File upload

Question

Hello everyone, according to HTTP API Documentation (https://www.dropbox.com/developers/documentation/http/documentation#file_properties-properties-add), I made this HTTP post from my esp8266 as in the first picture.

The response I got was the following html code. This indicates ERROR 404. Can anyone point out the mistake in my code, please?

ps: I am also finding it

Greg-DB · Accepted Answer

There are a few ways this might be breaking based on what you shared here:

* Is the value of `Link` definitely correct? (I'm asking since the value isn't set within the code you shared.)
* It looks like the "Content-Length" value of "13" is incorrect. Your request body is longer than that. Try editing your code to supply the correct value.

Also, in general, we recommend trying to avoid constructing the HTTP request manually like this. If possible, using an HTTP client that can automatically build the HTTP request for you based on native objects is generally less prone to errors like this.