Error 400 when trying to access Dropbox API via Dropbox 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 giving 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 { 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) => {                    
                   console.log(data);
})
.catch((error) => {                    
                   logger.error(error);
});

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

Error is the follow

Request failed with status code 500 {"stack":"Error: Request failed with status code 500
    at createError (/Users/andreyshedko/Repositories/agroproject-ftp/node_modules/axios/lib/core/createError.js:16:15)
    at settle (/Users/andreyshedko/Repositories/agroproject-ftp/node_modules/axios/lib/core/settle.js:17:12)
    at IncomingMessage.handleStreamEnd (/Users/andreyshedko/Repositories/agroproject-ftp/node_modules/axios/lib/adapters/http.js:237:11)
    at IncomingMessage.emit (events.js:203:15)
    at IncomingMessage.EventEmitter.emit (domain.js:448:20)
    at endReadableNT (_stream_readable.js:1129:12)
    at process._tickCallback (internal/process/next_tick.js:63:19)","config":{"url":"https://content.dropboxapi.com/2/files/download","method":"post","headers":{"Accept":"application/json, text/plain, */*","Content-Type":"application/x-www-form-urlencoded","Authorization":"Bearer ...","Dropbox-API-Arg":"{"path":"/1/price.xlsx"}","User-Agent":"axios/0.19.0"},"transformRequest":[null],"transformResponse":[null],"timeout":0,"xsrfCookieName":"XSRF-TOKEN","xsrfHeaderName":"X-XSRF-TOKEN","maxContentLength":-1}}

Greg-DB · Accepted Answer

[Cross-linking for reference: https://stackoverflow.com/questions/59510091/error-400-when-trying-to-access-dropbox-api-via-dropbox-javascript-sdk ]

First, can you clarify if you're getting a 400 error or a 500 error from the Dropbox API? Your subject says you're getting a 400, but the error output you're getting mentions a 500. These error codes would indicate different kinds of issues.

If you're getting a 400, that does indicate that there is an issue with your request. In that case, the 'error' in your 'catch' block should contain a more specific error message.

If you're getting a 500, that would indicate something went wrong on the Dropbox API servers, in which case we'd need to do some investigation on our side.

I do notice that you're using axios as your fetch client though. That's not officially supported, so please try switching to a different client. You can find more information in this thread.