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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package clients
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"time"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/weaviate/weaviate/modules/text2vec-gpt4all/ent"
)
type client struct {
origin string
httpClient *http.Client
logger logrus.FieldLogger
}
func New(origin string, timeout time.Duration, logger logrus.FieldLogger) *client {
return &client{
origin: origin,
httpClient: &http.Client{
Timeout: timeout,
},
logger: logger,
}
}
func (c *client) Vectorize(ctx context.Context, text string) (*ent.VectorizationResult, error) {
body, err := json.Marshal(vecRequest{text})
if err != nil {
return nil, errors.Wrapf(err, "marshal body")
}
req, err := http.NewRequestWithContext(ctx, "POST", c.url("/vectorize"),
bytes.NewReader(body))
if err != nil {
return nil, errors.Wrap(err, "create POST request")
}
res, err := c.httpClient.Do(req)
if err != nil {
return nil, errors.Wrap(err, "send POST request")
}
defer res.Body.Close()
bodyBytes, err := io.ReadAll(res.Body)
if err != nil {
return nil, errors.Wrap(err, "read response body")
}
var resBody vecResponse
if err := json.Unmarshal(bodyBytes, &resBody); err != nil {
return nil, errors.Wrap(err, "unmarshal response body")
}
if res.StatusCode != 200 {
if resBody.Error != "" {
return nil, errors.Errorf("failed with status: %d error: %v", res.StatusCode, resBody.Error)
}
return nil, errors.Errorf("failed with status: %d", res.StatusCode)
}
return &ent.VectorizationResult{
Vector: resBody.Vector,
Dimensions: resBody.Dim,
Text: resBody.Text,
}, nil
}
func (c *client) url(path string) string {
return fmt.Sprintf("%s%s", c.origin, path)
}
type vecRequest struct {
Text string `json:"text"`
}
type vecResponse struct {
Text string `json:"text"`
Vector []float32 `json:"vector"`
Dim int `json:"dim"`
Error string `json:"error"`
}
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