Easy Validation Service is a utility library for performing data validation tasks in Node.js applications. It provides a set of methods for validating various types of data, such as numbers, strings, emails, and objects.
npm install easy-validation-servicebash
npm install easy-validation-service
`
$3
`javascript
const ValidationService = require("easy-validation-service");
const registerUserValidators = {
email: (value) => ValidationService.validateEmail(value),
name: (value) => ValidationService.validateString({ value, min: 2, max: 25 }),
password: (value) =>
ValidationService.validateString({
value,
min: 8,
max: 16,
noWhiteSpace: true,
}),
verifyPassword: (value, data) => value === data.password,
role: {
name: (value) =>
ValidationService.isOneOf({ value, options: ["role1", "role2"] }),
},
isBusiness: (value) => ValidationService.isBoolean(value),
address: (value) =>
ValidationService.isNullOrUndefinedOrEmpty(value) ||
ValidationService.validateString({ value, min: 1 }),
};
const registerUserValidatorsWithErrors = {
email: (value) => ({
isValid: ValidationService.validateEmail(value),
errors: ["Please provide a valid email"],
}),
role: {
name: (value) => ({
isValid: ValidationService.isOneOf({
value,
options: ["role1", "role2"],
}),
errors: ["Please provide role1 or role2"],
}),
},
};
const firstUser = {
name: "DimTzilop",
email: "example@example.com",
password: "12345678",
verifyPassword: "1234567",
role: {
name: "role2",
},
address: null,
};
const secondUser = {
name: "DimTzilop",
email: "example@ex2ample.com",
password: "12345678",
verifyPassword: "12345678",
role: {
name: "role1",
},
address: null,
isBusiness: false,
};
const thirdUser = {
name: "DimTzilop",
email: "example@example.com",
password: "12345678",
verifyPassword: "12345678",
role: {
name: "admin",
},
address: null,
isBusiness: false,
};
console.log(ValidationService.validateBody(firstUser, registerUserValidators));
// false
console.log(ValidationService.validateBody(secondUser, registerUserValidators));
// true
console.log(ValidationService.validateBody(thirdUser, registerUserValidators));
// false
console.log(
ValidationService.validateBodyWithErrors(
thirdUser,
registerUserValidatorsWithErrors
)
);
// { isValid: false, errors: { role: { name: ["Please provide role1 or role2"] } } }
`
$3
#### validateNumber({ value, min = -Infinity, max = Infinity })
- Validates if a given value is a number within a specified range.
#### validateString({ value, min = 0, max = Infinity, noWhiteSpace = false })
- Validates if a given value is a string within a specified length range, optionally with no white spaces.
#### isIntOrStringInt(value)
- Checks if a given value is an integer or a string representing an integer.
#### isOneOf({ value, options = [] })
- Checks if a given value is one of the specified options.
#### isEveryOf({ value, options = [] })
- Checks if a given value is every one of the specified options.
#### isNumber(value)
- Checks if a given value is a number.
#### isString(value)
- Checks if a given value is a string.
#### isUndefined(value)
- Checks if a given value is undefined.
#### isFalsy(value)
- Checks if a given value is falsy.
#### isNull(value)
- Checks if a given value is null.
#### isNullOrUndefined(value)
- Checks if a given value is null or undefined.
#### isNullOrUndefinedOrEmpty(value)
- Checks if a given value is null, undefined, or an empty string.
#### isObject(value)
- Checks if a given value is an object.
#### isBoolean(value)
- Checks if a given value is a boolean.
#### validateEmail(email)
- Validates if a given value is a valid email address.
#### validateBody(data, validators, parentData)
- Validates a nested object against a set of validation rules.
#### validateBodyWithErrors(data, validators, parentData)
- Validates a nested object against a set of validation rules and preserves errors.
#### isNotEmptyArray(fieldSet)
- Checks if a given value is a non-empty array.
#### validateUniqueFieldSet(fieldSet, getValue = (x) => x)
- Validates if a given array contains unique elements based on a custom extraction function.
#### isArrayOfType(fieldSet, type)
- Checks if all elements in a given array are of a specified type.
#### isFunction(value)
- Checks if a given value is a function.
#### isValidPhoneNumber(value)
- Checks if a given value is a phone number.
#### isValidDate(value)
- Checks if a given value is a valid date or valid date string.
#### isValidIPv4(value)
- Checks if a given value is a valid IP v4 string
#### isValidIPv6(value)
- Checks if a given value is a valid IP v6 string
#### isValidIP(value)`