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add chatcompletion stream delta refusal and logprobs #882

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merged 6 commits into from
Oct 29, 2024
Merged

add chatcompletion stream delta refusal and logprobs #882

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520c829
add chatcompletion stream refusal and logprobs
Oct 17, 2024
571dc9c
fix slice to struct
Oct 22, 2024
ac3eaf3
add integration test
Oct 22, 2024
c9a1814
fix lint
Oct 22, 2024
52cdd83
fix lint
Oct 22, 2024
e036684
fix: the object should be pointer
Oct 29, 2024
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28 changes: 24 additions & 4 deletions chat_stream.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,13 +10,33 @@ type ChatCompletionStreamChoiceDelta struct {
Role string `json:"role,omitempty"`
FunctionCall *FunctionCall `json:"function_call,omitempty"`
ToolCalls []ToolCall `json:"tool_calls,omitempty"`
Refusal string `json:"refusal,omitempty"`
}

type ChatCompletionStreamChoiceLogprobs struct {
Content []ChatCompletionTokenLogprob `json:"content,omitempty"`
Refusal []ChatCompletionTokenLogprob `json:"refusal,omitempty"`
}

type ChatCompletionTokenLogprob struct {
Token string `json:"token"`
Bytes []int64 `json:"bytes,omitempty"`
Logprob float64 `json:"logprob,omitempty"`
TopLogprobs []ChatCompletionTokenLogprobTopLogprob `json:"top_logprobs"`
}

type ChatCompletionTokenLogprobTopLogprob struct {
Token string `json:"token"`
Bytes []int64 `json:"bytes"`
Logprob float64 `json:"logprob"`
}

type ChatCompletionStreamChoice struct {
Index int `json:"index"`
Delta ChatCompletionStreamChoiceDelta `json:"delta"`
FinishReason FinishReason `json:"finish_reason"`
ContentFilterResults ContentFilterResults `json:"content_filter_results,omitempty"`
Index int `json:"index"`
Delta ChatCompletionStreamChoiceDelta `json:"delta"`
Logprobs *ChatCompletionStreamChoiceLogprobs `json:"logprobs,omitempty"`
FinishReason FinishReason `json:"finish_reason"`
ContentFilterResults ContentFilterResults `json:"content_filter_results,omitempty"`
}

type PromptFilterResult struct {
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265 changes: 265 additions & 0 deletions chat_stream_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -358,6 +358,271 @@ func TestCreateChatCompletionStreamRateLimitError(t *testing.T) {
t.Logf("%+v\n", apiErr)
}

func TestCreateChatCompletionStreamWithRefusal(t *testing.T) {
client, server, teardown := setupOpenAITestServer()
defer teardown()
server.RegisterHandler("/v1/chat/completions", func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set("Content-Type", "text/event-stream")

dataBytes := []byte{}

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"1","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"role":"assistant","content":"","refusal":null},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"2","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"refusal":"Hello"},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"3","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"refusal":" World"},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"4","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{},"finish_reason":"stop"}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

dataBytes = append(dataBytes, []byte("data: [DONE]\n\n")...)

_, err := w.Write(dataBytes)
checks.NoError(t, err, "Write error")
})

stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
MaxTokens: 2000,
Model: openai.GPT4oMini20240718,
Messages: []openai.ChatCompletionMessage{
{
Role: openai.ChatMessageRoleUser,
Content: "Hello!",
},
},
Stream: true,
})
checks.NoError(t, err, "CreateCompletionStream returned error")
defer stream.Close()

expectedResponses := []openai.ChatCompletionStreamResponse{
{
ID: "1",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{},
},
},
},
{
ID: "2",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{
Refusal: "Hello",
},
},
},
},
{
ID: "3",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{
Refusal: " World",
},
},
},
},
{
ID: "4",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
FinishReason: "stop",
},
},
},
}

for ix, expectedResponse := range expectedResponses {
b, _ := json.Marshal(expectedResponse)
t.Logf("%d: %s", ix, string(b))

receivedResponse, streamErr := stream.Recv()
checks.NoError(t, streamErr, "stream.Recv() failed")
if !compareChatResponses(expectedResponse, receivedResponse) {
t.Errorf("Stream response %v is %v, expected %v", ix, receivedResponse, expectedResponse)
}
}

