go-calc-faas

Learning GCP FaaS by implementing a simple calculator logic ( Add | Sub | Mul | Div )

Available Functions

• Add2
• Sub2
• Mul2
• Div2

How funcs are deployed

using gcloud sdk, I enter the command: gcloud functions deploy <function_name> --runtime=go113 --trigger-http --allow-unauthenticated

However, in the future, using cloudbuild.yaml + build triggers would be way more efficient example steps:

• name: 'gcr.io/google.com/cloudsdktool/cloudsdk' args:
  • functions
  • deploy
  • <function_name>
  • --runtime=go113
  • --region=<function_region>
  • --source=<function_source_code>
  • --trigger-http

Func Call Example

CURL

curl -X POST <function_url> -H "Content-Type:application/json" -d '{"a": <float64>, "b": <float64>}'

POSTMAN

• METHOD: POST
• URL: <function_url>
• HEADERS: KEY:Content-type VALUE: application/json
• BODY: raw --> {"a": <float64>, "b": <float64>}
• SEND

EXPECTED RESPONSES -- no json for now

• A + B = %v | Invalid input + Bad Request
• A - B = %v | Invalid input + Bad Request
• A * B = %v | Invalid input + Bad Request
• A / B = %v | Invalid input + Bad Request | Division by zero