Pass current timestamp as POST request body in AWS API Gateway call to AWS Lambda
I have below scenarios:
1) AWS API Gateway POST call to AWS Lambda with a request body as
{"body : 'some values'}
2) AWS Lambda performs come calculations and inserts input data and calulated value into DynamoDB.
The issue is, these are runtime calculations and there are cases where input data (total 9 values) might come same with any one of the value different. I want all these values to be inserted into DynamoDB.
If I keep 'ID' as primary index, the input replaces old input (even though some other value is different in the input).
Solution I tried:
I added 'datetime' field as primary index of my table and calculated 'datetime' as now() in lambda function (python 3).
However this datetime give timestamp when the lambda function was saved which again replaces my old values with new one in DynamoDB.
I tried sending POST request with as below:
{"data":"some_value",
"timestamp":"$context.requestTime"
}
This is not resolving $context.requestTime to its value and just prints this as string as it is.
Thanks in advance.
amazon-web-services post aws-lambda amazon-dynamodb aws-api-gateway
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
add a comment |
I have below scenarios:
1) AWS API Gateway POST call to AWS Lambda with a request body as
{"body : 'some values'}
2) AWS Lambda performs come calculations and inserts input data and calulated value into DynamoDB.
The issue is, these are runtime calculations and there are cases where input data (total 9 values) might come same with any one of the value different. I want all these values to be inserted into DynamoDB.
If I keep 'ID' as primary index, the input replaces old input (even though some other value is different in the input).
Solution I tried:
I added 'datetime' field as primary index of my table and calculated 'datetime' as now() in lambda function (python 3).
However this datetime give timestamp when the lambda function was saved which again replaces my old values with new one in DynamoDB.
I tried sending POST request with as below:
{"data":"some_value",
"timestamp":"$context.requestTime"
}
This is not resolving $context.requestTime to its value and just prints this as string as it is.
Thanks in advance.
amazon-web-services post aws-lambda amazon-dynamodb aws-api-gateway
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
add a comment |
I have below scenarios:
1) AWS API Gateway POST call to AWS Lambda with a request body as
{"body : 'some values'}
2) AWS Lambda performs come calculations and inserts input data and calulated value into DynamoDB.
The issue is, these are runtime calculations and there are cases where input data (total 9 values) might come same with any one of the value different. I want all these values to be inserted into DynamoDB.
If I keep 'ID' as primary index, the input replaces old input (even though some other value is different in the input).
Solution I tried:
I added 'datetime' field as primary index of my table and calculated 'datetime' as now() in lambda function (python 3).
However this datetime give timestamp when the lambda function was saved which again replaces my old values with new one in DynamoDB.
I tried sending POST request with as below:
{"data":"some_value",
"timestamp":"$context.requestTime"
}
This is not resolving $context.requestTime to its value and just prints this as string as it is.
Thanks in advance.
amazon-web-services post aws-lambda amazon-dynamodb aws-api-gateway
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
I have below scenarios:
1) AWS API Gateway POST call to AWS Lambda with a request body as
{"body : 'some values'}
2) AWS Lambda performs come calculations and inserts input data and calulated value into DynamoDB.
The issue is, these are runtime calculations and there are cases where input data (total 9 values) might come same with any one of the value different. I want all these values to be inserted into DynamoDB.
If I keep 'ID' as primary index, the input replaces old input (even though some other value is different in the input).
Solution I tried:
I added 'datetime' field as primary index of my table and calculated 'datetime' as now() in lambda function (python 3).
However this datetime give timestamp when the lambda function was saved which again replaces my old values with new one in DynamoDB.
I tried sending POST request with as below:
{"data":"some_value",
"timestamp":"$context.requestTime"
}
This is not resolving $context.requestTime to its value and just prints this as string as it is.
Thanks in advance.
amazon-web-services post aws-lambda amazon-dynamodb aws-api-gateway
amazon-web-services post aws-lambda amazon-dynamodb aws-api-gateway
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
asked Nov 15 '18 at 9:42
Rohan HodarkarRohan Hodarkar
7317
7317
add a comment |
add a comment |
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