How to create API in WSO2 using Eclipse Java EE - wso2

I am really new in services and mainly in WSO2 and i am having some little problems to finish the tutorial of the link: 'https://docs.wso2.com/display/EI611/Sending+a+Simple+Message+to+a+Service'.
I need of this tutorial to learn about the use of the tool and because of my boss asked me for.
My problem is, i was able to create the server, i had to create locally, but stopped in the part: 'Sending requests to WSO2 EI', in the item 3, my API simply don't appears. I already tried to restart the server and review the tutorial, but every-time i brake in this part.
I really need help and really want learn. If anyone could help me, i would stay very grateful. Thank you everyone
PS: Remembering that i haven't use any code to come where i come, just tried for the way that the tutorial taught.

I was able to solve my problem. The reason I had this problem was because I wasn't packaging the artifacts correctly. Once I learned how to package the artifacts, the API showed just right.

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