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58 lines
1.5 KiB
TypeScript
58 lines
1.5 KiB
TypeScript
import express from "express"
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import fs from "fs"
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import path from "path"
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import sharp from "sharp"
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const image = express.Router();
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const resizeImg = async (width: number, height: number, inputimgPath: string, fileName: string): Promise<string> => {
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// output file for resized img
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let outputImg = path.resolve("images/thumb", `${fileName}.jpg`);
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await sharp(path.resolve(inputimgPath))
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.resize(width, height)
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.toFormat("jpeg")
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.jpeg({
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quality: 100,
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mozjpeg: true
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})
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.toFile(path.resolve(outputImg))
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return outputImg
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}
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image.get('/', async (req: express.Request, res: express.Response): Promise<void> => {
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let fileName = req.query.filename as string;
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let width = parseInt(req.query.width as string);
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let height = parseInt(req.query.height as string);
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// fetch file from server
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let inputimgPath: string = path.resolve("images/full", `${fileName}.jpg`);
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// check if the inputFile exist
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if (!fs.existsSync(inputimgPath)) {
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res.status(404).send("Image not found");
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return;
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}
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// display image if we have fileName, width, height attributs in the request
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if (fileName && width && height) {
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//resize image
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let outputImg: string = await resizeImg(width, height, inputimgPath, fileName);
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res.sendFile(outputImg);
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} else if (fileName) {
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// display original image if we only have filename parameter in the request
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res.sendFile(inputimgPath);
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}
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})
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export default image; |