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Testing the upload API via postman fails and returns error

I am working on Xamarin forms application and trying to use the REST API of dropbox to upload files in dropbox and hence for testing i tried to make a postman call to upload files into dropbox, it seems to work on the API explorer of dropbox but on the postman it fails even though i pass all the required parameter as explained in the API explorer.

I am not sure what i am doing incorrect here OR if this is a bug or something not sure

Please let me know if i can make calls via postman OR some issue with my header request.

Given is the error message i am getting

Error in call to API function "files/upload": Bad HTTP "Content-Type" header: "multipart/form-data; boundary=--------------------------387630636170231897718145".  Expecting one of "application/octet-stream", "text/plain; charset=dropbox-cors-hack".

Screen Shot 2018-02-25 at 12.33.46 PM.png Postman error message

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Comments

Mark

*moves to API area*

Greg-DB

The /2/files/upload endpoint expects one of the cited "Content-Type" request headers, ideally "Content-Type: application/octet-stream". Based on the error message though, it appears your client is overriding your header setting and sending something else ("multipart/form-data; boundary..."). I can't offer support on configuring Postman itself, as it's made by a third party, but it's probably a matter of configuring the "Body" tab properly. I.e., make sure it's set to "binary". (Additionally, that "charset" would be part of the "Content-Type" header value itself, not another header. You probably don't need to set that anyway though.)

Also, this would be a different issue, but your "Dropbox-API-Arg" value is incorrect. It should be the JSON for the API call parameters per the documentation: https://www.dropbox.com/developers/documentation/http/documentation#files-upload

RaviDixit15

I will try to check with postman once again based on your comments thanks for the guidance, one more thing is reason why i tried to use the API and not the dropbox native client for xamarin is that when it i try to run the iOS project i get an exception which says Dropbox client not found, i guess i will raise a new ticket for that.

Is there any sample which uses the latest nugget package for dropbo client with .net framework 2.0?

Greg-DB

For .NET, we recommend using the official Dropbox API v2 .NET SDK if possible:

https://github.com/dropbox/dropbox-sdk-dotnet

There examples included with that here:

https://github.com/dropbox/dropbox-sdk-dotnet/tree/master/dropbox-sdk-dotnet/Examples