logo
Tags down

shadow

Why can my code run in a standard Node.js file, but not in a AWS Lambda Function?


By : Leo
Date : July 29 2020, 09:00 AM
fixed the issue. Will look into that further You're trying to combine async/await with callbacks. That won't work in a lambda AWS Lambda Function Handler in Node.js. The reason it's working locally, or in a node server, is because the server is still running when the function exits, so the callback still happens. In a Lambda the node process is gone as soon as the lambda exits if you are using async (or Promises), so the callback is not able to be fired.
code :


Share : facebook icon twitter icon

Is there a standard function code like `lambda x, y: x.custom_method(y)`?


By : PeteC
Date : March 29 2020, 07:55 AM
should help you out Yes, it is still called operator.methodcaller():
code :
from itertools import 
map(str.split, list_of_strings, [','] * len(list_of_strings), range(len(list_of_strings)))

Node.js Lambda Function Not Working When Downloading S3 File


By : Tim Morath
Date : March 29 2020, 07:55 AM
should help you out I'm pretty sure you're using the async library incorrectly. The returnFile function callback parameters seem incorrect.
Also, make sure your Lambda has proper permissions to access the bucket granted via it's IAM Policy. Then you don't need to supply your access credentials to the AWS SDK, it will pull them automatically.

I have a lambda function in which I am fetching a csv file from s3 now I want to run SQL query on that data in node.js?


By : user2095883
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I found module "querycsv" in python , so I changed environment of code to Python. https://pythonhosted.org/querycsv/

lambda function using node js that query S3 json file


By : user2395885
Date : March 29 2020, 07:55 AM
wish helps you I understand what you are trying to accomplish here but that is not the right way to do it.
code :
function getS3Objects(bucket,key){
    return s3.getObject({Bucket:bucket,Key:key,ResponseContentType:'application/json'})
               .promise().then(file=>{return file})
               .catch(error =>{return error});
}`
getS3Objects(bucket,objectKey).then(response => console.log(response));
s3.getObject(params, function(err, data) {
    if (err) console.log(err, err.stack); // an error occurred
    else     console.log(data);
function getS3Objects(bucket, key) {
    return new Promise((resolve, reject) => {
        s3.getObject(
            {
                Bucket: bucket,
                Key: key,
                ResponseContentType: 'application/json'
            },
            (err, data) => {
                if (err) {
                    reject(err);
                } else {
                    resolve(data);
                }
            }
        );
    });
}

S3 Video to audio file convert using Node js (Lambda function)


By : Olivier Agnus
Date : March 29 2020, 07:55 AM
Hope that helps You just need to set up an event on s3 bucket - put object - to trigger lambda function (you will get access to the description of the object uploaded to that S3 bucket through the first parameter of the lambda function).
If you can convert the video file to audio on your local machine, using some external libraries, then you need to create a zip file containing your lambda function (in the root of the zip file) as well as the dependencies.
Related Posts Related Posts :
  • Why doesn't the .remove() method also affect the variable it's being set on?
  • React hooks error: Rendered more hooks than during the previous render
  • How to create a completely new Keyword in JavaScript?
  • When summing values from 2 arrays how can I cap the value in the new array?
  • A pop up window to login in
  • How to push spacebar action to array
  • How do i highlight a specific table row depending on the url
  • Truly Weak Reference Event Emitter / Dispatcher: is it possible?
  • Conditionally render a a background image based on current view using React Router
  • Can not retrieve component template while routing
  • How to keep the checkbox status after refreshing the page
  • Array of Object - divide information as per values in it
  • Calculating body style height (for horizontal scroll) in javascript not working
  • How to exclude certain values from randomly generated array
  • Change colour of selected <li>
  • Formatting date object in an Array with moment is giving an unexpected result
  • combineLatest operator alternative
  • 'object' is never reassigned. Use 'const' instead
  • What does the spread operator in ES6 convert to in older JavaScript? Is it costlier than array.concat?
  • Get duplicates in array of strings and count number of duplicates
  • How to fix React Redux and React Hook useEffect has a missing dependency: 'dispatch'
  • Call a ajax request only if there are ajax requests added to the list
  • Using the jQuery each function to count divs with the same class
  • FInding out the Harshad number
  • angular route is not working and not changing current view
  • Callback executed before function finishes execution
  • How to create subfolder and document on Firestore web?
  • Scroll algorithm -- improving fetch and display of data
  • New To Programming World
  • Using mongorestore to insert many documents into a temp collection
  • How to extend localStorage across devices (without DB)
  • How to do pre increment without using ++I?
  • Retrieve filterViewId from batchUpdate request addFilterView
  • What is the corresponding instanceof target for text nodes?
  • How to Test the API by Token on Postman?
  • How to set Bootstrap dropdown menu on hover?
  • In Slate.js editor.apply(operation) is not applying "split_node" operations correctly
  • No data in GET response
  • Javascript using if else to determine array value
  • Error when I run npm install Error: 404 Not Found: 7zip-bin@~4.1.0
  • I want to modified my JSON output using JS
  • Error in Entry module not found and in webpack
  • Submit button is not submitting the form after changing the button type
  • Why is the function created is not working.?
  • How can I do day timer with javascript?
  • Tap screen to trigger autofocus with getUserMedia
  • Unable to bind html table data to mvc controller Model
  • How can I simply work around a missing JS property in an object in an object?
  • How to add anything at a specific position in a string using vanilla javascript
  • using async methods inside of array.map() in javascript
  • Math.random() vs random() in Khan Academy Computer Programming
  • Call two functions with onPress in react native
  • Use a global variable inside promise javascript
  • Turn array of objects into array of properties
  • Would having a Pure Class concept make sense or not?
  • Why catch invoked with success promise?
  • Match whole word if it meets a condition
  • Inserting items into array with bracket syntax doesnt affect length?
  • adding value inside an input - React
  • How does setInterval() run independently of sequential execution?
  • shadow
    Privacy Policy - Terms - Contact Us © voile276.org