oHttp := CreateObject("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": "Hello!"}]
//    }'

//  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": "Hello!"
//      }
//    ]
//  }

oJson := CreateObject("Chilkat.JsonObject")
oJson:UpdateString("model", "gpt-3.5-turbo")
oJson:UpdateString("messages[0].role", "user")
oJson:UpdateString("messages[0].content", "Hello!")

//  Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
//  This is NOT a real key.  Change the "sk-vi...." to your own key.
oHttp:AuthToken := "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"
oHttp:SetRequestHeader("Content-Type", "application/json")

oResp := CreateObject("Chilkat.HttpResponse")
nSuccess := oHttp:HttpJson("POST", "https://api.openai.com/v1/chat/completions", oJson, "application/json", oResp)
IF (nSuccess == 0)
    ? oHttp:LastErrorText
    oHttp:destroy()
    oJson:destroy()
    oResp:destroy()
    RETURN
ENDIF

oSbResponseBody := CreateObject("Chilkat.StringBuilder")
oResp:GetBodySb(oSbResponseBody)

oJResp := CreateObject("Chilkat.JsonObject")
oJResp:LoadSb(oSbResponseBody)
oJResp:EmitCompact := 0

? "Response Body:"
? oJResp:Emit()

nRespStatusCode := oResp:StatusCode
? "Response Status Code = " + Str(nRespStatusCode)
IF (nRespStatusCode >= 400)
    ? "Response Header:"
    ? oResp:Header
    ? "Failed."
    oHttp:destroy()
    oJson:destroy()
    oResp:destroy()
    oSbResponseBody:destroy()
    oJResp:destroy()
    RETURN
ENDIF

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

//  {
//    "id": "chatcmpl-123",
//    "object": "chat.completion",
//    "created": 1677652288,
//    "choices": [
//      {
//        "index": 0,
//        "message": {
//          "role": "assistant",
//          "content": "\n\nHello there, how may I assist you today?"
//        },
//        "finish_reason": "stop"
//      }
//    ],
//    "usage": {
//      "prompt_tokens": 9,
//      "completion_tokens": 12,
//      "total_tokens": 21
//    }
//  }

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

cId := oJResp:StringOf("id")
cV_object := oJResp:StringOf("object")
nCreated := oJResp:IntOf("created")
nPrompt_tokens := oJResp:IntOf("usage.prompt_tokens")
nCompletion_tokens := oJResp:IntOf("usage.completion_tokens")
nTotal_tokens := oJResp:IntOf("usage.total_tokens")
i := 0
nCount_i := oJResp:SizeOfArray("choices")
DO WHILE i < nCount_i
    oJResp:I := i
    nIndex := oJResp:IntOf("choices[i].index")
    cRole := oJResp:StringOf("choices[i].message.role")
    cContent := oJResp:StringOf("choices[i].message.content")
    cFinish_reason := oJResp:StringOf("choices[i].finish_reason")
    i := i + 1
ENDDO

oHttp:destroy()
oJson:destroy()
oResp:destroy()
oSbResponseBody:destroy()
oJResp:destroy()