How to use $regex of MongoDB with FeathersJS

README.md

How to use

First before to use $regex in query params, need understand the nomenclature of nested query params format in feathersJS.

The [String|Number] represent a object value when the value inside of array is String. Meanwhile that value inside of array is a Number represent an array.

For example, for set a object like a value of name key need write like this: name[key]=value, this is equal to:

{
  name: {
    key: value,
  },
}

Examples

Ex. (case-sensitive)

?name[$regex]=John

{
  name: {
    '$regex': 'John',
  }
}

Ex. (case-insensitive)

?name[$regex]=joh&name[$options]=i

{
  name: {
    '$regex': 'joh',
    '$options': 'i'
  }
}

Ex. (case-insensitive exact match)

?name[$regex]=^john$&name[$options]=i

{
  name: {
    '$regex': '^john$',
    '$options': 'i'
  }
}

Ex. (multiples case-insensitive)

?$or[0][name][$regex]=joh&$or[0][name][$options]=i&$or[1][email][$regex]=@gmail&$or[1][email][$options]=i

{
  name: {
    '$regex': 'joh',
    '$options': 'i',
  },
  email: {
    '$regex': '@gmail',
    '$options': 'i',
  },
}

Remember that in order to query in URL params like the examples need use FeathersJS!