After having been using this this CLI project for a while I thought, why not turn it into a function?

The structure of this project is based on [OpenFaaS with MongoDB] (https://github.com/alexellis/mongodb-function) from @alexellisuk

1. Clone this repository

$ git clone https://github.com/padiazg/of-fn-calls-per-period.git

2. Replace "padiazg/" prefix from Docker Hub in stack.yml with your own account

3. Build/deploy Create new function, make sure to specify call-count as the name of your function.

$ faas-cli new call-count --lang node

Now you can build/deploy

faas-cli build && faas-cli deploy

of-fn-calls-per-period

1. Create deploy.yml

provider:
  name: faas
  gateway: http://127.0.0.1:8080

functions:
  calls-per-period:
    image: padiazg/of-fn-calls-per-period
    environment:
      write_timeout: 10s
      read_timeout: 10s
      prometheus: http://your_prometheus_ip:9090
      timezone: America/Asuncion        # here you sould put your timezone

2. Deploy with faas-cli Deploy your function using faas-cli

faas-cli deploy

Parameters must be passed in JSON format:
Examples:

{"start": "2018-03-30", "end": "2018-07-31"}
{"start": "2018-03-30", "end": "2018-07-31", "format": "json"}
{"start": "2018-03-30", "end": "2018-07-31", "step": "3h", "format": "table"}

• start: Start day for the query (mandatory).
• end: End day for the query (mandatory).
• step: Period of time in wich the results are grouped.
• format: Format of the output. Defaults to 'table'.
  Posible values are:
  • table
  • json

Output as ascii-table.

• Select Text
• Request body: {"start": "2018-03-30", "end": "2018-07-31"}

Output as JSON.

• Select JSON
• Request body: {"start": "2018-03-30", "end": "2018-07-31", "format": "json"}