Initial commit

manager/src/backend/lib/validator/api.js

@@ -0,0 +1,49 @@
+'use strict';
+
+const error  = require('../error');
+const path   = require('path');
+const parser = require('json-schema-ref-parser');
+
+const ajv = require('ajv')({
+    verbose:        true,
+    validateSchema: true,
+    allErrors:      false,
+    format:         'full',  // strict regexes for format checks
+    coerceTypes:    true
+});
+
+/**
+ * @param {Object} schema
+ * @param {Object} payload
+ * @returns {Promise}
+ */
+function apiValidator (schema, payload/*, description*/) {
+    return new Promise(function Promise_apiValidator (resolve, reject) {
+        if (typeof payload === 'undefined') {
+            reject(new error.ValidationError('Payload is undefined'));
+        }
+
+        let validate = ajv.compile(schema);
+        let valid    = validate(payload);
+
+        if (valid && !validate.errors) {
+            resolve(payload);
+        } else {
+            let message = ajv.errorsText(validate.errors);
+            //debug(validate.errors);
+
+            let err   = new error.ValidationError(message);
+            err.debug = [validate.errors, payload];
+            reject(err);
+        }
+    });
+}
+
+apiValidator.loadSchemas = parser
+    .dereference(path.resolve('src/backend/schema/index.json'))
+    .then((schema) => {
+        ajv.addSchema(schema);
+        return schema;
+    });
+
+module.exports = apiValidator;