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50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package openai
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import (
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"context"
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"errors"
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)
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var (
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ErrTooManyEmptyStreamMessages = errors.New("stream has sent too many empty messages")
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)
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type CompletionStream struct {
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*streamReader[CompletionResponse]
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}
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// CreateCompletionStream — API call to create a completion w/ streaming
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// support. It sets whether to stream back partial progress. If set, tokens will be
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// sent as data-only server-sent events as they become available, with the
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// stream terminated by a data: [DONE] message.
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func (c *Client) CreateCompletionStream(
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ctx context.Context,
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request CompletionRequest,
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) (stream *CompletionStream, err error) {
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urlSuffix := "/completions"
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if !checkEndpointSupportsModel(urlSuffix, request.Model) {
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err = ErrCompletionUnsupportedModel
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return
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}
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if !checkPromptType(request.Prompt) {
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err = ErrCompletionRequestPromptTypeNotSupported
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return
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}
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request.Stream = true
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req, err := c.newRequest(ctx, "POST", c.fullURL(urlSuffix, request.Model), withBody(request))
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if err != nil {
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return nil, err
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}
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resp, err := sendRequestStream[CompletionResponse](c, req)
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if err != nil {
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return
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}
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stream = &CompletionStream{
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streamReader: resp,
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}
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return
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}
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