sweep | file INSTALL for building instructions

I have a react application (Node back end) running on Heroku (free option) connecting to a MongoDB running on Atlas (also free option). When I connect the application from my local machine to the Atlas DB all is fine and data retrieved (all 108 K records) in about 10 seconds, smaller amounts (4-500 records) of data in much less time. The same request from the application running on Heroku to the Atlas DB fails. The application running on Heroku can retrieve a small number of records (1-10) from the same collection of (108 K records), in less than a second. As soon as I try to retrieve a couple of hundred records the system fails. Below are the logs. I included the section of the logs that show a successful retrieval of 1 record and then failing on the request for about 450 records.

I have three questions:

1. What is the cause of the issue?
2. Is there a work around in the free option of Heroku?
3. If there is no work around in the free option, what Heroku pay level will I need to get to and what steps will I need to take to get this working? I will probably upgrade in the future but want to prove all is working before going in that direction.

Logs:

I was able to run my react app locally without issues, however when i deployed app to heroku I got OOM errors. It's not the first time I deploy the app, however this time I add OKTA authentication which apparently cause this issue. Any advise on how to resolve this issue will be appreciated.

I am having problem with the memory when I try to start my react app with npm start. The error says

I have a normal progressBar, but I need the progress to move from right to left instead of left to right. I've tried using

I got the following problem. When user register he will be on a page, where I show a message like check your Email account. And when user check his account and confirm his mail he automatically get to homepage. So far so good. But when user press register button an get mail and reload the page he get also inside homepage without confirm his mail. I trie this

Is there a algorithm in STL that will sweep two (equally sized) ranges and call a function for each pair of entries?

std::equal() and std::transform() seem to follow this notion, but they are not that expressive when the intention is to, say, calculate the sum of difference squares of two vectors:

I want to delete the documents from a collection(Collection1) which are not matching with other collection(Collection2).

collection1 document - {_id: , items: [{key:'key', ...}}]

collection2 document - {_id: 'key', action: {key1:'key1', ...}}, {_id: 'non_matching_key', action: {key1:'key1', ...}}

Delete all the documents from collection2, where items.key in collection1 is not matching with _id in collection2. with reference to the above example, a document with key-value 'non_matching_key' should be delete from collection2. There would be similar documents in collection2 like the one with _id value 'non_matching_key'.

The approach I thought was for mark and sweep.

• I will add the column in collection2 documents for matching ids(in collection2 with items.key in collection1). This is mark step
• Delete all the documents from collection2 where newly added column do not exists. This is sweep step.

Could you please advise if there is a better way of doing this?

Thanks,

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Before switching to Flutter 2, I was using an old version of SharedPreferences without problems, and now I have the latest version.I was able to store values of type int in a separate class that I use from all aspects of the application, but after moving and updating all attempts to save the values, I have the following problem: