json-stream | New line-delimeted JSON parser with a stream interface | JSON Processing library

I'am processing a kafka JSON-stream in Spark Structured Streaming. Processing as micro batches, can i use accumulators with streaming dataframes?

I need to build a new version of a javascript Node.js app. I have the source code and the macOS and Windows installers for the previous version of the app.

How can I find what version of Node.js was used to build the previous version of the app, so I can use the same Node.js version to build my new version of the app?

I understand that version of Node.js could have been different when building the macOS version and the Windows version. Ideally, I'd like to know what version of Node.js was used for each platform, but if I can get at least one that would be sufficient for my needs.

UPDATE: package.json:

I have an year old VueJS project that runs on v3.9.2 of @vue/cli-service. I have been running it on https://localhost:8000 using the --https flag of vue-cli-service command.

Now, I updated my @vue/cli-service package to v3.12.1. When I run npm run serve, I get the following error in Chrome. There is no button to proceed to localhost.

Can anyone tell me what has changed in Vue cli service that this error is showing up and how can I fix this error?

Here's my package.json

I have a huge object that serves as a map with 2,7 million keys. I attempt to write the object to the file system, in order to persist it and not recompute it every time I need it. At another step, I need to read the object again. I need to have access to the entire object in memory, as it needs to serve as a map.
For writing, I convert the object to an array and stream it to the file system with the function below. The reason why I convert it to an array first is that it seems to be significantly faster to stream an array instead of an object. The writing part takes about a minute, which is fine. The output file has a size of 4,8GB.
The problem I'm facing is when attempting to read the file. For this, I create a read stream and parse the content. However, for some reason, I seem to be hitting some sort of memory limit. I used various different approaches for reading and parsing, and they all seem to work up until around 50% of the data is read (at this time the node process on my machine occupies 6GB memory, which is slightly below the limit I set). From then, the reading time significantly increases by factor 10, probably because node is close to using the maximum allocated memory limit (6144MB). It feels like I'm doing something wrong.
The main thing that I don't understand is why writing is not a problem, while reading is, even though during the write step, the entire array is kept in memory as well. I'm using node v8.11.3.

So to summarize:

• I have a large object I need to persist to the file system as an array using streams
• Writing works fine
• Reading works until around 50% of the data is read, then reading time increases significantly

How can I read the file more performantly?

I tried various libraries, such as stream-to-array, read-json-stream, JSONStream

example of an object to write:

I currently have a 700M file and always end up with a Memory Limit when I try to read it (purpose: import data to FireStore using firestore nodejs sdk).

I tried the following libraries:

• json-stream (https://github.com/uhop/stream-json)
• JSONStream (https://github.com/dominictarr/JSONStream)

I am trying to use Node.js WebSockets with sharedb. Here is what I have so far

I've read somewhere that I should use the library salsify/jsonstreamingparser to open a big json file but it's giving me the same error as with json_decode:

I have to obtain response from server which is x-json-stream

Seems like it is seria of events emmited by server. I have to read it over socket though it fails with exception

Here in my code everything works fine but the last statement seems to be wrong. It sends back an empty JSON-stream. I debugged and tried error handling on the statements but everything is fine (I removed error handling for better reading) I searched a lot and I found a lot but either I'm to stupid to use google or there is no help for my specific question (could bet, first one is correct but please don't be angry with me :-))

My Code is