Backend

src/backend/lib/validator/index.js

@@ -0,0 +1,53 @@
+'use strict';
+
+const _           = require('lodash');
+const error       = require('../error');
+const definitions = require('../../schema/definitions.json');
+
+RegExp.prototype.toJSON = RegExp.prototype.toString;
+
+const ajv = require('ajv')({
+    verbose:     true, //process.env.NODE_ENV === 'development',
+    allErrors:   true,
+    format:      'full',  // strict regexes for format checks
+    coerceTypes: true,
+    schemas:     [
+        definitions
+    ]
+});
+
+/**
+ *
+ * @param {Object} schema
+ * @param {Object} payload
+ * @returns {Promise}
+ */
+function validator (schema, payload) {
+    return new Promise(function (resolve, reject) {
+        if (!payload) {
+            reject(new error.InternalValidationError('Payload is falsy'));
+        } else {
+            try {
+                let validate = ajv.compile(schema);
+
+                let valid = validate(payload);
+                if (valid && !validate.errors) {
+                    resolve(_.cloneDeep(payload));
+                } else {
+                    //console.log('Validation failed:', schema, payload);
+
+                    let message = ajv.errorsText(validate.errors);
+                    reject(new error.InternalValidationError(message));
+                }
+
+            } catch (err) {
+                reject(err);
+            }
+
+        }
+
+    });
+
+}
+
+module.exports = validator;