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related to API key expiry, restrictive hours of availability, data limits, service downtime, and fees.\n\n## Usage\n\n```bash\nyarn add market-faker\n```\n\n```javascript\nimport market from 'market-faker'\n\nconst foo = market({\n  name: 'Foobar PLC',\n  opening: 1271.1,\n})\n\nconsole.log(foo.snapshot.sell)\n// -\u003e 1271.2\n\nfoo.subscribe(market =\u003e {\n  console.log(market.sell)\n  // -\u003e 1270.6\n})\n```\n\n# Characteristics of a Market\n* Prices tick at random intervals\n* Only the properties that have changed come back in the `subscribe` handlers\n* The initial market properties are available as `market.snapshot`\n* `buy` price and `sell` price are a small but random distance apart. They start either side of the `opening`\n* `change` is the difference from the `buy` and the `opening`\n* `changePercentage` shows the change as a percentage of the `opening`\n* `high` is the maximum a `buy` price has been\n* `low` is the lowest the `sell` price has been\n* Historical data for any existing property of the market can be specified with a `history` object. e.g. The following would include the last 3 buy prices in the subscribable data:\n\n```javascript\nconst foo = market({\n  name: 'Foobar PLC',\n  opening: 1271.1,\n  history: {\n    buy: 3,\n  },\n})\n\nfoo.subscribe(market =\u003e {\n  console.log(market.history.buy)\n  // -\u003e [1270.6, 1271.1, 1269.3]\n})\n\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjoeegan%2Fmarket-faker","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjoeegan%2Fmarket-faker","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjoeegan%2Fmarket-faker/lists"}