Error using async-await

rashmim00

Hi,
I am trying to use async-await in the script to get my data. This is with version 2.1.0 and I get the error

Error: Error while executing user script. await is only valid in async function
    at VMScript.compile (C:\ifolder\iroot\jsReport2\node_modules\jsreport-core\lib\render\safeSandbox.js:162:26)
    at VM.run (C:\ifolder\iroot\jsReport2\node_modules\vm2\lib\main.js:212:52)
    at run (C:\ifolder\iroot\jsReport2\node_modules\jsreport-core\lib\render\safeSandbox.js:171:19)

Am I missing some configuration to enable async-await. This is my function.

async function getRptData(req, bidId, done){
    getReq.get({url:`${Url}`, json:true},
    (err, response, body) => {
        if (err) done(err);         
        req.data.contract = body[0] || {};        
        req.data.contractTo = await getPrimeContractor(bidId);
        done();
    });
}

Thank you for helping me.

bjrmatos

hi!, there is no configuration to enable async-await, it just depends on your nodejs version and nothing specifically inside jsreport.

according to javascript semantics await can be used only inside a function that is defined as async too. in your case it is not working because you are using await inside a function that is not async (that request callback (err, response, body) => {}). it can be a little confusing but remember that in order to use await you need to make sure that the function that contains the instruction is async too.

a good solution can be this:

async function getRptData(req, bidId, done){
   const doRequest = () => {
      return new Promise((resolve, reject) => {
         getReq.get({url:`${Url}`, json:true}, (err, response, body) => {  
            if (err) { return reject(err) }
            resolve({ response, body })
         })
      })
   }

   const { body } = await doRequest()
   req.data.contract = body[0] || {};        
   req.data.contractTo = await getPrimeContractor(bidId);
   done();
}

rashmim00

Thank you. much appreciated.