{"id":43916813,"url":"https://github.com/zooniverse/caesar","last_synced_at":"2026-02-06T21:34:46.280Z","repository":{"id":37444599,"uuid":"78732666","full_name":"zooniverse/caesar","owner":"zooniverse","description":"Backend automation and orchestration","archived":false,"fork":false,"pushed_at":"2026-01-29T17:15:34.000Z","size":2896,"stargazers_count":13,"open_issues_count":88,"forks_count":12,"subscribers_count":14,"default_branch":"master","last_synced_at":"2026-01-30T05:13:54.919Z","etag":null,"topics":["aggregation","automation","caesar","panoptes-platform"],"latest_commit_sha":null,"homepage":"https://zooniverse.github.io/caesar","language":"Ruby","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/zooniverse.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":"CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2017-01-12T10:12:34.000Z","updated_at":"2026-01-29T17:14:09.000Z","dependencies_parsed_at":"2024-10-18T15:28:47.943Z","dependency_job_id":"8b172dd0-87ca-44a2-8533-c307148e76d2","html_url":"https://github.com/zooniverse/caesar","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/zooniverse/caesar","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zooniverse%2Fcaesar","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zooniverse%2Fcaesar/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zooniverse%2Fcaesar/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zooniverse%2Fcaesar/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/zooniverse","download_url":"https://codeload.github.com/zooniverse/caesar/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/zooniverse%2Fcaesar/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29177553,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-06T20:14:21.878Z","status":"ssl_error","status_checked_at":"2026-02-06T20:14:21.443Z","response_time":59,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["aggregation","automation","caesar","panoptes-platform"],"created_at":"2026-02-06T21:34:46.187Z","updated_at":"2026-02-06T21:34:46.275Z","avatar_url":"https://github.com/zooniverse.png","language":"Ruby","readme":"# README\n\nCaesar is an evolution of the Nero codebase, which is made more generic. In\nessence, Caesar receives classifications from the event stream (a Lambda\nscript sends them to Caesars HTTP API).\n\n* [Documentation](https://zooniverse.github.io/caesar)\n* [Production](https://caesar.zooniverse.org)\n* [Staging](https://caesar-staging.zooniverse.org)\n\n## Development\n\nPrepare the Docker containers:\n\n```\ndocker-compose build\ndocker-compose run --rm app bin/rails db:setup\ndocker-compose run --rm -e RAILS_ENV=test app bin/rails db:create\n```\n\nRun tests with:\n\n```\ndocker-compose run --rm -e RAILS_ENV=test app bin/rspec\n```\n\nOr interactively / manually in a docker shell\n\n```\ndocker-compose run --rm -e RAILS_ENV=test app bash\n# from the bash prompt\nbin/rspec\n```\n\n\nStart a local server with:\n\n```\ndocker-compose up\n```\n\nTo have it listen to the stream:\n\n```\nAWS_REGION=us-east-1 kinesis-tail zooniverse-staging | bin/stream_to_server\n```\n\nOr to override the configuration for a given workflow, create a local file in `tmp/` (or anywhere else, but that directory is ignored by git) and run:\n\n```\nAWS_REGION=us-east-1 kinesis-tail zooniverse-staging | bin/override_workflow_configuration workflow_id tmp/path_to_nero_config.json | bin/stream_to_server\n```\n\n\n## Kinesis / Lambda\n\nPanoptes posts classifications into Kinesis. Caesar has a Lambda script that\nreads in from Kinesis and then POSTs those into Caesar's API. Docs on how to\nchange that lambda script are in the\n[kinesis-to-http](https://github.com/zooniverse/caesar/tree/master/kinesis-to-http)\ndirectory.\n\n### Mutation tests\n\n```\nRAILS_ENV=test bundle exec mutant -r ./config/environment --use rspec Reducers::ExternalReducer\n```\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzooniverse%2Fcaesar","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fzooniverse%2Fcaesar","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fzooniverse%2Fcaesar/lists"}