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Rules JSON must be an object\n1. Must start with AND or OR which takes array of rule\n 1. Single Rule Criteria\n ```\n {\n AND: [ Criteria1 ]\n }\n ```\n 2. Multiple Rule Criteria --> Criteria 1 and 2 must be satisfied\n ```\n {\n AND: [ Criteria1, Criteria2 .. ]\n }\n ```\n 3. Multiple Levels of Rules --> Criteria 1 & 2 must be satisfied and either Criteria3 or Criteria4 must be satisfied\n ```\n {\n AND: [\n {\n AND: [ Criteria1, Criteria2 ...]\n },\n {\n OR: [Criteria3, Criteria4 ..]\n }\n ]\n }\n ```\n1. Each Criteria must be an object \n 1. The key in criteria is an operator and value defines the metadata required for the operator to work
Examples of Criteria\n ```json\n { \n \"between\": { \n \"min\": \"10\", \n \"max\": \"20\", \n \"attribute\": \"discount\" \n }\n }\n ```\n ```json\n { \n \"in\": { \n \"value\": [\"C\",\"Javascript\",\"Python\"], \n \"attribute\": \"lang\"\n }\n }\n ```\n 1. List of all criteria given below\n\n | Operator | Operator Property | Description | Example | |\n |------------------|---------------------|--------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------|---|\n | between | min, max, attribute | Check if the property mentioned in attribute has value between min and max | ``` { \"between\" : { \"min\" : \"10\" , \"max\" : \"20\" , \"attribute\" : \"discount\" }} ``` | |\n | lessThan | value, attribute | Check if the property mentioned in attribute has number less than value | ``` { \"lessThan\" : { \"value\" : \"80\" , \"attribute\" : \"price\" } } ``` | |\n | lessThanEqual | value, attribute | Check if the property mentioned in attribute has number less than or equal value | ``` { \"lessThanEqual\" : { \"value\" : \"80\" , \"attribute\" : \"price\" } } ``` | |\n | greaterThan | value, attribute | Check if the property mentioned in attribute has number greater than value | ``` { \"greaterThan\" : { \"value\" : \"80\" , \"attribute\" : \"price\" } } ``` | |\n | greaterThanEqual | value, attribute | Check if the property mentioned in attribute has number greater than or equal value | ``` { \"greaterThanEqual\" : { \"value\" : \"80\" , \"attribute\" : \"price\" } } ``` | |\n | equal | value, attribute | Check if the property mentioned in attribute has value equal to value provided | ``` { \"equal\" : { \"value\" : \"80\" , \"attribute\" : \"price\" } } ``` | |\n | contains | value, attribute | Check if the property mentioned in attribute contains the value given. | ``` { \"contains\" : { \"value\" : \"great\" , \"attribute\" : \"desc\" }} ``` | |\n | in | value, attribute | Check if the property mentioned in attribute is available in value array provided. | ``` { \"in\" : { \"value\" : [ \"C\" , \"Javascript\" , \"Python\" ], \"attribute\" : \"lang\" }} ``` | |\n\n 1. A Rules JSON could be defined as\n ```json\n { \n \"AND\": [\n { \"lessThan\": {\"value\": \"80\", \"attribute\": \"price\"} },\n { \"greaterThanEqual\": {\"value\": \"20\", \"attribute\": \"price\"} },\n { \"between\": { \"min\": \"10\", \"max\": \"20\", \"attribute\": \"discount\" }}\n ]\n }\n ```\n ```json\n {\n \"OR\":[\n { \"contains\": { \"value\": \"great\", \"attribute\": \"desc\" }},\n { \"contains\": { \"value\": \"works\", \"attribute\": \"features\"}},\n { \"in\": { \"value\": [\"C\",\"Javascript\",\"Python\"], \"attribute\": \"lang\"}},\n ]\n }\n ```\n\n1. Rules can be recursively nested as shown below\n ```json\n {\n \"AND\": [\n { \n \"AND\": [\n { \"lessThan\": {\"value\": \"80\", \"attribute\": \"price\"} },\n { \"greaterThanEqual\": {\"value\": \"20\", \"attribute\": \"price\"} },\n { \"between\": { \"min\": \"10\", \"max\": \"20\", \"attribute\": \"discount\" }}\n ]\n },\n {\n \"OR\":[\n { \"contains\": { \"value\": \"great\", \"attribute\": \"desc\" }},\n { \"contains\": { \"value\": \"works\", \"attribute\": \"features\"}},\n { \"in\": { \"value\": [\"C\",\"Javascript\",\"Python\"], \"attribute\": \"lang\"}},\n ]\n }\n ]\n }\n ```\n\n### Step2: Pass Data JSON and Rule JSON to Engine\n```js\n const Engine = require(\"@aipeel/json-rules-engine\")\n\n Engine.apply(data,rule) // returns boolean - true or false\n```\n\n## Complete end-to-end example below for reference\n\n```js\nconst Engine = require(\"@aipeel/json-rules-engine\")\n\nconst rule = {\n \"AND\": [\n { \n \"AND\": [\n { \"lessThan\": {\"value\": \"80\", \"attribute\": \"price\"} },\n { \"greaterThanEqual\": {\"value\": \"20\", \"attribute\": \"price\"} },\n { \"between\": { \"min\": \"10\", \"max\": \"20\", \"attribute\": \"discount\" }}\n ]\n },\n {\n \"OR\":[\n { \"contains\": { \"value\": \"great\", \"attribute\": \"desc\" }},\n { \"contains\": { \"value\": \"works\", \"attribute\": \"features\"}},\n { \"in\": { \"value\": [\"C\",\"Javascript\",\"Python\"], \"attribute\": \"lang\"}},\n ]\n }\n ]\n }\n\nlet data = {\n id: 'ID1001',\n price: 50,\n discount: 10,\n desc: \"This is a great product for developers\",\n features: [\"No Dependencies\", \"Open to Extension\", \"Synchronous\", \"works\"],\n tags: [\"json\", \"rule\", \"engine\"],\n lang: \"Javascript\"\n}\n\n// example 1\nconsole.log(`Does the data conform to rule? --> ${Engine.apply(data,rule)?\"Yes\":\"No\"}`);\n\n//example 2\ndata.price = 100;\nconsole.log(`Does the data conform to rule? --> ${Engine.apply(data,rule)?\"Yes\":\"No\"}`);\n\n//example 3\ndata.price = 50;\ndata.discount = 21;\nconsole.log(`Does the data conform to rule? --> ${Engine.apply(data,rule)?\"Yes\":\"No\"}`);\n```\n\nOutput\n```yml\nDoes the data conform to rule? --> Yes\nDoes the data conform to rule? --> No\nDoes the data conform to rule? --> No\n```","readmeFilename":"README.md","description":"## What does it do? 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