fix(Validation): Schema validator now accepts OpenAPI formats

Added ajv-openapi package to add support for the known formats that OpenAPI defines.
Unknown formats will no longer cause errors to be thrown and will instead write warnings to the console.

Fixes jormaechea#19

lib/schema-validator/index.js

@@ -1,15 +1,30 @@
-'use strict';
+"use strict";
 
-const Ajv = require('ajv');
+const Ajv = require("ajv");
+const openApi = require("ajv-openapi");
 
-const ajv = new Ajv({ unknownFormats: ['password'] });
+// Configuration as defined in ajv-openapi example: https://www.npmjs.com/package/ajv-openapi#configuration-for-full-openapi-compatibility
+const ajvOptions = {
+	schemaId: "auto",
+	format: "full",
+	coerceTypes: true,
+	unknownFormats: "ignore",
+	useDefaults: true
+};
 
-class SchemaValidator {
+const openApiOptions = {
+	useDraft04: true
+};
 
-	static validate(data, schema) {
-		return !ajv.validate(schema, data) ? ajv.errors : [];
-	}
+const ajv = openApi(
+	new Ajv(ajvOptions),
+	openApiOptions
+);
 
+class SchemaValidator {
+  static validate(data, schema) {
+    return !ajv.validate(schema, data) ? ajv.errors : [];
+  }
 }
 
 module.exports = SchemaValidator;

package.json

@@ -38,7 +38,8 @@
     "sinon": "^9.2.4"
   },
   "dependencies": {
-    "ajv": "^6.10.2",
+    "ajv": "^6.12.6",
+    "ajv-openapi": "^2.0.0",
     "body-parser": "^1.19.0",
     "chokidar": "^3.5.1",
     "colors": "^1.4.0",