a basic rule engine implementation in Golang
Rules engines or rule expressions serve as pluggable software components which execute business rules that a business rules approach has externalized or separated from application code. This externalization or separation allows business users to modify the rules without the need for a big effort.
if you want to look into the details, follow this link, please.
- TBD
- TBD
{
"country": "Turkey",
"city": "Istanbul",
"district": "Kadikoy",
"population": 20000,
"language": "Turkish"
}{
"conditions":[
{
"all":[
{
"field":"country",
"operator":"equals",
"value":"Turkey"
},
{
"field":"city",
"operator":"equals",
"value":"Istanbul"
},
{
"field":"district",
"operator":"equals",
"value":"Kadikoy"
},
{
"field":"population",
"operator":"equals",
"value":20000.00
},
{
"field":"population",
"operator":"notEquals",
"value":50000.00
},
{
"field":"population",
"operator":"lessThan",
"value":21000.00
},
{
"field":"population",
"operator":"lessThanInclusive",
"value":20000.00
},
{
"field":"population",
"operator":"greaterThan",
"value":19000.00
},
{
"field":"population",
"operator":"greaterThanInclusive",
"value":20000.00
},
{
"field":"country",
"operator":"in",
"value":[
"Turkey"
]
},
{
"field":"country",
"operator":"notIn",
"value":[
"Germany"
]
}
],
"any":[
{
"field":"country",
"operator":"equals",
"value":"England"
},
{
"field":"city",
"operator":"equals",
"value":"London"
},
{
"field":"population",
"operator":"equals",
"value":200000.00
},
{
"field":"country",
"operator":"equals",
"value":"Turkey"
},
{
"field":"city",
"operator":"equals",
"value":"Madrid"
},
{
"field":"population",
"operator":"equals",
"value":1000.00
}
]
}
]
}Rules have been executed. it passed!| operator | meaning |
|---|---|
| equals | equals to |
| notEquals | not equal to |
| lessThan | less than |
| greaterThan | greater than |
| lessThanInclusive | less than or equal to |
| greaterThanInclusive | greater than or equal to |
| in | in a list |
| notIn | not in a list |
| startsWith | starts with |
| endsWith | ends with |
| contains | contains |
| notContains | not contains |
| regex | contains any match of the regular expression pattern |
- Go
- if you want to add anything, contributions are welcome.
- Open a pull request that has your explanations
leaderboard is open-sourced software licensed under the MIT license.