init

src/middlewares/validate.js

@@ -0,0 +1,21 @@
+const Joi = require('joi');
+const httpStatus = require('http-status');
+const pick = require('../utils/pick');
+const ApiError = require('../utils/ApiError');
+
+const validate = (schema) => (req, res, next) => {
+  const validSchema = pick(schema, ['params', 'query', 'body']);
+  const object = pick(req, Object.keys(validSchema));
+  const { value, error } = Joi.compile(validSchema)
+    .prefs({ errors: { label: 'key' }, abortEarly: false })
+    .validate(object);
+
+  if (error) {
+    const errorMessage = error.details.map((details) => details.message).join(', ');
+    return next(new ApiError(httpStatus.BAD_REQUEST, errorMessage));
+  }
+  Object.assign(req, value);
+  return next();
+};
+
+module.exports = validate;