@useoptic/optic

Optic

Quick start guide

Install optic

npm i -g @useoptic/optic

Initialize an optic.yml config file

optic init
# this will create an optic.yml file with references to openapi files detected in the git repo

Run a diff between two OpenAPI files:

optic diff <path_to_file_1> <path_to_file_2>

Analyzing changes between OpenAPI specs

Optic helps you analyze changes in your OpenAPI spec. The diff command can be used to generate a changelog between two specs. By default, Optic checks for breaking changes. There are a few ways you can run the diff command.

Running a diff between two files on your file system

optic diff specs/openapi-spec-v0.yml specs/openapi-spec-v1.yml

Running a diff against a file on the master branch

optic diff master:specs/openapi-spec.yml specs/openapi-spec.yml

# or

optic diff specs/openapi-spec.yml --base master

Running a diff on a file from your optic.yml

# runs a diff against the users-api id
optic diff --id users-api --base master

Additional options:

• --no-checks turns off breaking change detection against the changed files
• --web opens a web page with the changes that ran (recommended for a more UI rich changelog experience).

Setup Optic in CI

Optic helps you review OpenAPI specs and enforce API standards. Sign up on app.useoptic.com to get a token and get started.

GitHub Actions

Optic comes with a GitHub Action for easy setup and configuration. The Optic GitHub Action can be configured in your .github/workflows/optic-ci.yml file. An example snippet is listed below.

name: Optic

on: [pull_request]

jobs:
  optic-run:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: optic run
        uses: opticdev/github-action@v1
        with:
          token: ${{ secrets.OPTIC_TOKEN }} # You will need to connect up your secret here
          base: ${{ github.event.pull_request.base.ref }}

Other CI Providers

You can manually connect up Optic using any other CI provider by calling optic directly. An example implementation in bash is listed below, where each step command can be broken out into different CI steps.

# requires nodeJS installed
# install optic-ci in your CI runner
npm i -g @useoptic/optic

# create the context - these will differ between CI providers
optic cloud create-manual-context \\
  --owner <owner>  \\ # the repository owner (in github, this can be an organization or user)
  --repo <repo>  \\ # the repository name
  --pull_request <pull_request>  \\ # the pull request number that this run is associated with
  --run <run>  \\ # the run number that this run is associated with
  --commit_hash <commit_hash>  \\ # the commit hash that this run is associated with
  --branch_name <branch_name>  \\ # the branch name that this run is associated with
  --user <user> # the user that triggered this run

# trigger the optic runner
# base is the branch that you are comparing the OpenAPI Changes against - this defaults to 'origin/master'
OPTIC_TOKEN=<token> optic cloud run --base <base ref>