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This documentation provides an overview of how to configure and authorize requests to the Aspose Barcode Cloud API using JWT and external authorization methods. It covers key code examples and settings needed to enable secure and authorized API requests.
Note: For manage authorization you should have a Client Id and Client Secret. How to get it described in Quick Start Section
Aspose Barcode Cloud API supports two main authorization methods:
When using JWT, the API classes automatically obtains a token and includes it in each API request.
To set up JWT authorization, specify the ClientId
and ClientSecret
:
ApiClient client =
new ApiClient(
"<Your-Client-Id>",
"<Your-Client-Secret>");
GenerateApi generateApi = new GenerateApi(client);
Upon setup, the internal SDK methods handles token generation and token refresh:
ClientId
and ClientSecret
.External authorization allows you to manually manage tokens. Assign your JWT token directly to AccessToken
and leave ClientId
and ClientSecret
blank.
Example configuration with External Authorization:
ApiClient client =
new ApiClient("<Your-External-Jwt-Token>");
RecognizeApi recognizeApi = new RecognizeApi(client);
In this mode, the API sends the provided JWT in the Authorization header without attempting to generate or refresh the token.
To fetch a new token, send a POST request to https://id.aspose.cloud/connect/token with the application/x-www-form-urlencoded
content type. In the request body, specify the following parameters:
grant_type=client_credentials
client_id=<Your-Client-Id>
client_secret=<Your-Client-Secret>
A Code example for fetching token:
package com.aspose.barcode.cloud.snippets;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.net.URI;
import java.net.URLEncoder;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpRequest.BodyPublishers;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.stream.Collectors;
public class ManualFetchToken {
public static void main(String[] args) {
String clientId = "Client Id from https://dashboard.aspose.cloud/applications";
String clientSecret = "Client Secret from https://dashboard.aspose.cloud/applications";
// Check the client_id is changed to not break GitHub CI pipeline
if (clientId.startsWith("Client Id")) {
System.out.println("client_id not configured. Skip this snippet test");
return;
}
HttpClient client = HttpClient.newHttpClient();
// Form the payload
String form =
Map.of(
"grant_type", "client_credentials",
"client_id", clientId,
"client_secret", clientSecret)
.entrySet()
.stream()
.map(
entry ->
URLEncoder.encode(entry.getKey(), StandardCharsets.UTF_8)
+ "="
+ URLEncoder.encode(
entry.getValue(), StandardCharsets.UTF_8))
.collect(Collectors.joining("&"));
HttpRequest request =
HttpRequest.newBuilder()
.uri(URI.create("https://id.aspose.cloud/connect/token"))
.header("Content-Type", "application/x-www-form-urlencoded")
.POST(BodyPublishers.ofString(form))
.build();
try {
HttpResponse<String> response =
client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() == 200) {
JsonObject data = JsonParser.parseString(response.body()).getAsJsonObject();
String token = data.get("access_token").getAsString();
System.out.println("Token reciewed successfully.");
// Uncomment next line to view token
// System.out.println(token);
} else {
System.out.printf("Request failed with status code: %d%n", response.statusCode());
}
} catch (Exception ex) {
System.out.println("An unexpected error occurred: " + ex.getMessage());
}
}
}
Configuring authorization in the Aspose.BarCode.Cloud SDK for Java allows secure, authenticated access to barcode-related functionalities. Choose JWT authorization wiht client id and secret for automatic token management or external for custom token handling.
With these examples and explanations, you should be able to set up authorization for the Aspose.BarCode.Cloud SDK for Java.
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