Java Requires Chilkat v11.5.0+

curl with OAuth2 Client Credentials

See more CURL Examples

This example shows how to run a simple CURL command with an OAuth2 access token for authorization. We use CURL to retrieve a SharePoint site ID, and Chilkat automatically fetches the OAuth2 access token using the provided credentials. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.HttpCurl;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example will run the following curl command

        // curl -X GET "https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}" \
        //   -H "Authorization: Bearer ACCESS_TOKEN" \
        //   -H "Accept: application/json"

        StringBuilder sb = new StringBuilder();
        sb.appendLn("curl -X GET \"https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}\" \\");
        sb.appendLn("  -H \"Authorization: Bearer ACCESS_TOKEN\" \\");
        sb.appendLn("  -H \"Accept: application/json\"");

        // Build the JSON that provides information for getting the OAuth2 access token using the OAuth2 client credentials flow.
        JsonObject jsonOAuth2 = new JsonObject();

        jsonOAuth2.updateString("oauth2.client_id", "CLIENT_ID");
        jsonOAuth2.updateString("oauth2.client_secret", "CLIENT_SECRET");
        jsonOAuth2.updateString("oauth2.scope", "https://graph.microsoft.com/.default");
        jsonOAuth2.updateString("oauth2.token_endpoint", "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token");

        HttpCurl httpCurl = new HttpCurl();

        // Provide the information for getting the OAuth2 access token from the token endpoint
        // Note: The Authorization header specified in the curl command will be ignored and replaced using the OAuth2 access token obtained at runtime from the token endpoint.
        httpCurl.setAuth(jsonOAuth2);

        // The placeholders {{sharepoint_hostname}} and {{site_name}} represent variables that must be defined before execution.
        // When DoYourThing runs the curl command, it automatically substitutes these placeholders with their corresponding values.
        // Below are the values assigned to these variables:
        httpCurl.setVar("sharepoint_hostname", "example.sharepoint.com");
        httpCurl.setVar("site_name", "test");

        // Run the curl command.
        try {
            httpCurl.doYourThing(sb.getAsString());
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        JsonObject responseJson = new JsonObject();
        responseJson.setEmitCompact(false);

        httpCurl.getResponseJson(responseJson);

        int statusCode = httpCurl.getStatusCode();
        System.out.println("response status code: " + statusCode);

        System.out.println(responseJson.emit());
    }
}