This commit is contained in:
Erik Winter 2025-02-21 10:53:24 +01:00
commit 234288da9c
7 changed files with 1831 additions and 0 deletions

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doc/api.md Normal file

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go.mod Normal file
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module go-mod.ewintr.nl/henk
go 1.23.3

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go.sum Normal file
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llm/llm.go Normal file
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package llm

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llm/memory.go Normal file
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package llm
// Memory is a mock implementation of EmbedderCompleter
type Memory struct {
EmbedReturns [][]float32
EmbedError error
CompleteReturns []string
CompleteError error
}
func (m *Memory) Embed(input string) ([]float32, error) {
if m.EmbedError != nil {
return nil, m.EmbedError
}
res := m.EmbedReturns[0]
if len(m.EmbedReturns) > 1 {
m.EmbedReturns = m.EmbedReturns[1:]
}
return res, nil
}
func (m *Memory) Complete(input string) (string, error) {
if m.CompleteError != nil {
return "", m.CompleteError
}
res := m.CompleteReturns[0]
if len(m.CompleteReturns) > 1 {
m.CompleteReturns = m.CompleteReturns[1:]
}
return res, nil
}

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llm/ollama.go Normal file
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package llm
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"time"
)
type CompletionRequest struct {
System string `json:"system"`
Prompt string `json:"prompt"`
Model string `json:"model"`
Streaming bool `json:"stream"`
}
type CompletionResponse struct {
Response string `json:"response"`
}
type Ollama struct {
baseURL string
embedModel string
completeModel string
client *http.Client
}
func NewOllama(baseURL, embedModel, completeModel string) *Ollama {
return &Ollama{
baseURL: baseURL,
embedModel: embedModel,
completeModel: completeModel,
client: &http.Client{Timeout: 600 * time.Second},
}
}
func (o *Ollama) Complete(system, prompt string) (string, error) {
url := fmt.Sprintf("%s/api/generate", o.baseURL)
requestBody := CompletionRequest{
Prompt: prompt,
Model: o.completeModel,
System: system,
}
jsonData, err := json.Marshal(requestBody)
if err != nil {
return "", fmt.Errorf("could not marshal request to json: %v", err)
}
resp, err := http.Post(url, "application/json", bytes.NewBuffer(jsonData))
if err != nil {
return "", fmt.Errorf("could not post request to ollama: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
return "", fmt.Errorf("received non-successful status code: %d", resp.StatusCode)
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return "", fmt.Errorf("could not read response: %v", err)
}
var completionResponse CompletionResponse
err = json.Unmarshal(body, &completionResponse)
if err != nil {
return "", fmt.Errorf("could not unmarshal response: %v ", err)
}
return completionResponse.Response, nil
}
func (o *Ollama) Embed(inputText string) ([]float32, error) {
reqBody := map[string]interface{}{
"model": "text-embedding-3-small",
"input": inputText,
}
jsonBody, err := json.Marshal(reqBody)
if err != nil {
return nil, fmt.Errorf("error marshaling request: %w", err)
}
req, err := http.NewRequestWithContext(
context.Background(),
"POST",
o.baseURL+"/v1/embeddings",
strings.NewReader(string(jsonBody)),
)
if err != nil {
return nil, fmt.Errorf("error creating request: %w", err)
}
req.Header.Set("Content-Type", "application/json")
// req.Header.Set("Authorization", "Bearer "+o.apiKey)
resp, err := o.client.Do(req)
if err != nil {
return nil, fmt.Errorf("error making request: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
body, _ := io.ReadAll(resp.Body)
return nil, fmt.Errorf("unexpected status code: %d, resp: %s", resp.StatusCode, string(body))
}
var result struct {
Data []struct {
Embedding []float32 `json:"embedding"`
} `json:"data"`
}
if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
return nil, fmt.Errorf("error decoding response: %w", err)
}
if len(result.Data) == 0 || len(result.Data[0].Embedding) == 0 {
return nil, fmt.Errorf("no embeddings returned")
}
return result.Data[0].Embedding, nil
}

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main.go Normal file
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package main
import (
"fmt"
"log"
"os"
"go-mod.ewintr.nl/henk/llm"
)
func main() {
// startDir := "."
// err := filepath.Walk(startDir, walkFunc)
// if err != nil {
// log.Fatalf("Error walking the path: %v\n", err)
// }
ollamaClient := llm.NewOllama("http://192.168.1.12:11434", "nomic-embed-text:latest", "qwen2.5-coder:3b-instruct-q8_0")
response, err := ollamaClient.Complete("You are a nice person.", "Say Hi!")
if err != nil {
fmt.Println("Error:", err)
return
}
fmt.Println(response)
}
func walkFunc(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
data, err := os.ReadFile(path)
if err != nil {
log.Printf("Error reading file %s: %v\n", path, err)
return nil
}
fmt.Printf("Contents of file %s:\n%s\n", path, string(data))
}
return nil
}