Add more nodes for agents, loaders

packages/components/nodes/prompts/ChatPromptTemplate/ChatPromptTemplate.ts

@@ -0,0 +1,57 @@
+import { INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getBaseClasses } from '../../../src/utils'
+
+class ChatPromptTemplate_Prompts implements INode {
+    label: string
+    name: string
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'Chat Prompt Template'
+        this.name = 'chatPromptTemplate'
+        this.type = 'ChatPromptTemplate'
+        this.icon = 'prompt.svg'
+        this.category = 'Prompts'
+        this.description = 'Schema to represent a chat prompt'
+        this.inputs = [
+            {
+                label: 'System Message',
+                name: 'systemMessagePrompt',
+                type: 'string',
+                rows: 3,
+                placeholder: `You are a helpful assistant that translates {input_language} to {output_language}.`
+            },
+            {
+                label: 'Human Message',
+                name: 'humanMessagePrompt',
+                type: 'string',
+                rows: 3,
+                placeholder: `{text}`
+            }
+        ]
+    }
+
+    async getBaseClasses(): Promise<string[]> {
+        const { ChatPromptTemplate } = await import('langchain/prompts')
+        return getBaseClasses(ChatPromptTemplate)
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const { ChatPromptTemplate, SystemMessagePromptTemplate, HumanMessagePromptTemplate } = await import('langchain/prompts')
+        const systemMessagePrompt = nodeData.inputs?.systemMessagePrompt as string
+        const humanMessagePrompt = nodeData.inputs?.humanMessagePrompt as string
+
+        const prompt = ChatPromptTemplate.fromPromptMessages([
+            SystemMessagePromptTemplate.fromTemplate(systemMessagePrompt),
+            HumanMessagePromptTemplate.fromTemplate(humanMessagePrompt)
+        ])
+        return prompt
+    }
+}
+
+module.exports = { nodeClass: ChatPromptTemplate_Prompts }

packages/components/nodes/prompts/ChatPromptTemplate/prompt.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-terminal-2" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+   <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
+   <path d="M8 9l3 3l-3 3"></path>
+   <path d="M13 15l3 0"></path>
+   <path d="M3 4m0 2a2 2 0 0 1 2 -2h14a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-14a2 2 0 0 1 -2 -2z"></path>
+</svg>

packages/components/nodes/prompts/FewShotPromptTemplate/FewShotPromptTemplate.ts

@@ -0,0 +1,112 @@
+import { INode, INodeData, INodeParams } from '../../../src/Interface'
+import { getBaseClasses, getInputVariables } from '../../../src/utils'
+
+class FewShotPromptTemplate_Prompts implements INode {
+    label: string
+    name: string
+    description: string
+    type: string
+    icon: string
+    category: string
+    baseClasses: string[]
+    inputs: INodeParams[]
+
+    constructor() {
+        this.label = 'Few Shot Prompt Template'
+        this.name = 'fewShotPromptTemplate'
+        this.type = 'FewShotPromptTemplate'
+        this.icon = 'prompt.svg'
+        this.category = 'Prompts'
+        this.description = 'Prompt template you can build with examples'
+        this.inputs = [
+            {
+                label: 'Examples',
+                name: 'examples',
+                type: 'string',
+                rows: 5,
+                placeholder: `[
+  { "word": "happy", "antonym": "sad" },
+  { "word": "tall", "antonym": "short" },
+]`
+            },
+            {
+                label: 'Example Prompt',
+                name: 'examplePrompt',
+                type: 'BasePromptTemplate'
+            },
+            {
+                label: 'Prefix',
+                name: 'prefix',
+                type: 'string',
+                rows: 3,
+                placeholder: `Give the antonym of every input`
+            },
+            {
+                label: 'Suffix',
+                name: 'suffix',
+                type: 'string',
+                rows: 3,
+                placeholder: `Word: {input}\nAntonym:`
+            },
+            {
+                label: 'Example Seperator',
+                name: 'exampleSeparator',
+                type: 'string',
+                placeholder: `\n\n`
+            },
+            {
+                label: 'Template Format',
+                name: 'templateFormat',
+                type: 'options',
+                options: [
+                    {
+                        label: 'f-string',
+                        name: 'f-string'
+                    },
+                    {
+                        label: 'jinja-2',
+                        name: 'jinja-2'
+                    }
+                ],
+                default: `f-string`
+            }
+        ]
+    }
+
+    async getBaseClasses(): Promise<string[]> {
+        const { FewShotPromptTemplate } = await import('langchain/prompts')
+        return getBaseClasses(FewShotPromptTemplate)
+    }
+
+    async init(nodeData: INodeData): Promise<any> {
+        const { FewShotPromptTemplate } = await import('langchain/prompts')
+
+        const examplesStr = nodeData.inputs?.examples as string
+
+        const prefix = nodeData.inputs?.prefix as string
+        const suffix = nodeData.inputs?.suffix as string
+        const exampleSeparator = nodeData.inputs?.exampleSeparator as string
+        const templateFormat = nodeData.inputs?.templateFormat
+        const examplePrompt = nodeData.inputs?.examplePrompt
+
+        const inputVariables = getInputVariables(suffix)
+        const examples = JSON.parse(examplesStr.replace(/\s/g, ''))
+
+        try {
+            const prompt = new FewShotPromptTemplate({
+                examples,
+                examplePrompt,
+                prefix,
+                suffix,
+                inputVariables,
+                exampleSeparator,
+                templateFormat
+            })
+            return prompt
+        } catch (e) {
+            throw new Error(e)
+        }
+    }
+}
+
+module.exports = { nodeClass: FewShotPromptTemplate_Prompts }

packages/components/nodes/prompts/FewShotPromptTemplate/prompt.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-terminal-2" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
+   <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
+   <path d="M8 9l3 3l-3 3"></path>
+   <path d="M13 15l3 0"></path>
+   <path d="M3 4m0 2a2 2 0 0 1 2 -2h14a2 2 0 0 1 2 2v12a2 2 0 0 1 -2 2h-14a2 2 0 0 1 -2 -2z"></path>
+</svg>

packages/components/nodes/prompts/PromptTemplate/PromptTemplate.ts

@@ -17,15 +17,14 @@ class PromptTemplate_Prompts implements INode {
         this.type = 'PromptTemplate'
         this.icon = 'prompt.svg'
         this.category = 'Prompts'
-        this.description = 'Schema to represent a basic prompt for an LLM. Template can only contains 1 literal string {}'
+        this.description = 'Schema to represent a basic prompt for an LLM'
         this.inputs = [
             {
                 label: 'Template',
                 name: 'template',
                 type: 'string',
                 rows: 5,
-                default: 'What is a good name for a company that makes {product}?',
-                placeholder: 'What is a good name for a company that makes {product}?'
+                placeholder: `What is a good name for a company that makes {product}?`
             }
         ]
     }
@@ -42,10 +41,11 @@ class PromptTemplate_Prompts implements INode {
         const inputVariables = getInputVariables(template)
 
         try {
-            const prompt = new PromptTemplate({
+            const options = {
                 template,
-                inputVariables: inputVariables
-            })
+                inputVariables
+            }
+            const prompt = new PromptTemplate(options)
             return prompt
         } catch (e) {
             throw new Error(e)