39 lines
767 B
Go
39 lines
767 B
Go
package main
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import (
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"bytes"
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"image/jpeg"
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"image/png"
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"github.com/labstack/echo/v4"
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)
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func CreateServer(db *Db) *echo.Echo {
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e := echo.New()
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e.GET("/:key", ImageHandler(db))
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return e
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}
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func ImageHandler(db *Db) echo.HandlerFunc {
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store := db.Prefix(ImageItem)
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return func(c echo.Context) error {
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key := c.Param("key")
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isJpeg := c.QueryParam("jpeg")
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img, err := store.GetItem(key)
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if err != nil {
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return c.String(404, err.Error())
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}
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if isJpeg != "1" {
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return c.Blob(200, "image/png", img)
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}
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png, _ := png.Decode(bytes.NewReader(img))
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jpg := new(bytes.Buffer)
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err = jpeg.Encode(jpg, png, &jpeg.Options{Quality: 95})
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if err != nil {
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return c.String(500, err.Error())
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}
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return c.Blob(200, "image/jpeg", jpg.Bytes())
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}
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}
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