_, streamErr := stream.Recv()
if !errors.Is(streamErr, io.EOF) {
t.Errorf("stream.Recv() did not return EOF in the end: %v", streamErr)
}
}

func TestCreateChatCompletionStreamWithLogprobs(t *testing.T) {
client, server, teardown := setupOpenAITestServer()
defer teardown()
server.RegisterHandler("/v1/chat/completions", func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set("Content-Type", "text/event-stream")

// Send test responses
dataBytes := []byte{}

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"1","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"role":"assistant","content":"","refusal":null},"logprobs":{"content":[],"refusal":null},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"2","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"content":"Hello"},"logprobs":{"content":[{"token":"Hello","logprob":-0.000020458236,"bytes":[72,101,108,108,111],"top_logprobs":[]}],"refusal":null},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"3","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{"content":" World"},"logprobs":{"content":[{"token":" World","logprob":-0.00055303273,"bytes":[32,87,111,114,108,100],"top_logprobs":[]}],"refusal":null},"finish_reason":null}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

//nolint:lll
dataBytes = append(dataBytes, []byte(`data: {"id":"4","object":"chat.completion.chunk","created":1729585728,"model":"gpt-4o-mini-2024-07-18","system_fingerprint":"fp_d9767fc5b9","choices":[{"index":0,"delta":{},"logprobs":null,"finish_reason":"stop"}]}`)...)
dataBytes = append(dataBytes, []byte("\n\n")...)

dataBytes = append(dataBytes, []byte("data: [DONE]\n\n")...)

_, err := w.Write(dataBytes)
checks.NoError(t, err, "Write error")
})

stream, err := client.CreateChatCompletionStream(context.Background(), openai.ChatCompletionRequest{
MaxTokens: 2000,
Model: openai.GPT3Dot5Turbo,
Messages: []openai.ChatCompletionMessage{
{
Role: openai.ChatMessageRoleUser,
Content: "Hello!",
},
},
Stream: true,
})
checks.NoError(t, err, "CreateCompletionStream returned error")
defer stream.Close()

expectedResponses := []openai.ChatCompletionStreamResponse{
{
ID: "1",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{},
Logprobs: &openai.ChatCompletionStreamChoiceLogprobs{
Content: []openai.ChatCompletionTokenLogprob{},
},
},
},
},
{
ID: "2",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{
Content: "Hello",
},
Logprobs: &openai.ChatCompletionStreamChoiceLogprobs{
Content: []openai.ChatCompletionTokenLogprob{
{
Token: "Hello",
Logprob: -0.000020458236,
Bytes: []int64{72, 101, 108, 108, 111},
TopLogprobs: []openai.ChatCompletionTokenLogprobTopLogprob{},
},
},
},
},
},
},
{
ID: "3",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{
Content: " World",
},
Logprobs: &openai.ChatCompletionStreamChoiceLogprobs{
Content: []openai.ChatCompletionTokenLogprob{
{
Token: " World",
Logprob: -0.00055303273,
Bytes: []int64{32, 87, 111, 114, 108, 100},
TopLogprobs: []openai.ChatCompletionTokenLogprobTopLogprob{},
},
},
},
},
},
},
{
ID: "4",
Object: "chat.completion.chunk",
Created: 1729585728,
Model: openai.GPT4oMini20240718,
SystemFingerprint: "fp_d9767fc5b9",
Choices: []openai.ChatCompletionStreamChoice{
{
Index: 0,
Delta: openai.ChatCompletionStreamChoiceDelta{},
FinishReason: "stop",
},
},
},
}

for ix, expectedResponse := range expectedResponses {
b, _ := json.Marshal(expectedResponse)
t.Logf("%d: %s", ix, string(b))

receivedResponse, streamErr := stream.Recv()
checks.NoError(t, streamErr, "stream.Recv() failed")
if !compareChatResponses(expectedResponse, receivedResponse) {
t.Errorf("Stream response %v is %v, expected %v", ix, receivedResponse, expectedResponse)
}
}

_, streamErr := stream.Recv()
if !errors.Is(streamErr, io.EOF) {
t.Errorf("stream.Recv() did not return EOF in the end: %v", streamErr)
}
}

func TestAzureCreateChatCompletionStreamRateLimitError(t *testing.T) {
wantCode := "429"
wantMessage := "Requests to the Creates a completion for the chat message Operation under Azure OpenAI API " +
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