Example GraphQL call towards GitHub using curl and jq

README.md

This is an example how to do GraphQL queries in a somewhat sane way in bash using curl and jq.

The example does an query towards GitHub to fetch the commit SHAs of open pull requests for a specific repository.

The example needs the environment variables REPO_OWNER, REPO_NAME and GITHUB_TOKEN to be set.

github_graphql_example.sh

jq -cn '
  {
    query: $query,
    operationName: $operationName,
    variables: {
      owner: $owner,
      repo: $repo
    }
  }' \
  --arg query '
    query getPullRequestOids($owner: String!, $repo: String!) {
      repository(owner: $owner, name: $repo) {
        pullRequests(states: OPEN, first: 100) {
          nodes {
            headRefOid
          }
        }
      }
    }' \
    --arg operationName getPullRequestOids \
    --arg owner "$REPO_OWNER" \
    --arg repo "$REPO_NAME" \
| curl \
  --silent \
  --header "Authorization: token $GITHUB_TOKEN" \
  --header "Content-Type: application/json" \
  --data @- \
  https://api.github.com/graphql \
| jq -r '.data.repository.pullRequests.nodes | .[] | .headRefOid'