Java

Verified against provider 0.0.2 and SDK 1.17.0.

Install

<dependency>
  <groupId>dev.openfeature.contrib.providers</groupId>
  <artifactId>ofrep</artifactId>
  <version>0.0.2</version>
</dependency>
<dependency>
  <groupId>dev.openfeature</groupId>
  <artifactId>sdk</artifactId>
  <version>1.17.0</version>
</dependency>

Read a flag

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import dev.openfeature.contrib.providers.ofrep.OfrepProvider;
import dev.openfeature.contrib.providers.ofrep.OfrepProviderOptions;
import dev.openfeature.sdk.Client;
import dev.openfeature.sdk.EvaluationContext;
import dev.openfeature.sdk.MutableContext;
import dev.openfeature.sdk.OpenFeatureAPI;

OfrepProviderOptions options = OfrepProviderOptions.builder()
    .baseUrl("https://flags.example.com")
    .headers(ImmutableMap.of("x-api-key", ImmutableList.of("your-read-api-key")))
    .build();

OpenFeatureAPI.getInstance().setProviderAndWait(OfrepProvider.constructProvider(options));

Client client = OpenFeatureAPI.getInstance().getClient();
EvaluationContext ctx = new MutableContext("user-123").add("plan", "pro");

boolean enabled = client.getBooleanValue("new-checkout", false, ctx);

Two things worth knowing. Reach the options builder through OfrepProviderOptions.builder(); the builder’s constructor is package private, so new OfrepProviderOptions.Builder() will not compile. And headers takes a Guava ImmutableMap<String, ImmutableList<String>>, one list of values per header name. A wrong key returns the default you passed.