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What does named credentials as callout endpoints mean?
Named Credentials as Callout Endpoints A named credential specifies the URL of a callout endpoint and its required authentication parameters in one definition. Salesforce manages all authentication for Apex callouts that specify a named credential as the callout endpoint so that your code doesn’t have to.
How to create named credential endpoints in apex?
Salesforce generates a standard authorization header for each callout to a named-credential-defined endpoint, but you can disable this option. Your Apex code can also use merge fields to construct each callout’s HTTP header and body.
How to insert and update records using REST API?
If you have an object that references another object using a relationship, you can use REST API to both insert or update a record and also reference another object using an external ID. The following example creates a record and associates it with a parent record via external ID.
What happens if the endpoint of a credential changes?
For example, if an endpoint URL changes, you update only the named credential. All callouts that reference the named credential simply continue to work. If you have multiple orgs, you can create a named credential with the same name but with a different endpoint URL in each org.
How to add an oauthtoken to an endpoint?
In the developer documentation on ” Merge Fields for Apex Callouts That Use Named Credentials “, it seems that one can access the Access Token using {!$Credential.OAuthToken}. However, I have been unable to add this variable to the endpoint URL.
How to use named credentials without using the named credentials?
I am trying to use the Named credentials for the first time without using the named credentials directly if I call the endpoints with credentials it works perfectly fine which uses OAuth where I get the Bearer/Access token from Microsoft and use them to post the data to the external system like below I am trying to use the named credentials now.