precepticon

A rule validation library to compare and validate 2 values according to the list of cases based on its priority counter

Usage

``sh
const Precepticon = require('precepticon');
const RuleSet = require('./pathtolib/Ruleset');
const precepticon = new Preceptor();

`

Below is working configuration file of one of our projects. This configuration file will help you understand the different type of options this library provides

`
let rules = {
expressions: {
any: {
key: constants.rules.NAME_PHONE_ZIP,
priority: 100,
all: [
{
fact: 'name',
value: () => argsInput.name,
matchCriteria: {
threshold: 50,
validator: floppyNameMatch
}
},
{
fact: 'phone',
operator: 'indexOf',
hooks: {
pre: cleanup.phone_no
},
value: () => argsInput.phone
},
{
fact: 'zip',
operator: 'indexOf',
hooks: {
pre: cleanup.zip
},
value: () => argsInput.zip
}
]
},
{
key: constants.rules.NAME_ZIP_ADDRESS,
priority: 90,
all: [
{
fact: 'name',
value: () => argsInput.name,
matchCriteria: {
threshold: retryThreshold,
validator: strictNameMatch
}
},
{
fact: 'zip',
operator: 'indexOf',
hooks: {
pre: cleanup.zip
},
value: () => argsInput.zip
},
{
fact: 'address',
value: () => argsInput.address,
hooks: {
pre: cleanup.removeAddressAbbr
},
matchCriteria: {
threshold: addressThreshold,
validator: floppyAddressMatch
}
},
{
fact: 'city',
operator: 'indexOf',
value: () => argsInput.city,
},
{
fact: 'state',
operator: 'indexOf',
hooks: {
post: stateMatchWithAbbr
},
value: () => argsInput.state,
}
]
},
{
key: constants.rules.PARTIAL_MATCH,
priority: 80,
all: [
{
fact: 'name',
value: () => argsInput.name,
matchCriteria: {
threshold: 50,
validator: floppyNameMatch
}
},
{
fact: 'phone',
operator: 'excludes',
hooks: {
pre: cleanup.phone_no
},
value: () => argsInput.phone
},
{
fact: 'zip',
operator: 'indexOf',
hooks: {
pre: cleanup.zip
},
value: () => argsInput.zip
},
{
fact: 'address',
value: () => argsInput.address,
matchCriteria: {
threshold: retryThreshold,
validator: (factBody) => factBody.value == undefined
}
},

],
onSuccess: ()=>{
return {
exception: ERROR_SEARCH_PARTIAL_MATCH
}
}
},
{
key: constants.rules.STRICT_NAME_MATCH,
priority: 50,
all: [
{
fact: 'name',
value: () => argsInput.name,
matchCriteria: {
threshold: 100,
validator: strictNameMatch
}
}
]
}
]
}
}
`

`
precepticon.addRules(rules);
`

`
precepticon.validate({
name: "MSI GV62 8RE-016 15.6" IPS GTX 1060 i5-8300H 8 GB Memory"
zip: "112114"
phone: "9876543212",
address: "72 DLF Phase 5",
city: "Oakland"
state: "California"
})
.then(function(validCase){
if(validCase.length < 1) return false;
validCase.forEach(function(caseObj){
if(caseObj.getKey() === constants.rules.PARTIAL_MATCH){
throw errors[caseObj.getThence().exception];
}
});
console.log("One of the case matched!");
});
``