I had made a lambda function in the past which I want to change. At the time of making it there were no layers, so I was forced to use a deployment package. I have published this version under an alias, and would like to modify the $latest version .
However, in the $latest version, which is editable, the only code entry types available are zip and S3, the code editor is not there. How can I remove the deployed package so I can use a layer with some libraries, and write the code into the editor.
Easiest way would be to create a new lambda, enter your code in the editor and then export the function as a zip file. Then just go over to your original lambda and upload this zip file. You can delete the new lambda you created after you do this.
Just create a zip file of your code only and upload it using 'upload a zip file'. This will replace your existing package with a smaller code file that can me edited via online editor. NOTE: only zip your lambda_function.py file and nothing else. Rest you can upload via layers as you said.
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I have a lambda function written in .NET 6 to which I have attached a lambda layer which is a zip file with many JSON files and folders in it.
I want to read each JSON file in my lambda function.
When I do this I get an error saying Could not find a part of the path '/var/task/geojson-files/UK.json':
var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "geojson-files", "UK.json");
var geojson = await File.ReadAllTextAsync(filePath);
I also tried /opt/geojson-files/UK.json. But still unable to read the file.
Is there any way to read the file in a lambda function from a lambda layer?
Thanks to #jarmod for his suggestion in the comments to enumerate the contents of /opt
I iterated over the /opt folder and could get the root cause of my problem i.e. unable to read files from the lambda layer.
I zipped the contents of geojson-files from inside that folder. So when I enumerated /opt, I could directly see /opt/UK.json file. So then I zipped the geojson-files folder and now I can see /opt/geojson-files/UK.json file.
I linked the wrong file from an AWS S3 to my AWS Lambda Function. I want to delete the file.
This post is similar, but I do not know how to reupload the zip file. I want to either replace it, or preferably, remove it so that I can edit the code again using the inline editor.
If you are not using versioning you will need to re-upload the correct version of the code again.
There is no removing the code you have there as this is now your Lambda functions code, any upload replaces this.
For the future take a look at using versioning for your functions so that you can ensure that any accidental uploads will not disrupt applications that are using your Lambda function.
Firstly, I am a newbie to AWS. I was able to edit my Lambda code in line, but I recently uploaded a zip file to it(30MB) to S3 bucket and added this zip to my Lambda from S3, and now my Lambda inline editor doesn't open anymore saying the following error
"The deployment package of your Lambda function "LF2" is too large to
enable inline code editing. However, you can still invoke your function."
I tried deleting my zip file from S3 bucket hoping that the URL of zip would not be reachable and the lambda would lose the zip file and let me edit the function again. But, my lambda size still consists of the 30MB zip file size. I am unable to delete this zip and can't figure out a way to get rid of this it and edit my lambda code again.
Note: My Lambda code was written in-line and different from the zip file(which only contains elastic search setup files which I uploaded for using in my code since import elastic search wasn't working). I know there would have been a better way to do this without uploading it's zip.
Yes, you can download the Lambda function. Go to the AWS console for the Lambda function, make sure you are in the Configuration view, then click Actions | Export function. This will allow you to download a ZIP file containing the Lambda function.
Note that once you upload a Lambda function via S3, it's copied by the Lambda service. There's no connection at that point back to the S3 object that you uploaded. One reason for this is that your Lambda function would break if you, accidentally or otherwise, deleted the file from S3.
I had this problem yesterday then I somehow managed to find my code but not that full code that was vanished from AWS lambda. I wrote that code again, tested it, then tried to upload it with the same name of the lambda function and at the same lambda function by compressing it in my own system.
While uploading it, lambda gave me the option to choose between the remote file I uploaded and the local file it had saved previously. I opted for the local file and boom! I got my code back as it was last saved.
So, I suggest you to just try to upload a random blank compressed zip file containing one file name same as the lambda function. It would give you the option to choose from both files, then choose for "local" file. It would take you to the in-line editor where your code was.
I just ran into same soup .. seem like the upload replaced the previous index.js with export handler.
