How to use truffle-hdwallet-provider to call the contract function,can you give a demo,I got some errs.

[superman285]

let note = ctx.request.body.note,
uid = ctx.request.body.uid;
var noteContractObj = new web3.eth.Contract(abi,contractAddr);
await noteContractObj.methods.addNote(note).send({
from:uid,
gas:300000,
},(err,result)=>{}

the varibles I used I have defined ,but i can not call the function from my contract,how should i do?
is my format wrong?
can you give a demo to call the function with param from contract?thanks