How to add headers to OkHttp request interceptor?

Question

I have this interceptor that i add to my OkHttp client:

public class RequestTokenInterceptor implements Interceptor {
@Override
public Response intercept(Cha         


        

Answer 1

package com.example.network.interceptors;

import androidx.annotation.NonNull;

import java.io.IOException;
import java.util.Map;

import okhttp3.Interceptor;
import okhttp3.Request;
import okhttp3.Response;

public class RequestHeadersNetworkInterceptor implements Interceptor {

    private final Map headers;

    public RequestHeadersNetworkInterceptor(@NonNull Map headers) {
        this.headers = headers;
    }

    @NonNull
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request.Builder builder = chain.request().newBuilder();
        for (Map.Entry header : headers.entrySet()) {
            if (header.getKey() == null || header.getKey().trim().isEmpty()) {
                continue;
            }
            if (header.getValue() == null || header.getValue().trim().isEmpty()) {
                builder.removeHeader(header.getKey());
            } else {
                builder.header(header.getKey(), header.getValue());
            }
        }
        return chain.proceed(builder.build());
    }

}

Example of usage:

httpClientBuilder.networkInterceptors().add(new RequestHeadersNetworkInterceptor(new HashMap()
{
    {
        put("User-Agent", getUserAgent());
        put("Accept", "application/json");
    }
}));