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Redis Weighted Pool\nThis is a simple Promise based multi-channel weighted round robin pool implementation that leverages Redis sorted set and list.\n\n# Requirements\nYou will need Redis server running.\n\n# Installation\n```bash\nnpm install redis-weighted-pool\nyarn add redis-weighted-pool\n```\n\n# Test\nThe test script in `package.json` preprocesses the `.ts` file and then executes.\n\n`npm test`\n\n# Usage\nThe source was written in Typescript, yet it compiles to Javascript (`npm run build`). You can use in ES5 or later supported environments. The following code snippets are implemented in the `__tests__` folder.\n\n## Quick start (Node)\n```javascript\nconst pool = require('redis-weighted-pool');\n\nconst config = pool.RedisConfig(\"localhost\", 6379, null, null);\n\nconst myPool = new pool.RedisWeightedPool(config);\n\nmyPool.length(\"myChannel\")\n  .then(result =\u003e {\n    console.log({result});\n  })\n  .catch(error =\u003e {\n    console.error({error});\n  });\n```\n\n## Optional with existing client\nIf you already have a program with a `RedisClient` you can pass the client as an optional second parameter.\n```javascript\nconst myPool = new pool.RedisWeightedPool(null, client);\n\nmyPool.length(\"myChannel\")\n  .then(result =\u003e {\n    console.log({result});\n  })\n  .catch(error =\u003e {\n    console.error({error});\n  });\n```\n\n## Typescript\n### Initialization\n```typescript\nimport {RedisConfig, IWeightedPool, RedisWeightedPool} from 'redis-weighted-pool';\n\nlet config: RedisConfig = new RedisConfig(\n    \"localhost\",\n    6379,\n    null,\n    null\n);\n\nlet myPool : IWeightedPool\u003cstring\u003e = new RedisWeightedPool(config);\n```\n\n### Add peers\n```typescript\nPromise.all([\n    myPool.addPeer(\"channelId\", \"peerId1\", weight1),\n    myPool.addPeer(\"channelId\", \"peerId2\", weight2),\n    myPool.addPeer(\"channelId\", \"peerId3\", weight3)\n])\n    .then(values =\u003e {\n        done();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n### Get next peer (weighted round robin)\n```typescript\nmyPool.getNextPeer(\"channelId\")\n    .then(result =\u003e {\n        // expect one of peer Ids to be returned\n        expect(result).toBeDefined();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n### Remove peer from channel\n```typescript\nmyPool.removePeer(\"channelId\", \"peerId1\")\n    .then(result =\u003e {\n        // expect peer count to be decreased\n        expect(result).toBeDefined();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n### Reset pool for channel\n```typescript\nmyPool.reset(\"channelId\")\n    .then(result =\u003e {\n        done();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n### Check if empty\n```typescript\nmyPool.isEmpty(\"channelId\")\n    .then(result =\u003e {\n        expect(result).toBeFalsy();\n        done();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n### Get pool length\n```typescript\nmyPool.length(\"channelId\")\n    .then(result =\u003e {\n        expect(result).toEqual(3);\n        done();\n    })\n    .catch(error =\u003e {\n        done.fail(error);\n    });\n```\n\n# Contributing\nI haven't thought that far ahead yet. I needed this for my project and wanted to give back. ;-)\n\n# License\nMIT (if you enhance it, fork and PR so the community benefits)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmikesparr%2Fredis-weighted-pool","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmikesparr%2Fredis-weighted-pool","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmikesparr%2Fredis-weighted-pool/lists"}