In Zylker's web UI, there will be an option to integrate with Zoho CRM. The integration can be initiated from a link or a button containing the authorization URL, along with the corresponding client ID, state, redirect URI, and OAuth scopes. Once the user clicks on this link/button and completes the OAuth authorization process on Zoho, they will be redirected to the specified redirect URI with HTTP parameters location, code, accounts server, and state. These parameters can be utilized within the Java code logic of the redirect URI to begin using the Zoho CRM Java SDK.

The codes used in this post are hosted here for reference. We will focus on two distinct steps as mentioned below, for Zylker integration with Zoho CRM using Java SDK.

     1.  Authorize with Zoho CRM

     2. Fetching data from Zoho CRM

The aim of this step is to connect with the user's Zoho CRM and store the token details such as refresh token, access token and expiry time in the preferred datastore like MySQL, pgSQL etc. Once the user lands on the redirect URI after the OAuth2.0 authorization, we can extract the email of the logged-in user from zylker.com cookies. We also obtain the grant token and location from the redirect_uri of the authorization request. We pass these three values to the below integrateZohoCRM() function. This function takes care of creating a token for the connected Zoho CRM account and persisting it in the preferred datastore.

public static Boolean integrateZohoCRM(String location, String grant_token, String user_email)  { Boolean integrationStatus = Boolean.FALSE; try { Environment environment = DataCenter.get(location); OAuthToken userToken = new OAuthToken.Builder()                 .clientID(OAuthClientDetails.CLIENT_ID)                 .clientSecret(OAuthClientDetails.CLIENT_SECRET)                 .grantToken(grant_token)                 .redirectURL(OAuthClientDetails.REDIRECT_URL)                                  .userSignature(new UserSignature(user_email)) //email of the user who is trying to integrate with Zoho CRM                                            .build(); new Initializer.Builder().environment(environment).token(userToken).initialize();  integrationStatus = Boolean.TRUE;     } catch (SDKException e) { e.printStackTrace();     } catch (Exception e) { e.printStackTrace();     } return integrationStatus; }

Refer here for the exact code section.