How to i pass a dynamic variable in an API URL in Artillery.io

Question

I need to run a load test on artillery.io - the api will basically contain a query string as follows:

https://<<thisishowtheurllookslie/username?id=AXXXX1

Basically,

https://<<thisishowtheurllookslike/username?id=AXXXX1 is the record for user AXXXX1
https://<<thisishowtheurllookslike/username?id=AXXXX2 is the record for user AXXXX2
https://<<thisishowtheurllookslike/username?id=AXXXX3 is the record for user AXXXX3
https://<<thisishowtheurllookslike/username?id=AXXXXN is the record for user AXXXXN

I need to run a load test with N number of users - my belief is i need to create a CSV file starting with AXXX1 to AXXXN rows .

How to I configure all this in the yml file?

So far my config looks like this:

config:
  target: https://<<thisishowtheurllookslike/username?id=AXXXX1
  phases:
    - duration: 60
      arrivalRate: 1
    - duration: 300
      arrivalRate: 10

I am unable to understand how to make username as dynamic in the the URL

Answer 1

You should set your base URL in the target, and then set the path in the scenario using variable substitutions, with variables you can set in the Config.

scenarios:
  - flow:
      - get:
          url: "/username?id={{ myVariable }}"

(you can also use querystring instead of setting them in the URL)

You can also load the variable from the csv using the same mechanism and the payload functionality: https://www.artillery.io/docs/reference/test-script#payload---loading-data-from-csv-files