How to get salesforce session id in apex

What is session id in apex

The session id serves as a crucial authentication token in Salesforce, granting access to resources and APIs on behalf of a user. The session id is generated by the platform when a user successfully authenticate with the platform.

By design, they are temporary and expire after a set period of inactivity.

How to get session id in apex debug log or from visual studio code

There are various ways you can get the session ID in Apex, but it cannot be directly printed in a debug log. To print the session ID in a debug log, you will need to use a string method. You may use one of the following ways to get the session ID from your Salesforce org.

1. Get session id by using userInfo class

The userInfo class in Apex provides a method getSessionId(), allowing for the retrieval of the session ID in Apex. Due to its sensitive nature, the session ID typically cannot be printed in debug logs.

In order to put the session id in debug logs, apex string methods can be used.

String sessionId = userInfo.getSessionId();

//You will see a message 'SESSION_ID REMOVED'
System.debug('Session id '+sessionId); 

//You will see the session id
System.debug('Session id '+UserInfo.getOrganizationId() + UserInfo.getSessionId().substring(15));

2. Get access token from visual studio code

Access token is another way to get access to salesforce org and it behaves the same way as session id. The access token can be obtained via connected app.

The visual studio code connects to salesforce org via connected app and generates access token. This accesss token can be used instead of session id when connecting to your org.

To obtain access token from visual studio code via terminal, execute the following command.

//Using sf org command
sf org:display -o <your-org-name> --json

//example
sf org:display -o devorg --json

//Using sfdx command
sfdx org:display -o devorg --json

Session ID Removed Message

The "Session ID Removed" message in Salesforce Apex means that Salesforce automatically removes Session IDs from debug logs to protect sensitive information. This helps prevent accidental exposure of Session IDs, which are authentication tokens.

If you want to temporary get session id, use one of the above methods:

1. Get session id by using userInfo class

2. Get access token from visual studio code

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