How to download attachments from a completed document using REST APIs in Power Automate?

You can automate the process of downloading attachments from a completed document by calling REST APIs in Power Automate. In this setup, BoldSign serves as the trigger app, while HTTP operates as the action app.

Follow the steps below to download attachments from a completed document using REST APIs:

• Open the link Power Automate and create your Power Automate account.
• Then connect your BoldSign account with the Power Automate account by clicking the Connections option and adding BoldSign as the connection.

• Once you have created the connection, click Create, navigate to My flows, and select New flow to create your workflow

• A Designer page will open. Disable the New designer button.

• You will be directed to the trigger page. Choose BoldSign as the trigger app.

• Then choose a Webhook event as Completed and click the Next step button.

• You will be directed to the Action page. Select HTTP(Premium) as the action app.

• Set the method as GET, URL as https://api.boldsign.com/v1/document/downloadAttachment
• In Headers, set the Key as X-API-KEY and the value as your API key. Please refer to this article to get the API Key: API key - API Documentation - BoldSign
• Pass the Query parameters: Document Id and Attachment Id.

• Once done, click the Save button.
• You have successfully configured the API request to download attachments from a completed document in BoldSign. Now, whenever a document is completed, its attachments can be retrieved automatically using Power Automate.