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(Java) Get Google API Access Token using P12 Service Account KeyDemonstrates how to get a Google API access token using a P12 service account key.
import com.chilkatsoft.*; public class ChilkatExample { static { try { System.loadLibrary("chilkat"); } catch (UnsatisfiedLinkError e) { System.err.println("Native code library failed to load.\n" + e); System.exit(1); } } public static void main(String argv[]) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // -------------------------------------------------------------------------------- // For a step-by-step guide for setting up your Google Workspace service account, // see Setup Google Workspace Account for Sending SMTP GMail from a Service Account // -------------------------------------------------------------------------------- // First load the PKCS12 (.p12 / .pfx) into a PFX object. CkPfx pfx = new CkPfx(); boolean success = pfx.LoadPfxFile("qa_data/pfx/chilkat25-cbd7b42afbd8.p12","notasecret"); if (success != true) { System.out.println(pfx.lastErrorText()); return; } CkAuthGoogle gAuth = new CkAuthGoogle(); success = gAuth.SetP12(pfx); // The ISS is your service account email address ending in gserviceaccount.com. String iss = "chilkatsvc@chilkat25.iam.gserviceaccount.com"; // The scope is always the following string: String scope = "https://mail.google.com/"; // The sub is your company email address String oauth_sub = "info@chilkat.xyz"; // The access token is valid for this number of seconds. int numSec = 3600; gAuth.put_EmailAddress(iss); gAuth.put_Scope(scope); gAuth.put_ExpireNumSeconds(numSec); gAuth.put_SubEmailAddress(oauth_sub); // Connect to www.googleapis.com CkSocket tlsSock = new CkSocket(); success = tlsSock.Connect("www.googleapis.com",443,true,5000); if (success != true) { System.out.println(tlsSock.lastErrorText()); return; } // Send the request to obtain the access token. success = gAuth.ObtainAccessToken(tlsSock); if (success != true) { System.out.println(gAuth.lastErrorText()); return; } // Examine the access token: System.out.println("Access Token: " + gAuth.accessToken()); } } |
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