Serverless NumPy

Simple AWS Lambda function that wraps the popular python library, NumPy.

Usage

Input

The AWS Lambda function event expects an JSON dictionary with two entries: 'method' and 'arguments'.

• method - String - The name of the NumPy method to invoke
• arguments - Array - An ordered array of arguments to pass to the method.

{
  "method": "some_method",
  "arguments": [
    1,
    2,
    3
  ]
}

Output

The return JSON dictionary will contain a single entry: 'result' holding the result of the computation. If an error occurs, the function will return the AWS Lambda error object.

{
  "result": 123.456
}

Examples

Computing future value

{
  "method": "fv",
  "arguments": [
    0.004166666666666666,
    120,
    -100,
    -100
  ]
}

Computing the net present value of a cash flow series.

{
  "method": "npv",
  "arguments": [
    0.281,
    [
      -100,
      39,
      59,
      55,
      20
    ]
  ]
}