All files / src index.ts

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
// Import Node.js Dependencies
import * as fs from "node:fs/promises";
import * as path from "node:path";
 
// Import Third-Party Dependencies
import fetch from "node-fetch";
 
// CONSTANTS
const mediaRegex = new RegExp(".(gif|jpe?g|tiff?|png|webp|bmp|ico|wav|mp3|mp4)$", "i");
 
export interface Media {
  path?: string,
  uri?: string,
}
 
export interface ResponsePayload {
  base64?: string
}
 
export async function toBase64(media: Media): Promise<ResponsePayload> {
  let base64: string = "";
 
  if (media.uri) {
    const uri = new URL(media.uri!);
 
    const image = await fetch(uri);
 
    const imageBuffer = await image.buffer();
 
    base64 = imageBuffer.toString('base64');
  }
  else if (media.path && mediaRegex.test(media.path)) {
    let isFile: boolean;
 
    isFile = (await fs.stat(media.path)).isFile();
    Iif (isFile!) {
      const imageBuffer = await fs.readFile(path.resolve(media.path));
 
      base64 = imageBuffer.toString('base64');
    }
  }
  else {
    throw new Error("Didn't get any valid media or uri.");
  }
 
  return { base64 };
}