how to configure access in gitlab projects?

Question

i have a gitlab project and learning how to use the gitlab api , to run a specific job. based on the documentation for gitlab api , i can trigger a particular job via gitlab api, so , first i tried to get all the jobs with job id for a particular project.

curl -X GET -F token=********** -F ref=main https://gitlab.example.com/api/v4/projects/project_id/jobs

I'm getting {message: 401 unauthoried} for this, I'm owner of the project but i still get unauthorized . what permissions do i need to configure , to successfully make this call.

Note - however , if i try to trigger the pipeline for the same project , i don't get unauthorized. the command i use for this is

curl --request POST "https://gitlab.example.com/api/v4/projects/project_id/trigger/pipeline?token=**********&ref=main

sample .gitlab-ci.yml file

build-job:
  stage: build
  script:
    - echo "Hello, $GITLAB_USER_LOGIN!"

test-job1:
  stage: test
  script:
    - python3 myproject/script/mydumbscript.py $arg1 $arg2 $arg3

test-job2:
  stage: test
  script:
    - echo "This job tests something, but takes more time than test-job1."
    - echo "After the echo commands complete, it runs the sleep command for 20 seconds"
    - echo "which simulates a test that runs 20 seconds longer than test-job1"
    - sleep 20

deploy-prod:
  stage: deploy
  script:
    - echo "This job deploys something from the $CI_COMMIT_BRANCH branch."
  environment: production