{"id":20448889,"url":"https://github.com/koslib/go-nats-demo","last_synced_at":"2026-06-09T07:31:23.900Z","repository":{"id":144101207,"uuid":"238694482","full_name":"koslib/go-nats-demo","owner":"koslib","description":"Super basic nats example project","archived":false,"fork":false,"pushed_at":"2020-08-27T14:48:37.000Z","size":344,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2026-05-26T23:25:02.244Z","etag":null,"topics":["go","nats","nats-messaging"],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/koslib.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null}},"created_at":"2020-02-06T13:24:49.000Z","updated_at":"2020-08-27T14:48:37.000Z","dependencies_parsed_at":"2024-01-05T04:57:50.622Z","dependency_job_id":null,"html_url":"https://github.com/koslib/go-nats-demo","commit_stats":null,"previous_names":["koslibpro/go-nats-demo"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/koslib/go-nats-demo","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/koslib%2Fgo-nats-demo","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/koslib%2Fgo-nats-demo/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/koslib%2Fgo-nats-demo/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/koslib%2Fgo-nats-demo/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/koslib","download_url":"https://codeload.github.com/koslib/go-nats-demo/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/koslib%2Fgo-nats-demo/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":34096950,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-06-09T02:00:06.510Z","response_time":63,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"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":["go","nats","nats-messaging"],"created_at":"2024-11-15T10:37:29.094Z","updated_at":"2026-06-09T07:31:23.877Z","avatar_url":"https://github.com/koslib.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"# go-nats-demo\n\nMe, playing around with [nats](https://nats.io/).\n\nJust a simple playground for exploring nats, try proto code and experiment before actually using something in prod.\n\nIn the `main.go` file you can find examples for:\n\n1. Setting up a consumer/producer for an async example\n2. Setting up a request/reply model example for synchronous messages consumption\n\n\n## Running it \nFor running locally a nats server through docker: \n```\ndocker run --name nats -p 6222:6222 -p 4222:4222 -p 8222:8222 nats:latest\n```\n\nFor a demonstration of the whole functionality (just logs printing, nothing fancy), you can run:\n```\ndocker-compose up\n```\n\nand remember to rebuild if you change the code while experimenting:\n```\ndocker-compose up --build\n```\n\nand when you're done tear down:\n```\ndocker-compose down\n```\n\n\u003e Note: the docker-compose setup includes two nats services, to showcase a cluster example.\n\n\n## Nats-operator\n\n### Deploy dummy service on k8s\n\n#### Deploy with custom helm chart \n\n```\nhelm upgrade --install test http://www.koslib.com/mycharts/servicetpl-0.5.3.tgz -f .chart/values.yaml --wait --set image.tag=\u003cyour image tag\u003e\n``` \n\n#### Deploy with simple kubernetes deployment\n\n```bash\nkubectl create deployment test --image=\u003cyour local image name and tag here\u003e\n```\n\n### Deploying the nats operator and cluster \n\nnats-operator [link](https://github.com/nats-io/nats-operator). Will do the namespace-scope installation.\n\nWhen the operator has been installed, create a nats cluster:\n```bash\ncat \u003c\u003cEOF | kubectl create -f -\napiVersion: nats.io/v1alpha2\nkind: NatsCluster\nmetadata:\n  name: example-nats-cluster\nspec:\n  size: 1\n  version: \"1.3.0\"\nEOF\n```\n\nAlso, install [nats streaming operator](https://github.com/nats-io/nats-streaming-operator) and create a nats streaming cluster:\n\n```bash\necho '\n---\napiVersion: \"streaming.nats.io/v1alpha1\"\nkind: \"NatsStreamingCluster\"\nmetadata:\n  name: \"example-stan\"\nspec:\n  size: 3\n  natsSvc: \"example-nats-cluster\"\n  config: {}\n' | kubectl apply -f -\n```\n\n\n## key takeaways\n\n* Sync messages support custom limits for what kind of overhead a client will get (eg. limit the amount of messages or the size of them)\n* Async messages can define their binding functions\n* Timeouts are configurable in pretty much anything\n* Simple and clean Go APIs\n* Wildcards support in topics/subjects\n* Messages can be acked manually\n* Message requeue \n* Message persistence supported through in-memory, file or sql stores (nats-streaming only)\n* (k8s version) TLS support\n* (k8s version) separate accounts and permissions support via k8s service accounts\n* (k8s version) official helm chart for operator (good for prod use-cases)\n\n## Disclaimer\n\nThis is a project only for demo-ing and showcase purposes. This is not an one-size-fits-all. Every use-case is \ndifferent. I'd be happy to help if I can, just get in touch with me on [Twitter](https://www.twitter.com/koslib).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkoslib%2Fgo-nats-demo","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkoslib%2Fgo-nats-demo","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkoslib%2Fgo-nats-demo/lists"}