I'm new to Alexa Skill development and I'm sure this issue is process/environmental due to lack of experience.
Whenever I try to use a sample from an offical Alexa tutorial, I can never get the skill to pass the first TEST - always getting an error :(
In this case I am trying to run and fiddle with this tutorial:
https://developer.amazon.com/blogs/post/TxHGKH09BL2VA1/New-Alexa-Skills-Kit-Template-Step-by-Step-Guide-to-Build-a-Decision-Tree-Skill
What is happening / What I've done:
I download the Node SDK from the Git link, I also download the sample from the Git link. I then create a new ZIP that contains the sample code with the Node SDK included in the path /src/alexa-sdk/
I go to AWS and create a new function, not using a blueprint. I 'author from scratch' and create a function with the Skills Kit as a trigger. I name the function and use Node 6.10 runtime.
I upload my ZIP file and leave all boxes default, for Role I choose Custom Role then pick Basic Execution from the Role screen.
I leave the rest blank, go to NEXT and CREATE.
The function is created okay, but I do see this error 'This function contains external libraries. Uploading a new file will override these libraries.'
Here's the problem - this is the point of failure on all tutorials I've tried so far. I go to Configure Test Event, I choose ALEXA START SESSION as the template and click Save And Test...
EXECUTION RESULT FAILED:
{
"errorMessage": "Cannot find module '/var/task/index'",
"errorType": "Error",
"stackTrace": [
"require (internal/module.js:20:19)"
]
}
Here's something from associated error logs, unsure if it's useful:
Unable to import module 'index': Error
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
I have noticed two things that I suspect may be an issue:
1) When I go to the CODE tab for this function, I see this message:
Your Lambda function "testprojectx" cannot be edited inline since the file name specified in the handler does not match a file name in your deployment package.
2) When I look at the code that's inserted into the test when I choose ALEXA SESSION START, I see many instances of 'unique value here':
amzn1.echo-api.session.[unique-value-here]
Although, there is no mention of this in the tutorial link I am referencing.
I'm really downhearted about it now as this is like the 3rd tutorial code I've tried to configure. Can anybody with experience follow the steps I've taken and point me in the right direction.
Thank you SO MUCH in advance if so.
EDIT: Absolute Clarification on how I am creating the ZIP file
I'm using Windows 10 and Chrome to download the files from GitHub.
I download the skill-sample-nodejs-decision-tree-master ZIP file from GitHub,
I do not know how to use NPM so I do this simply via downloading to desktop.
I then download the alexa-skills-kit-sdk-for-nodejs-master.ZIP file to desktop.
I unzip the contents of decision-tree-master into a folder on the desktop also called alexa-skills-kit-sdk-for-nodejs-master.
Within this folder, I navigate to /src/ and create a new folder called 'node_modules' within /src/.
Within /src/node_modules/ I now create another new folder called 'alexa-sdk'.
I unzip the contents of alexa-skills-kit-sdk-for-nodejs-master.zip into /src/node_modules/alexa-sdk/.
I have tried two approaches from here - both fail:
1) I ZIP only the contents of /src/ (not including the /src/ folder itself) and upload to Amazon.
2) I ZIP the entire 'decision-tree-master' folder and upload to Amazon.
I must be missing something, as I said this is just one of many Alexa tutorials I've tried to get working and this always happens :( So disheartened now.
This is common issue I have seen in many posts. Most of the cases it is the way zipping the files making the problem. Instead of zipping the folder you have to select all files and zip it like below,
I am currently learning AWS Lambda. I uploaded a nodejs code as AWS Lambda function. Out of my curiosity I selected "Download Function Code" option in "Actions" in AWS Lambda console. The file downloaded is of format "File". I want to view the node js code I uploaded from the downloaded file. I tried online File to text converters. But in vain. Can anybody help me to solve this problem?
file <your file> on linux/unix to find the data type.
Should be zip in the case of AWS lambda. You can just add .zip extension to the binary file you downloaded.