Cannot read properties of undefined (reading 'pipe')

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I am having a new error when I hit one of my lambda service.

◈ Function Message has returned an error: Cannot read properties of undefined (reading 'pipe')
TypeError: Cannot read properties of undefined (reading 'pipe')
    at runFunctionsProxy (file:///opt/homebrew/lib/node_modules/netlify-cli/src/lib/functions/local-proxy.js:39:25)
    at Module.invokeFunction (file:///opt/homebrew/lib/node_modules/netlify-cli/src/lib/functions/runtimes/go/index.js:43:30)
    at NetlifyFunction.invoke (file:///opt/homebrew/lib/node_modules/netlify-cli/src/lib/functions/netlify-function.js:182:47)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async handler (file:///opt/homebrew/lib/node_modules/netlify-cli/src/lib/functions/server.js:169:39)

Response with status 500 in 197 ms.

The lambda is written in go, and comment out to super duper simple:

package main

import (
//	"bytes"
	"database/sql"
//	"encoding/json"
	"errors"
	"fmt"
//	"image"
//	"io"
	"regexp"
	"time"

//	"github.com/google/uuid"
//	"github.com/grokify/go-awslambda"

	"github.com/aws/aws-lambda-go/events"
	"github.com/aws/aws-lambda-go/lambda"

//	"github.com/shrinerp/hokr/internals/cache"
//	"github.com/shrinerp/hokr/internals/shared"
)

func handler(request events.APIGatewayProxyRequest) (*events.APIGatewayProxyResponse, error) {

	var txn string
	action, ok := request.Headers["view"]

	if !ok {
		fmt.Println("List View from the headers")
	}
	switch action {

	case "saveimage":
	case "savestoreimage":
		txn = "I LOVE CATS"
	case "postsave":
		txn = "MEOW"

	}

	// Your server-side functionality
	return &events.APIGatewayProxyResponse{
		StatusCode: 200,
		Headers:    map[string]string{"Content-Type": "application/json"},
		Body:       txn,
	}, nil
}

func main() {
	// Make the handler available for Remote Procedure Call
	lambda.Start(handler)
}

This was working, and now it is not working, what do I do?

2

Couple of questions:

  • What version of CLI are you using?
  • Could you try rolling a few versions ahead and behind to see if a specific version caused this?
  • Does this work in production(that is when deployed)?
3

CLI Version

  System:
    OS: macOS 14.1
    CPU: (11) arm64 Apple M3 Pro
    Memory: 203.03 MB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 21.5.0 - /opt/homebrew/bin/node
    npm: 10.2.4 - /opt/homebrew/bin/npm
  npmPackages:
    netlify-cli: ^17.11.1 => 17.11.1
  npmGlobalPackages:
    netlify-cli: 17.10.1

What version should I roll back to?

Does it work in production? I don’t know. It was all of sudden I have a throttle taking place in production from Cockroach which I am working on resolving with them, and I have this block locally.

4

Interesting…

Based on the stacktrace, the error is coming from: cli/src/lib/functions/local-proxy.ts at main · netlify/cli (github.com) and in the code, we’re already using optional chaining: ?. before .pipe(). So if proxyProcess.stderr is undefined, pipe() should never be called, and thus, the error doesn’t make sense to me.

This part is interesting though. Do you have 2 installations of the CLI? Maybe this was a bug in the older version which might be fixed in the latest one? Try uninstalling the older version.

5

I only have this version of the CLI installed, as it is a new, clean build with a fresh ihstall of the CLI

but… the application was created on a different machine, which had a different CLI version.

I will clear the CLI install and reinstall…

6

I have fully installed netlify-cli and reinstalled it and am still getting the same error.

7

After some tinkering, there was an error the said E2BIG buried in the error stack, which there was an image upload, so I reduced the size of the upload… Boom, no more error.