# ConfluentSchema
Provides cache and validation for confluent schemas that are pulled from a registry.
It mixes
* [ConfluentSchemaRegistry](https://github.com/cogini/confluent_schema_registry)
* [ExJsonSchema](https://github.com/jonasschmidt/ex_json_schema/)
* [ETS](https://www.erlang.org/doc/man/ets.html)
To provide fast validation for schemas registered remotely on a registry server, for example [confluent.cloud](confluent.cloud).
## Installation
```elixir
def deps do
[
{:confluent_schema, "~> 0.1.1"}
]
end
```
## Usage
On `application.ex`:
```elixir
def start(_type, _args) do
opts = [
period: :timer.seconds(10),
debug: true,
base_url: "https://foobar.region.aws.confluent.cloud",
username: "key",
password: "api secret",
]
children = [
{ConfluentSchema, opts}
]
supervisor_opts = [strategy: :one_for_one, name: MyApp.Supervisor]
Supervisor.start_link(children, supervisor_opts)
end
```
Then you can use confluent schema registry to validate payloads for a subject:
```elixir
payload = %{foo: "bar"}
ConfluentSchema.validate(payload, "my-subject")
```
Check out `ConfluentSchema.child_spec/1` for documentation about all options.