Uso el validador más rápido para la validación. Quiero que el campo de contraseña contenga al menos un carácter y un número. Necesito un mensaje para validar al menos un carácter y un mensaje para validar un número. aquí está mi código:
const Validator = require("fastest-validator"); const v = new Validator(); const registerSchema = { email: { type: "email"}, pass: { type: "string",pattern:'/.*[0-9].*/', min: 8, max: 20 }, }; //also I need a pattern to check at least one char is used and its message specific for it. exports.validateRegister = v.compile(registerSchema);Se puede hacer con un validador personalizado, consulte Validación personalizada para reglas integradas :
const Validator = require("fastest-validator"); const v = new Validator({ useNewCustomCheckerFunction: true, // using new version messages: { // Register our new error message text atLeastOneLetter: "The pass value must contain at least one letter from az and AZ ranges!", atLeastOneDigit: "The pass value must contain at least one digit from 0 to 9!" } }); const schema = { email: {type:"email"}, pass: { type: "string", custom: (v, errors) => { if (!/[0-9]/.test(v)) errors.push({ type: "atLeastOneDigit" }); if (!/[a-zA-Z]/.test(v)) errors.push({ type: "atLeastOneLetter" }); return v; }, min:8, max:20, messages: { stringPattern: "pass value must contain a digit", stringMin: "Your pass value is too short", stringMax: "Your pass value is too large", } } } const check = v.compile(schema); console.log( check( {email:"abc@def.com", pass: "JohnABCD"} )); console.log( check( {email:"abc@def.com", pass: "123456789"} )); console.log( check( {email:"abc@def.com", pass: "12A"} )); console.log( check( {email:"abc@def.com", pass: "12A12A12A12A12A12A12A12A12A12A"} )); Salida del node fv.js (así es como nombré el archivo con el código anterior):
# node fv.js [ { message: 'The pass value must contain at least one digit from 0 to 9!', field: 'pass', type: 'atLeastOneDigit' } ] [ { message: 'The pass value must contain at least one letter from az and AZ ranges!', field: 'pass', type: 'atLeastOneLetter' } ] [ { type: 'stringMin', message: 'Your pass value is too short', field: 'pass', expected: 8, actual: 3 } ] [ { type: 'stringMax', message: 'Your pass value is too large', field: 'pass', expected: 20, actual: 30 } ]