Not able to load data using neptune bulk load- Credential should be scoped to a valid region, not 'us-east-1 error shows

Question

When I Submit api call get initiate successfully with status 200 ok using this command. 
Command:
awscurl -X POST --service neptune-db -H 'Content-Type: application/json' --region us-east-2 \
https://omdena-kyield-database-1.cluster-c4brigvg3m9m.us-east-2.neptune.amazonaws.com:8182/loader -d' 
    {
        "source" : "s3://kyieldgraphdboutput/Unsaved/2022/12/13/4a873928-9910-47b0-85ca-de593ace4f4a.csv", 
        "format" : "csv", 
        "iamRoleArn" : "arn:aws:iam::959061167427:role/NeptuneLoadFroms3", 
        "region" : "us-east-2", 
        "failOnError" : "FALSE"
}'
Output:
{
    "status" : "200 OK",
    "payload" : {
        "loadId" : "b4627762-11c1-4aa8-8bbe-3fb70ef850ac"
    }
}

But when able to check Monitor the Loading Process using this command then I am able to get this error.

Command: 
awscurl --service neptune-db  'https://omdena-kyield-database-1.cluster-c4brigvg3m9m.us-east-2.neptune.amazonaws.com:8182/loader/b4627762-11c1-4aa8-8bbe-3fb70ef850ac'

Error:
{"code":"AccessDeniedException","requestId":"e5a7a210-fd31-4263-90e7-c2154be1e00e","detailedMessage":"Credential should be scoped to a valid region, not 'us-east-1'. "}

requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://*****:8182/loader/33aaf4f9-54b5-4f7b-8b39-b00cfb379397

Can anyone please help me with this ?

Answer

On this command here:
```
awscurl --service neptune-db 'https://omdena-kyield-database-1.cluster-c4brigvg3m9m.us-east-2.neptune.amazonaws.com:8182/loader/b4627762-11c1-4aa8-8bbe-3fb70ef850ac'
```
You still need to add the appropriate region to sign the request:
```
--region us-east-2
```
So in total:
```
awscurl --service neptune-db 'https://omdena-kyield-database-1.cluster-c4brigvg3m9m.us-east-2.neptune.amazonaws.com:8182/loader/b4627762-11c1-4aa8-8bbe-3fb70ef850ac' --region us-east-2
```

Not able to load data using neptune bulk load- Credential should be scoped to a valid region, not 'us-east-1 error shows

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