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NorJS Event Service\n\nThis is a local service which passes on events to \n[event servers](https://github.com/norjs/event-server) and \n[observers](https://github.com/norjs/event).\n\n### Design\n\nIt is a NodeJS service which has one or more configured top level event servers. \n\nLocal observers can connect to it over a UNIX socket file.\n\nEvent must be triggered on only one top level server, unless the server is unavailable.\n\nCommunication between the service and a top level server is implemented using either a long \npolling HTTP(S) connection (if the server cannot connect to the service directly) or direct \ntwo-way HTTP(S)/UNIX-Socket connection (if connection is possible both ways).\n\nCommunication between the service and observers is implemented over a UNIX socket file with \nHTTP long polling.\n\n### Install\n\n`npm install -g @norjs/event-service`\n\n### Usage\n\n#### Start a service on `./socket.sock`:\n\n```\nNODE_LISTEN=socket.sock \\\nnor-event-service\n```\n\n#### Wait for an event:\n\n```\nif NODE_CONNECT=/path/to/socket.sock nor-event --wait=foo; then\n  echo Event happened\nelse\n  echo Timeout happened\nfi\n```\n\n#### Trigger an event:\n\n```\nNODE_CONNECT=/path/to/socket.sock nor-event --trigger=foo --payload='{\"hello\":\"world\"}'\n```\n\n#### Start a service on `./socket.sock` with configured types:\n\n```\nNOR_EVENT_LOAD_TYPES='./types.js' \\\nNOR_EVENT_PAYLOAD_TYPES='{\"my-resource:created\": \"MyResourceDTO\"}' \\\nNODE_LISTEN=./socket.sock \\\nnor-event-service\n```\n\nAnd define your types using JSDoc-style in a file named `./types.js`: \n\n```js\nconst TypeUtils = require('@norjs/utils/Type');\n\n/**\n * @typedef {Object} MyResourceDTO\n * @property {number} id - My resource id\n * @property {string} name - My resource name\n * @property {boolean} deleted - Deleted or not?\n * @property {Array.\u003cMyResourceItemDTO\u003e} items - My items\n */\nTypeUtils.defineType(\n    \"MyResourceDTO\", \n    {\n        \"id\": \"number\",\n        \"name\": \"string\",\n        \"deleted\": \"boolean\",\n        \"items\": \"Array.\u003cMyResourceItemDTO\u003e\"\n    }\n);\n\n```\n\nYou can use this file from your own application. It also integrates to WebStorm's \nquick documentation, too, since it is standard JavaScript and JSDoc.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnorjs%2Fevent-service","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnorjs%2Fevent-service","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnorjs%2Fevent-service/lists"}