How to save curl output in gitlab variable?

Question

For a project we would like to call an API and save the result of this curl in a variable.

The pipeline is built like this:

stages:
  - download

scan:
  stage: download
  image: ubuntu
  variables:
    TOKEN: 
  
  script:

    - apk add curl
    - apk add jq
    
    - TOKEN=$('curl -H "Content-Type: application/json" -d "{\"username\":\"$USER", \"password\":\"$PWD"}" https://example.org/api2/authenticate | jq .token ')
    #- echo $TOKEN

I got this error:

This GitLab CI configuration is invalid: jobs:scan:script config should be a string or a nested array of strings up to 10 levels deep.

The curl command (removed from the $(), but kept the single quotes to wrap the double quotes) works regularly and returns the string with the token inside. The only problem turns out to be encapsulating the result in a variable. What can be done?

Thank you.

Why did you add single quotes? Those prevent the command from running. — tripleee
– tripleee, Commented Feb 16, 2022 at 19:00

Tolis Gerodimos · Accepted Answer · 2022-02-16 18:26:13Z

8

Try instead of this

- TOKEN=$('curl -H "Content-Type: application/json" -d "{\"username\":\"$USER", \"password\":\"$PWD"}" https://example.org/api2/authenticate | jq .token ')

The following

- |
  TOKEN=$(curl -H "Content-Type: application/json" -d "{\"username\":\"$USER\", \"password\":\"$PWD\"}" https://example.org/api2/authenticate | jq .token)

P.S. I would suggest begin by running

- |
  curl -H "Content-Type: application/json" -d "{\"username\":\"$USER\", \"password\":\"$PWD\"}" https://example.org/api2/authenticate

In order to debug the curl command output, before running jq

edited Feb 16, 2022 at 18:26

answered Feb 16, 2022 at 17:18

Tolis Gerodimos

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2 Comments

George Hat Over a year ago

Super! Thank you, it works. can you explain me the reason?

Tolis Gerodimos Over a year ago

If it indeed works please approve the answer to help future users, so they could more easily find the solution I will also update the answer with an explanation

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