Java Examples

1. Java POST Request Example

1) 상품생성 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
//import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacProductCreation {
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";

    public void test() {
        //params
        String method = "POST";
        String path = "/v2/providers/seller_api/apis/api/v1/marketplace/seller-products";
        
        //replace with your own product registration json data
        String strjson="{}";
        
        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path);

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            HttpPost requestPost = new HttpPost(uriBuilder.build().toString());

            StringEntity params =new StringEntity(strjson,"UTF-8");
            
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            requestPost.addHeader("Authorization", authorization);
            /********************************************************/
            requestPost.addHeader("content-type", "application/json");
            requestPost.setEntity(params);
            CloseableHttpResponse response = null;
            try {
                //execute post request
                response = client.execute(requestPost);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacProductCreation hmacTest = new HmacProductCreation();
        hmacTest.test();
    }
}

2. Java GET Request Example

1) 카테고리 메타정보조회 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacProductCategorymeta {
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";

    public void test() {
        //params
        String method = "GET";
        String path = "/v2/providers/seller_api/apis/api/v1/marketplace/meta/category-related-metas/display-category-codes/77723";

        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path);

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            HttpGet get = new HttpGet(uriBuilder.build().toString());
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            get.addHeader("Authorization", authorization);
            /********************************************************/
            get.addHeader("content-type", "application/json");
            CloseableHttpResponse response = null;
            try {
                //execute get request
                response = client.execute(get);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacProductCategorymeta hmacTest = new HmacProductCategorymeta();
        hmacTest.test();
    }
}

2) 반품/취소 요청목록 조회 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacOrderRetriveByDay {
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";
    //replace with your own vendorId
    private static final String VENDOR_ID = "****";

    public void test() {
        //params
        String method = "GET";
        //replace with your own vendorId
        String path = "/v2/providers/openapi/apis/api/v4/vendors/A00******/returnRequests";

        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path)
		            .addParameter("createdAtFrom", "2020-03-15")     
		            .addParameter("createdAtTo", "2020-03-16") 
		            .addParameter("status", "UC");         
            
            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            HttpGet get = new HttpGet(uriBuilder.build().toString());
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            get.addHeader("Authorization", authorization);
            /********************************************************/
            get.addHeader("X-Requested-By", VENDOR_ID);
            get.addHeader("content-type", "application/json");
            //add X-EXTENDED-TIMEOUT value        
            get.addHeader("X-EXTENDED-TIMEOUT", "90000");
            CloseableHttpResponse response = null;
            try {
                //execute get request
                response = client.execute(get);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacOrderRetriveByDay hmacTest = new HmacOrderRetriveByDay();
        hmacTest.test();
    }
}

3) 발주서 목록 조회(일단위 페이징) API

package org.example;
import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;
import java.io.IOException;

class HmacOrderbyday {

    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "7e4b898f-*****-4a61-****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "04835*******b34b68c";

    public void test() {
        //params
        String method = "GET";
        //replace with your own vendorId
        String path = "/v2/providers/openapi/apis/api/v5/vendors/{vendorId}/ordersheets";
        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            UriComponentsBuilder builder = UriComponentsBuilder.newInstance()
                    .path(path)
                    .queryParam("createdAtFrom", "2025-12-09%2B09:00")
                    .queryParam("createdAtTo", "2025-12-19%2B09:00")
                    .queryParam("status", "INSTRUCT");

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method,builder.build().toUriString(),SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/
            UriComponents finalUri = builder
                    .scheme(SCHEMA)
                    .host(HOST)
                    .port(PORT)
                    .build();
            HttpGet get = new HttpGet(finalUri.toUriString());
            System.out.println(finalUri.toUriString());
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            get.addHeader("Authorization", authorization);
            get.addHeader("X-Requested-By", vendorId);
            get.addHeader("X-MARKET", "KR");
            get.addHeader("content-type", "application/json");
            //add X-EXTENDED-TIMEOUT value
            get.addHeader("X-EXTENDED-TIMEOUT", "90000");
            System.out.println(get.toString());
            CloseableHttpResponse response = null;
            try {
                //execute get request
                response = client.execute(get);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacOrderbyday hmacTest = new HmacOrderbyday();
        hmacTest.test();
    }
}

