This guide explains how to integrate Google Search and spelling correction into your chatbot using OmniChat. Learn to set up custom search engines, enable spelling correction, and use entities for more accurate search results.

The Google search features give your chatbot the ability to search for answers on Google and your website and automatically correct misspelled user questions. To start using it, follow the steps below.

• Register at https://programmablesearchengine.google.com/.
• Create a search and setup it is as you want. We recommend to add only your website and Wikipedia if you want your chatbot to reply to general questions, leave disabled the option Search the entire web. Use the setting Entities to exclude invalid results.
• Go to Edit search engine > Setup > Basic and copy the Search engine ID value, paste it in OmniChat.
• To get the API key visit https://developers.google.com/custom-search/v1/overview and click Get a key.

Spelling correction

In the case where Dialogflow is unable to find the appropriate response to the user’s message, this function verifies if there are any spelling errors. If any such errors exist, Dialogflow is prompted again with the correctly spelled version of the message for an accurate response. Although it has a lower priority, this feature can still work together with the OpenAI Dialogflow spelling correction feature.

Entities

The Entities setting analyze the user’s message and recognize and extract entities like cities, events, dates, and more. Use it to exclude invalid results returned by Google search. To enable this setting follow the steps below.

• Log in to https://console.cloud.google.com with your Google account and select the project of your Dialogflow Agent.
• Enter Cloud Natural Language API in the search bar at the top, select Cloud Natural Language API and enable the API .

• Enable the billing by clicking Left menu > Billing and by enabling a billing account with a valid payment method. Enable billing for the project of your Dialogflow agent.

Information

• The Google search is performed only if the chatbot does not know the answer to the user’s question and if the length of the user’s message is greater than 4 characters.
• If the Google search returns a result, the Dialogflow context google-search is automatically activated. The context contains the attribute link which is the website’s link of the Google search result. Use the context to create a new intent that provides the link, if the user sends a message like tell me more or I want to know more.

• Google Search is not required to activate the spelling correction. You can disable Google Search and activate only spelling correction.
• If Google Search is active, it will have priority over OpenAI.