I am new to Gatling. I need to validate responses against schema. Could you please suggest how to create custom checks in Gatling 3?
Thanks.
This specific missing functionality is what’s keeping Gatling from being my all-purpose API testing tool.
@Stéphane, if you read this, please give it a thought.
@Elena, I’ve tried to do my custom checks, but it’s too much Scala for me, so I’m trying something a bit different.
I began yesterday to work on something that, even if it ain’t the prettiest solution, can get the job done.
There are a few libs for the JVM that can evaluate json-schemas, but most of them are wrappers of https://github.com/java-json-tools/json-schema-validator, that’s outdated, quite slow, and only works with json-schema draftv4, when most modern libs for other languages are using v7. According to something I’ve read last year, this lib itself wraps a C lib that’s even older and unmaintained.
Yesterday after some quick search I’ve found this other https://github.com/everit-org/json-schema which works with draftv7.
So far I’ve implemented something like this
// JSON-Schema validator
val inputStream: InputStream = getClass.getResourceAsStream("/data/tasks/tasks-schema.json")
val rawSchema: JSONObject = new JSONObject(new JSONTokener(inputStream))
val loader: SchemaLoader = SchemaLoader.builder.schemaJson(rawSchema).build()
val schema: Schema = loader.load.build