Introduction

Registering a SharePoint site for client secrets and client ID is essential for integrating custom applications with SharePoint and accessing its resources securely. In this guide, we'll explore the step-by-step process of registering a SharePoint add-in, generating a client ID and client secret, and granting the required permissions using the AppRegNew form. By following these instructions, developers can seamlessly integrate their applications with SharePoint and leverage its capabilities in their solutions.

Understanding SharePoint Add-ins

SharePoint add-ins, also known as apps, are self-contained pieces of functionality that extend the capabilities of a SharePoint site. They can be SharePoint-hosted or provider-hosted, offering flexibility in deployment and architecture.

Now, let's delve into the process of registering a SharePoint add-in and granting the necessary permissions:

Step 1. Begin by navigating to your SharePoint site

Modifying the URL by adding "_layouts/15/appregnew.aspx" at the end (e.g. https://(Site Name)/_layouts/15/AppRegNew.aspx ). This will take you to the AppRegNew form.

Navigate to

[Site Collection URL]/_layouts/15/AppRegNew.aspx.

AppRegNew form

Step 2. Fill in the required details

INPUT

Step 3. Grant Permission to the Add-In

Now that the identifier is created, we need to grant the necessary permission for it to perform any action. In this example, I’ll demonstrate how to grant full control access to a Site Collection.

Navigate to

[Site Collection URL]/_layouts/15/AppInv.aspx

Grant Permission

Step 4. Verify Permissions

Navigate to

[Site Collection URL]/_layouts/15/appprincipals.aspx

Verify Permissions

Conclusion

SharePoint add-ins offer developers a versatile platform for extending the functionality of SharePoint sites. Through careful management of permissions, developers can ensure that add-ins have appropriate access levels, bolstering security. The distinction between SharePoint-hosted and provider-hosted add-ins streamlines deployment processes, while adherence to security best practices, such as HTML encoding of the Client Secret, safeguards sensitive information. Additionally, the flexibility of token generation add-ins facilitates seamless authentication for custom REST API calls, enhancing interoperability and enabling the creation of robust, tailored solutions within the SharePoint ecosystem. Overall, by leveraging the capabilities of SharePoint add-ins and adhering to established guidelines, developers can create powerful, secure, and scalable solutions that meet the diverse needs of SharePoint users.

Next Step

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