3. Java PUT Request Example

1) 상품수정 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacProductUpdate {	
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";

    public void test() {
        //params
        String method = "PUT";
        String path = "/v2/providers/seller_api/apis/api/v1/marketplace/seller-products";
        
        //replace with your own product registration json data
        String strjson="{}";
        
        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path);

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            HttpPut requestPut = new HttpPut(uriBuilder.build().toString());

            StringEntity params =new StringEntity(strjson,"UTF-8");
            
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            requestPut.addHeader("Authorization", authorization);
            /********************************************************/
            requestPut.addHeader("content-type", "application/json");
            requestPut.setEntity(params);
            CloseableHttpResponse response = null;
            try {
                //execute post request
                response = client.execute(requestPut);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacProductUpdate hmacTest = new HmacProductUpdate();
        hmacTest.test();
    }
}

2) 상품 아이템별 가격 변경 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacProductPriceUpdate {	
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";
    //replace with your own vendorId
    private static final String VENDOR_ID = "****";
   
    public void test() {
        //params
        String method = "PUT";
        //replace with your own vendorItemId and price
        String path = "/v2/providers/seller_api/apis/api/v1/marketplace/vendor-items/703********/prices/1200***";       
        
        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path)       
                    .addParameter("forceSalePriceUpdate", "true");

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            HttpPut requestPut = new HttpPut(uriBuilder.build().toString());

            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            requestPut.addHeader("Authorization", authorization);
            /********************************************************/
            requestPut.addHeader("X-Requested-By", VENDOR_ID);
            requestPut.addHeader("content-type", "application/json");
            CloseableHttpResponse response = null;
            try {
                //execute post request
                response = client.execute(requestPut);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacProductPriceUpdate hmacTest = new HmacProductPriceUpdate();
        hmacTest.test();
    }
}

4. Java DELETE Request Example

1) 상품삭제 API

package sellerProvide_com.coupang.openapi.product.copy;

import com.coupang.openapi.sdk.Hmac;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

public class HmacProductDelete {
	
    private static final String HOST = "api-gateway.coupang.com";
    private static final int PORT = 443;
    private static final String SCHEMA = "https";
    //replace with your own accessKey
    private static final String ACCESS_KEY = "****";
    //replace with your own secretKey
    private static final String SECRET_KEY = "****";

    public void test() {
        //params
        String method = "DELETE";
        String path = "/v2/providers/seller_api/apis/api/v1/marketplace/seller-products/2404";
        
        CloseableHttpClient client = null;
        try {
            //create client
            client = HttpClients.createDefault();
            //build uri
            URIBuilder uriBuilder = new URIBuilder()
                    .setPath(path);

            /********************************************************/
            //authorize, demonstrate how to generate hmac signature here
            String authorization = Hmac.generate(method, uriBuilder.build().toString(), SECRET_KEY, ACCESS_KEY);
            //print out the hmac key
            System.out.println(authorization);
            /********************************************************/

            uriBuilder.setScheme(SCHEMA).setHost(HOST).setPort(PORT);
            //HttpPost requestPost = new HttpPost(uriBuilder.build().toString());
            HttpDelete requestDelete = new HttpDelete(uriBuilder.build().toString());

            //StringEntity params =new StringEntity(strjson,"UTF-8");
            
            /********************************************************/
            // set header, demonstarte how to use hmac signature here
            requestDelete.addHeader("Authorization", authorization);
            /********************************************************/
            requestDelete.addHeader("content-type", "application/json");
            //requestPut.setEntity(params);
            CloseableHttpResponse response = null;
            try {
                //execute post request
                response = client.execute(requestDelete);
                //print result
                System.out.println("status code:" + response.getStatusLine().getStatusCode());
                System.out.println("status message:" + response.getStatusLine().getReasonPhrase());
                HttpEntity entity = response.getEntity();
                System.out.println("result:" + EntityUtils.toString(entity));
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (response != null) {
                    try {
                        response.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (client != null) {
                try {
                    client.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) {
        HmacProductDelete hmacTest = new HmacProductDelete();
        hmacTest.test();
    }
}