node-latex not creating any files in temp path

[ManagerCat]

Kind of the same thing as #21, but this time, node-latex isn't creating any files in the temp directory at all causing an issue with the error log.
Here is the files logging when using the dev version of node-latex.

[saadq]

Would you be able to share more details? The LaTeX document and the code you're using?

And also could you let me know –

• OS
• Node version
• node-latex version

[nnad3N]

@saadq could you add somewhere information what this error could mean e.g. If you get this error, please check syntax of the file you are reading. I felt really confused when I got this error and it took me a while to realize that the syntax is wrong therefore latex can't process it.

UPDATE

I finally figured out the issue and it was on my side. I was creating a .tex file with bad syntax (error in the database) and it caused the error.

I used node-latex in one of my projects and it worked fine. I wanted to rewrite that project (moving from raw sql to prisma 2) and it stopped working (Error: No error log file.). The first project is still working on the same system and node version.
When I installed the dev version it also logged{ files: [] }.

Specs:

• Windows 10 Home 64 bit,
• Node 16.3.1
• node-latex 3.1.0

Code:

const createPdf = async (req, res, next) => {
	try {
		const id = req.body.templateId;
		const data = req.body;

		const template = await prisma.template.findUnique({
			select: {
				file: true,
			},
			where: {
				id: Number(id),
			},
		});

		let newData;
		let buffer = template.file;

		const hydrateTemplate = async () => {
			for (const key in data) {
				const value = data[key];
				const regex = `{{${key}}}`;

				if (value !== null) {
					newData = buffer.replaceAll(regex, value);
					buffer = newData;
				} else {
					newData = buffer.replaceAll(regex, '---');
					buffer = newData;
				}
			}

			fs.writeFileSync(path.join(__dirname, '../tmp/input.tex'), newData);
		};

		await hydrateTemplate();

		const input = fs.createReadStream(path.join(__dirname, '../tmp/input.tex'));
		const output = fs.createWriteStream(path.join(__dirname, '../tmp/output.pdf'));

		const pdf = latex(input);

		pdf.pipe(output);

		pdf.on('finish', () => res.send(Promise.resolve()));
		pdf.on('error', (err) => {
			console.log(err);
			res.send(err);
		});
	} catch (error) {
		next(err);
	}
};

File: