Java

Amazon SP-API Request an LWA access token

See more Amazon SP-API Examples

Request an LWA access token, make a secure HTTP POST to the LWA authentication server (https://api.amazon.com/auth/o2/token) Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpRequest;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Http http = new Http();

        // Implements the following CURL command:

        // curl -X POST https://example.com/auth/o2/token \
        //   -H "Host: api.amazon.com" \
        //   -H "Content-Type: application/x-www-form-urlencoded;charset=UTF-8" \
        //   -d "grant_type=refresh_token" \
        //   -d "refresh_token=Aztr|..." \
        //   -d "client_id=foodev" \
        //   -d "client_secret=Y76SDl2F"

        // Use the following online tool to generate HTTP code from a CURL command
        // Convert a cURL Command to HTTP Source Code

        HttpRequest req = new HttpRequest();
        req.addParam("grant_type", "refresh_token");
        req.addParam("refresh_token", "Aztr|...");
        req.addParam("client_id", "foodev");
        req.addParam("client_secret", "Y76SDl2F");

        req.addHeader("Host", "api.amazon.com");

        req.setHttpVerb("POST");
        req.setContentType("application/x-www-form-urlencoded");

        HttpResponse resp = new HttpResponse();
        try {
            http.httpReq("https://api.amazon.com/auth/o2/token", req, resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int statusCode = resp.getStatusCode();
        System.out.println("Status Code = " + statusCode);

        JsonObject json = new JsonObject();
        json.load(resp.getBodyStr());

        json.setEmitCompact(false);
        System.out.println(json.emit());

        if (statusCode != 200) {
            System.out.println("Failed.");
            return;
        }

        // Success returns this JSON:

        // {
        //   "access_token": "Atza|...",
        //   "refresh_token": "Atzr|...",
        //   "token_type": "bearer",
        //   "expires_in": 3600
        // }

        // Save the JSON token to a file for use in subsequent calls.
        // (this example is passing a relative file path.  You don't need to save to a file
        // if, for example, you keep the access token in-memory for subsequent use...)
        json.writeFile("qa_data/tokens/sp_api_lwa_token.json");

        System.out.println("access_token: " + json.stringOf("access_token"));
        System.out.println("Success.");
    }
}