Summary:
This article describes configuring an OAuth account to Google Pub/Sub in webMethods.io Integration Workflow.
Pre-requisites:
• User needs to have a Google account.
• Working webMethods.io Integration tenant.
Contents:
Section 1: Configure a Google OAuth account.
Section 2: Setting up a Google OAuth account in webMethods.io Integration tenant.
Section 1. Configure a Google OAuth account
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Login to Google Console with the username and password.
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From the projects list, select a project from the dropdown or create a new one if required.
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To use Google Cloud API, the user must enable a Google Cloud Pub/Sub API for a project using console.
i. On the left, click on Navigation Menu.
ii. Under APIs & Services choose Library, select the API and enable it.
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If the APIs & services page isn’t already open, open the console left side menu and select APIs & Services.
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On the left, click Credentials.
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Click + CREATE CREDENTIALS, then select OAuth client ID.
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Users setting up Google Cloud Console for the first time, they need to configure the Consent Screen to get the Client ID click Configure Consent Screen.
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In the next screen choose the user type as External click CREATE.
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The Next screen will show for Edit app registration, provide the App name & User support email.
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Provide the details for the Application home page & Authorized domains.
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Provide the details for Developer contact information & click SAVE AND CONTINUE.
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The Next screen will show for configuring the Scopes, click on ADD OR REMOVE SCOPES then select the API Check box & click UPDATE.
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Click + ADD USERS to add some extra users for the app & click SAVE AND CONTINUE.
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Review the Summary section, then click BACK TO DASHBOARD. Now we have successfully configured the Consent Screen.
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Click +Create Credentials again & Select the appropriate application type (In this case application type is a web application) for your project and enter any additional information required.
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Select Authorized to redirect URI’s and add the redirect URI as OAuth 2.0 Playground and hit Create.
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Note down the Client Id and Client Secret created.
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Open the browser and point the browser to Google Oauth Playground.
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On the right corner of the page, click the gear icon and fill in OAuth Client ID and OAuth Client Secret generated (from Step 16), and click Close.
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On the left side panel, select the scopes required.
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Hit Authorize APIs.
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Click Exchange authorization code for tokens.
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Note down Access Token and Refresh Token.
Section 2: Setting up Google OAuth account in webMethods.io Integration Workflow
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Login to webMethods.io Integration tenant and choose your project or click on “+” to create a new project.
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Choose your workflow or click on “+” to create a new workflow.
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From the right-hand panel of connectors list. Drag and drop a Google Cloud PubSub Connector.
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Click on the gear icon on the connector and choose any predefined operation (Example: list topics) and click on “+” to add an account.
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Fill in the Client Id, Client Secret obtained from Step 8 and Access Token, Refresh Token obtained from Step 22.
Refresh URL: https://www.googleapis.com/oauth2/v4/token
Grant_type: refresh_token -
Click Add and Hit Next and pass the required inputs (In this case list topics requires projectId to be passed).
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Click Save and Run the workflow.
