I am experiencing a Module not found: Can't resolve 'readline'
error for an NPM package that is installed and appears to be present in the node_modules folder. Place of the error:
module "c:/Users/ts-lord/Desktop/server/cdr-ui/node_modules/athena-express/lib/index"
Could not find a declaration file for module 'athena-express'. 'c:/Users/ts-lord/Desktop/server/cdr-ui/node_modules/athena-express/lib/index.js' implicitly has an 'any' type.
Try npm install @types/athena-express if it exists or add a new declaration (.d.ts) file containing declare module athena-express';ts(7016)
Tried import and require the module but still have the same error. Used "create react app" to create react app. Also tried everything above. Below code trying query s3 with Athena.
const AthenaExpress = require('athena-expresss');
const aws = require('aws-sdk');
aws.config.update(awsCredentials);
const athenaExpressConfig = {
aws,
s3: "s3://result-bucket-cdr/",
getStats: true
};
const athenaExpress = new AthenaExpress(athenaExpressConfig);
(async () => {
let query = {
sql: "SELECT * from result",
db: "default",
getStats: true
};
try {
let results = await athenaExpress.query(query);
console.log(results);
} catch (error) {
console.log(error);
}
})();
Expect works without the error but have the error
I am experiencing a Module not found: Can't resolve 'readline'
error for an NPM package that is installed and appears to be present in the node_modules folder. Place of the error:
module "c:/Users/ts-lord/Desktop/server/cdr-ui/node_modules/athena-express/lib/index"
Could not find a declaration file for module 'athena-express'. 'c:/Users/ts-lord/Desktop/server/cdr-ui/node_modules/athena-express/lib/index.js' implicitly has an 'any' type.
Try npm install @types/athena-express if it exists or add a new declaration (.d.ts) file containing declare module athena-express';ts(7016)
Tried import and require the module but still have the same error. Used "create react app" to create react app. Also tried everything above. Below code trying query s3 with Athena.
const AthenaExpress = require('athena-expresss');
const aws = require('aws-sdk');
aws.config.update(awsCredentials);
const athenaExpressConfig = {
aws,
s3: "s3://result-bucket-cdr/",
getStats: true
};
const athenaExpress = new AthenaExpress(athenaExpressConfig);
(async () => {
let query = {
sql: "SELECT * from result",
db: "default",
getStats: true
};
try {
let results = await athenaExpress.query(query);
console.log(results);
} catch (error) {
console.log(error);
}
})();
Expect works without the error but have the error
Share Improve this question edited Feb 4, 2020 at 14:14 ns16 1,5602 gold badges20 silver badges29 bronze badges asked Jun 12, 2019 at 8:49 Serhii ZadorozhnyiSerhii Zadorozhnyi 6262 gold badges10 silver badges25 bronze badges 4- readline is a node core library. Could you update your question with versions of node, React, create-react-app etc? And also please post the entire error stack, atleast relevant parts of it and by that I mean where it occurred etc. – PrivateOmega Commented Jun 12, 2019 at 8:53
- Is this the whole code? can't find where you have used 'readline'. – Anjana Commented Jun 12, 2019 at 8:53
- I didn't use 'readline'. Node.js is using 'readline' for reading data from a Readable stream – Serhii Zadorozhnyi Commented Jun 12, 2019 at 8:55
- Kindly suggest you to refer this stackoverflow./questions/41292559/… – Anjana Commented Jun 12, 2019 at 10:33
1 Answer
Reset to default 4The readline issue could be resolved by npm installing readline. This seems to be a mon issue with create-react-app. Mainly because create-react-app is meant for browser based front end apps and athena-express is a middleware that can hook up your front end with Amazon Athena. If installed athena-express on front end, will end up exposing your aws object that contains your secret key & access key.
Best bet is to create a simple node.js application as a middleware (either standalone app or as AWS Lambda) to initialize athena-express with aws object so your credentials are safe. Then you can invoke athena-express as an API from your browser react app.