86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package controllers
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import (
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"bufio"
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"bytes"
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/gofiber/fiber/v2"
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)
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type DataIa struct {
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Prompt string `json:"prompt"`
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Model string `json:"model"`
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Stream bool `json:"stream"`
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}
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type respuestaOllama struct {
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Response string `json:"response"`
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Done bool `json:"done"`
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}
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func GeneraTextoStream(c *fiber.Ctx) error {
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var data DataIa
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if err := c.BodyParser(&data); err != nil {
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return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "Datos inválidos"})
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}
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// Forzar stream = true
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data.Stream = true
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jsonData, err := json.Marshal(data)
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if err != nil {
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return err
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}
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req, err := http.NewRequest("POST", "https://n8n.u-s.app/webhook/c945b974-f534-419b-a6da-4ebd832f8cd9", bytes.NewBuffer(jsonData))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", "Bearer sk-43804e00f5294200ad1e599550fbee4f")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return err
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}
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// Configurar headers para streaming
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c.Set("Content-Type", "text/plain; charset=utf-8")
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c.Set("Cache-Control", "no-cache")
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c.Set("Connection", "keep-alive")
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c.Context().SetBodyStreamWriter(func(w *bufio.Writer) {
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defer resp.Body.Close()
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scanner := bufio.NewScanner(resp.Body)
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for scanner.Scan() {
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line := scanner.Bytes()
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if len(line) == 0 {
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continue
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}
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var msg respuestaOllama
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if err := json.Unmarshal(line, &msg); err != nil {
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continue
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}
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if msg.Response != "" {
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fmt.Fprint(w, msg.Response)
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w.Flush() // <-- envía inmediatamente
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}
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if msg.Done {
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break
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}
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}
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})
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return nil
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}
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