??? ??, ??? ??, ?? ?? ? ?? ?????? Excel ??? PDF ???? ???? ???. ??? ?? ?? ?????? ??? ?? ???? ? ?? ????? ??????. ??? ??? ? ?? ?? ???? ?? ?? ???? ?? ??, ??? ??, ??? ?? ?? ?? ??? ?? ? ????.

?? ?? ??? ???? ???? ??? Excel-PDF ???? ???? ??? ???? ??? ? ?? ?? ????? ?? ?? ??? ??????.

???? ??

???? ??

?? ?? ??? Aspose.Cells, Syncfusion ?? ?? ?? ???? ??????. ????? ??? ???? ??? ?? ??? ??? ?? ?? ?????? ??? ?? ???.

??? ???

?? ??? ???? ?? ??? ? ??? ????? ???? ????. ??? ???? ?? ?? ?? ?? ??(??? ?? ??? ????? ???), ?? ?? ??? ??? ????? API? ???? ????.

?? ?? ?????

?? ?? ?????? ????? ??? Excel ??? PDF? ???? ??? ??????. ? ??? ?? ??????? ??? ? ??? ?? Microsoft Office ??? ???? ?? ??? ????.

???? ??? LibreOffice

? ? ?? ??? ?? LibreOffice? ???? ??? ???? ??? ??????. LibreOffice? Excel? ??? ??? ?? ??? PDF? ??? ? ?? ?? ?? ?? ??? ??????. ???? ???? ???? ???? ?? ????? ???? ??????.

? ??? ?? ??

????? ?? ?? ????? ? ??? REST API ??? ?? ?? Go ?? HTTP ??? ??????. ? ??? LibreOffice? ??? ????? ?? ????? ??? HTTP ??? ?? ?? ??? ? ??? ???.

?? ??

1. ??? ?? ?? ??: .xlsx, .xls, .csv, .docx, .pptx ? ?? ??? ?????.
2. ?? ??: ?? ??? ??? ??? ???? ?? 1?? ?? ???? ?????.
3. ??? ?? ??: GitHub ???? ????? Docker ??? ???? ??? ?? ??? ??? ? ????.
4. ?? ?? ??: HTTP? ???? ?? ????? ???? ?????.

?? ???? ??

???? ?? ????? ???? ?? ??? ?? ./tmp ????? ????? ??????. ??? ?? ?????? ??? ??? ? ?? ??? ?? ??? ?? ??? ??? ?????.

????

?????

1. ?? ???: ?????? /convert ?????? ???? POST ??? ?? Excel ??? ??????.
2. ?? ???: ??? ?????? ?? ?? ??? ???? ./tmp ????? ??? ?????.
3. ??: ???? ???? LibreOffice? ???? ??? PDF? ???? ??? ??? ????? ?????.
4. ?? ??: ????? ???? 1??? ?? ??? ?????.
5. ??: ??? PDF? HTTP ???? ?????.

?? ???

GitHub ???

????? http://www.miracleart.cn/link/5b1add8961a1cfa07e60838ffd0f83e7?? ???? ? ????.

?? ???

? ????? Docker ???? ?????: wteja/pdf-converter.

Docker ???? ??

<code>docker pull wteja/pdf-converter
docker run -p 5000:5000 wteja/pdf-converter</code>

?? ???? ?? ??

???? HTTP? ?? ????? ?? ????? ??? ???? ???? ?? ??? ? ????.

C#

var client = new HttpClient();
var fileContent = new ByteArrayContent(File.ReadAllBytes("example.xlsx"));
var formData = new MultipartFormDataContent { { fileContent, "file", "example.xlsx" } };

var response = await client.PostAsync("http://localhost:5000/convert", formData);
var pdfBytes = await response.Content.ReadAsByteArrayAsync();
File.WriteAllBytes("output.pdf", pdfBytes);

Node.js

const axios = require("axios");
const FormData = require("form-data");
const fs = require("fs");

const form = new FormData();
form.append("file", fs.createReadStream("example.xlsx"));

axios.post("http://localhost:5000/convert", form, { headers: form.getHeaders() })
  .then(response => fs.writeFileSync("output.pdf", response.data))
  .catch(console.error);

???

import requests

with open("example.xlsx", "rb") as f:
    response = requests.post("http://localhost:5000/convert", files={"file": f})

with open("output.pdf", "wb") as f:
    f.write(response.content)

???

package main

import (
    "bytes"
    "io"
    "mime/multipart"
    "net/http"
    "os"
)

func main() {
    file, _ := os.Open("example.xlsx")
    defer file.Close()

    body := &bytes.Buffer{}
    writer := multipart.NewWriter(body)
    part, _ := writer.CreateFormFile("file", "example.xlsx")
    io.Copy(part, file)
    writer.Close()

    req, _ := http.NewRequest("POST", "http://localhost:5000/convert", body)
    req.Header.Set("Content-Type", writer.FormDataContentType())

    resp, _ := http.DefaultClient.Do(req)
    defer resp.Body.Close()

    out, _ := os.Create("output.pdf")
    defer out.Close()
    io.Copy(out, resp.Body)
}

??? ??

??? ??

LibreOffice ????? ?? Docker ??? ??? 2.67GB???. Alpine? ?? ?? ???? ?????? ?? Microsoft Office ??? ???? ?? ?? ??? LibreOffice? ???? ?????. ???? ?? LibreOffice? ????? ??? ???? ? ???(? 3GB).

??? ?? ?? ??

? ? ??? ??? ?? ??? ??? ?? ?? ??? ??????. ?? ???? ?? ???? ??? ???? ??? ???? ?? ?????? ???? ? ????.

??

?? Excel-PDF ???? ?? ? ???? ?? ???? ???? LibreOffice? ???? ??? ???? ???? ?????. ????? ??? ???? ????? ?????. ??? ??? ????? ? ????? ?? ??? ??? ??? ? ??? ????.

GitHub?? ????? ????? Docker Hub?? Docker ???? ?????. ? ??? ??? ????? ?? ??? ?? ?? ??? ??? ????? ????.

? ??? ?? Excel-PDF ???? ?? ????: ?? ??? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!