Adding Tavily custom tool (FlowiseAI#4027)

Adding Tavily custom tool

Author: isengartz

packages/components/credentials/TavilyApi.credential.ts

@@ -0,0 +1,25 @@
+import { INodeParams, INodeCredential } from '../src/Interface'
+
+class TavilyApi implements INodeCredential {
+    label: string
+    name: string
+    version: number
+    description: string
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'Tavily API'
+        this.name = 'tavilyApi'
+        this.version = 1.0
+        this.description = 'Tavily API is a real-time API to access Google search results'
+        this.inputs = [
+            {
+                label: 'Tavily Api Key',
+                name: 'tavilyApiKey',
+                type: 'password'
+            }
+        ]
+    }
+}
+
+module.exports = { credClass: TavilyApi }

packages/components/nodes/tools/TavilyAPI/TavilyAPI.ts

@@ -0,0 +1,42 @@
+import { TavilySearchResults } from '@langchain/community/tools/tavily_search'
+import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getBaseClasses, getCredentialData, getCredentialParam } from '../../../src/utils'
+
+class TavilyAPI_Tools implements INode {
+    label: string
+    name: string
+    version: number
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    credential: INodeParams
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'Tavily API'
+        this.name = 'tavilyAPI'
+        this.version = 1.0
+        this.type = 'TavilyAPI'
+        this.icon = 'tavily.svg'
+        this.category = 'Tools'
+        this.description = 'Wrapper around TavilyAPI - a real-time API to access Google search results'
+        this.inputs = []
+        this.credential = {
+            label: 'Connect Credential',
+            name: 'credential',
+            type: 'credential',
+            credentialNames: ['tavilyApi']
+        }
+        this.baseClasses = [this.type, ...getBaseClasses(TavilySearchResults)]
+    }
+
+    async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
+        const credentialData = await getCredentialData(nodeData.credential ?? '', options)
+        const tavilyApiKey = getCredentialParam('tavilyApiKey', credentialData, nodeData)
+        return new TavilySearchResults({ apiKey: tavilyApiKey })
+    }
+}
+
+module.exports = { nodeClass: TavilyAPI_Tools }