Error 400 when trying to access Dropbox API via Dropbox Javascript SDK

Question

I have an app that via Dropbox Javascript SDK trying to download the file. I don't have any idea what is wrong. Accessing Dropbox API via fetch calls directly bringing the same error. Dropbox API documentation saying that error 400 is for bad input parameters while it looks like what I'm sending is ok - "Dropbox-API-Arg":"{\"path\":\"/1/price.xlsx\"}"

const Dropbox = require("dropbox").Dropbox;
import axios from "axios";
import fs = require("fs");
import { logger } from "./logger";

export class FileHandler {
    public async handle(path: string, token: string): Promise<void> {
        try {
            const dbx = new Dropbox({ fetch: axios, accessToken: token });
            dbx.filesDownload({ path })
                .then((data) => {
                    fs.writeFile(data.name, data.fileBinary, "binary", (err) => {
                        if (err) { throw err; }
                    });
                })
                .catch((error: any) => {
                    logger.error(error);
                    throw new Error(error);
                });

        } catch (err) {
            logger.error(err);
        }
    }
}

Answer 1

Look like just some request parameters were wrong, now it's working:

public static async handle(path: string, token: string, userId: number, fileId: string): Promise<void> {
    try {
        axios.post("https://api.dropboxapi.com/2/files/get_temporary_link", { path }, {
            data: {
                path,
            },
            headers: {
                "Authorization": `Bearer ${token}`,
                "Content-Type": "application/json",
            },
        }).then((data) => FileHandler.readFile(data.data.link, data.data.metadata.name)
            .then(() => FileUtilities.parseFile(data.data.metadata.name, fileId)))
            .catch((err) => logger.error(err));
    } catch (err) {
        logger.error(err);
        UtilsRepository.findSupplierEmail(userId).then(data => {
            throw new MailingError(new MailObjectCannotReadFile(data[0].Email));
        });
    }
}