middleware 5 validation 3 typescript 3 request-validation 3 input-validation 3 express 3 data-validation 3 input-sanitization 2 schema-validation 2 validator 2 express-middleware 2 joi 2 request-validator 2 validation-rules 2 api-validation 2 express-validator 2 nodejs 2 schema 1 request-sanitization 1 no-dependencies 1 lightweight 1 database-validation 1 file-validation 1 async-validation 1 custom-validators 1 api-security 1 input-security 1 request-middleware 1 expressjs 1 request validation 1 validation middleware 1 Joi validation middleware 1 express request validation 1 Joi schema validation 1 express-request-validation 1 joi-schema-validation 1 joi-validation-middleware 1 joi-validation 1 data-validations 1 custom-middleware 1 npm 1 express-api-validator 1 express-request-validator 1 api 1 node 1 javascript 1 nodejs-middleware 1 error-handling 1 custom-validation 1 data-integrity 1 api-request 1 validation-library 1 backend-validation 1 validation-framework 1 microservices 1 api-error-handling 1 form-validation 1 nextjs 1 fastify 1 koa 1 sanitization 1 joi-alternative 1 yup-alternative 1 express-validation 1