Http2: stream closed occurring again and again - postgresql

While rendering JSON response from API I am getting "http2: stream closed" error many times while loading that API
I didn't used streaming I am just serving json response using c.JSON() function of go-gin
Packages used
go-gin
go-gorm

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MongoDB Data API invalid session error with postman and python

I’m trying to Update/Post to my documents in a MongoDB database through using the Data API via postman, I followed all the steps and filled in all the essential variables and I consistently get that error.
invalid session: error finding user for endpoint
Here it shows that I successfully forked the MongoDB Data API to my Postman collection and filled in all the necessary variables.
First Image - Postman Variables
This is me making the POST request to find a document in my database (this same exact error keeps on showing with all the other endpoints, update, insert, etc…)
Second Image - The Request And The Occurring Error
And these are the header and body of the request showing that the variables were correctly setup and the the request is going through with no problems but I get that same error every time.
Third Image - Header and Body of The Request
So I figured it might be a postman thing so I tried to make the request using Python instead and I got the same exact error there too.
Fourth Image - Python Request
This is the document I am trying to send the requests to.
Fifth Image - The database in MongoDB Compass
And this is my Data API game with the cluster all being setup and given access for both reading and writing.
Sixths Image - The MongoDB Data API Page
So I am not sure what is exactly going on or what am I not seeing.

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Springboot app calling a thirdparty API does not provide the API's 400 Exception JsonResponse, but Postman show the Response, how can I fix it?

In my Springboot App, my local API calls a Thridparty API, format the response and send to the UI.
At a particular usecase I am geting a 400 Exception with a JSON response by calling third party Api directly in Postman which is good, but In my app, when I catch the exception all I see is a 400 Bad Request and I dont get the JSON response.
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JMeter : How to handle asynchronous http post request

I'm trying to automate a POST call where I'm getting multiple responses every 5 seconds.
For example, while uploading a file,
file read......200 OK
Uploading Started.....200 OK
Uploaded......200 OK
And after certain time, when the process is complete on the server side, I get a response saying "Finished Successfully...200 OK".
But in JMeter, connection is closed when first 200 is received.
How can I wait for all the responses conditionally and exit when the desired response is received by the request?
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You can use http://hc.apache.org/httpcomponents-client-ga/ for the HTTP Client library, but ensure you use the same as JMeter.