https://github.com/thma/piserver

Computation of PI with an arbitrary precision made available as an OpenFAAS service
https://github.com/thma/piserver

Last synced: over 1 year ago
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Computation of PI with an arbitrary precision made available as an OpenFAAS service

• Host: GitHub
• URL: https://github.com/thma/piserver
• Owner: thma
• License: apache-2.0
• Created: 2018-05-31T20:19:30.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2023-12-15T17:58:35.000Z (over 2 years ago)
• Last Synced: 2025-02-09T17:32:47.916Z (over 1 year ago)
• Language: Shell
• Size: 10.7 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# PiServer

This is a demo of an OpenFAAS compliant service written in haskell

After running the build.sh script the server will be available in the OpenFAAS UI.

The server expects a positive integer value as input parameter N.

The server will then return PI with a precision of N decimal digits.

(The actual calculation is done the HasBigDecimal library based on Chudnovskis algorithm)

# Ho to Build

- install Openfaas: http://docs.openfaas.com/deployment/docker-swarm/

  (There is also an Kubernetes version: http://docs.openfaas.com/deployment/kubernetes/)

- install OpenFAAS command line interface: http://docs.openfaas.com/cli/install/

- install AlpineHaskell (A minimalistic docker image providing essential runtime libs for haskell programs): https://github.com/thma/AlpineHaskell

- execute PiServer/build.sh

- test installation 

open http://127.0.0.1:8080/ui/ in your browser and click on the "piserver" entry in the left menu.

on the right press on the "invoke" button. You will receive an Response Body: "ERROR: please provide an integer to specify how many decimals of pi you want me to compute"

fill in a positive integer (say 234) into the "Request body" field and press "invoke" again.

This time the Response Body should be PI with your specified accuracy, say: "3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786

".