{"id":20768135,"url":"https://github.com/softwaremill/otterjet","last_synced_at":"2026-03-15T16:22:57.539Z","repository":{"id":209626733,"uuid":"724078703","full_name":"softwaremill/OtterJet","owner":"softwaremill","description":"Visualization of messages from a NATS JetStream server","archived":false,"fork":false,"pushed_at":"2025-01-25T20:48:09.000Z","size":1505,"stargazers_count":39,"open_issues_count":0,"forks_count":1,"subscribers_count":15,"default_branch":"master","last_synced_at":"2025-04-30T12:06:15.249Z","etag":null,"topics":["java","java17","nats","nats-jetstream","nats-messaging","nats-server","nats-streaming"],"latest_commit_sha":null,"homepage":"https://softwaremill.com/introduction-to-otterjet/","language":"Java","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/softwaremill.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"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}},"created_at":"2023-11-27T10:59:21.000Z","updated_at":"2025-04-17T19:48:23.000Z","dependencies_parsed_at":"2024-06-10T03:28:03.771Z","dependency_job_id":"52e2cf50-ac3c-4d8a-bb6f-bbc000da0812","html_url":"https://github.com/softwaremill/OtterJet","commit_stats":null,"previous_names":["sebastianrabiej/jetstreamdrop"],"tags_count":4,"template":false,"template_full_name":null,"purl":"pkg:github/softwaremill/OtterJet","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/softwaremill%2FOtterJet","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/softwaremill%2FOtterJet/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/softwaremill%2FOtterJet/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/softwaremill%2FOtterJet/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/softwaremill","download_url":"https://codeload.github.com/softwaremill/OtterJet/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/softwaremill%2FOtterJet/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":270093073,"owners_count":24525553,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","status":"online","status_checked_at":"2025-08-12T02:00:09.011Z","response_time":80,"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":["java","java17","nats","nats-jetstream","nats-messaging","nats-server","nats-streaming"],"created_at":"2024-11-17T11:35:51.981Z","updated_at":"2026-03-15T16:22:52.516Z","avatar_url":"https://github.com/softwaremill.png","language":"Java","readme":"\u003cp align=\"center\"\u003e\n    \u003cimg src=\"docs/images/otterjet-logo.png?raw=true\"/\u003e\n\u003c/p\u003e\n\n# Welcome!\n\n[![CI](https://github.com/softwaremill/otterJet/workflows/CI/badge.svg)](https://github.com/softwaremill/otterJet/actions?query=workflow%3A%22CI%22)\n\n# OtterJet\n\nOtterJet is a project designed to provide a visualization of messages from a NATS JetStream server. Offering a WEB interface for interacting with NATS JetStream servers.\nThis project is particularly useful for developers who need to monitor traffic during development.\n\n## Prerequisites\n\n- Java 17 or higher\n- NATS JetStream server\n\n## Features\n\n- Reads messages from a NATS JetStream server.\n- Deserializes messages based on the specified mode (protobuf or plaintext for now).\n- Filters messages based on subject, type, and body content.\n- Displays monitoring information in a web interface.\n\n## Setup\n\n1. Clone the repository.\n2. Navigate to the project directory.\n3. Run `mvn clean install` to build the project.\n4. Configure your NATS JetStream server details in the `application.properties` file.\n\n## Configuration\n\nThe following properties need to be set in the `application.properties` file:\n\n- `read.mode`: The mode to use for deserialization (either `proto`, `plaintext` or `avro`).\n- `read.subject`: The subject to read messages from.\n- `read.proto.pathToDescriptor`: The path to the protobuf descriptor file (only required if `read.mode` is set to `proto`).\n- `read.avro.pathToSchema`: The path to the avro schema (only required if `read.mode` is set to `avro`).\n- `read.store.limit`: The maximum number of messages to store in memory. Default - 10000\n- `read.startDate`: Optional date from which to start reading messages.\n\n## Usage\n\nAfter building the project, you can run it using the command `mvn spring-boot:run`.\n\n## Web Interface\n\n### Messages page\n![MessagesPage](docs/images/messages-page.png)\n\n### Monitoring page\n![MonitoringPage](docs/images/monitoring-page.png)\n\n## Troubleshooting\n\nIf you encounter any issues while setting up or running the project, please check the following:\n\n- Ensure that your NATS JetStream server is running and accessible.\n- Verify that the configuration properties in the `application.properties` file are correct.\n\n## Contributing\n\nAll suggestions are welcome :)\n\n## Copyright\n\nCopyright (C) 2023-2024 SoftwareMill [https://softwaremill.com](https://softwaremill.com).","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsoftwaremill%2Fotterjet","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsoftwaremill%2Fotterjet","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsoftwaremill%2Fotterjet/lists"}