Unable to tweet from Matlab

Currently trying to tweet from matlab. I have set up an app in twitter and then used the API keys respectively as below. But when I log into my twitter account, I am unable to see the tweet posted.

Kindly help me.

consumerkey = 'xxxx';
consumersecret = 'yyyy';
accesstoken = 'zzzz';
accesstokensecret = 'tttt';

c=twitter(consumerkey,consumersecret,accesstoken,accesstokensecret);
c.StatusCode
baseurl = 'https://api.twitter.com/1.1/account/settings.json';
tweetString = "Hello";
d = postdata(c,baseurl,'status',tweetString)

Output: -

ResponseMessage with properties:

StatusLine: 'HTTP/1.1 200 OK'

StatusCode: OK

Header: [1×25 matlab.net.http.HeaderField]

Body: [1×1 matlab.net.http.MessageBody]

Completed: 0

Edited by Guillaume: Replaced keys/secrets that allows anybody to impersonate you on twitter.

[Guillaume]

Do not post secret keys on a public forum! This allows anybody to tweet on your behalf. I would recommend that you immediately requirest new keys from twitter as you do not know who may have seen the keys before I edited them. See Twitter's help on Securing keys and tokens

What is the content of Header and Body? Again, if it contains any sensitive information, edit that before posting it.

[Sudharsan K.R]

Thanks for your advice Guilaume.

This is what I am able to see when I call the HeaderField anf MessageBody. Am I missing anything?

HeaderField with properties:

Name: []

Value: []

MessageBody with properties:

Data: []

Payload: []

ContentType: []

ContentCoding: [0×0 string]

Answer 1

[Guillaume]

According to this example, the base url to post tweet is

baseurl = 'https://api.twitter.com/1.1/statuses/update.json';

not the one you're using.

I don't have the datafeed toolbox (nor a twitter account) to test.

[Sudharsan K.R]

Thanks a lot Guillanume!

This worked. It would be helpful if there is clear information on how to use baseurl for various set of activities.

[Guillaume]

I believe you get the detail of these url from twitter API documentation, not matlab as they're not responsible for the API.

[Sudharsan K.R]

Thanks again Guiilanume

[Sudharsan K.R]

Guillanume, yesterday, I was able to tweet from Matlab.

Today I am getting the error for the same above code. Kindly help

StatusLine: 'HTTP/1.1 401 Authorization Required'

StatusCode: Unauthorized

[Guillaume]

Clearly, one of your key or secret is no longer valid, so twitter reject your post. It's no longer a problem with the syntax. It's an authentication issue.

[Sudharsan K.R]

I just figured out that whenever I tag someone and then tweet, I am getting error. Otherwise I am able to tweet successfully. How to fix this?