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packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/file/index.ts

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+import type { INodeProperties } from 'n8n-workflow';
+
+import * as upload from './upload.operation';
+
+export { upload };
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Operation',
+		name: 'operation',
+		type: 'options',
+		noDataExpression: true,
+		options: [
+			{
+				name: 'Upload Media File',
+				value: 'upload',
+				action: 'Upload a media file',
+				description: 'Upload a file to the Google Gemini API for later use',
+			},
+		],
+		default: 'upload',
+		displayOptions: {
+			show: {
+				resource: ['file'],
+			},
+		},
+	},
+	...upload.description,
+];

packages/@n8n/nodes-langchain/nodes/vendors/GoogleGemini/actions/file/upload.operation.ts

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+import type { IExecuteFunctions, INodeExecutionData, INodeProperties } from 'n8n-workflow';
+import { updateDisplayOptions } from 'n8n-workflow';
+
+import { transferFile } from '../../helpers/utils';
+
+export const properties: INodeProperties[] = [
+	{
+		displayName: 'Input Type',
+		name: 'inputType',
+		type: 'options',
+		default: 'url',
+		options: [
+			{
+				name: 'File URL',
+				value: 'url',
+			},
+			{
+				name: 'Binary File',
+				value: 'binary',
+			},
+		],
+	},
+	{
+		displayName: 'URL',
+		name: 'fileUrl',
+		type: 'string',
+		placeholder: 'e.g. https://example.com/file.pdf',
+		description: 'URL of the file to upload',
+		default: '',
+		displayOptions: {
+			show: {
+				inputType: ['url'],
+			},
+		},
+	},
+	{
+		displayName: 'Input Data Field Name',
+		name: 'binaryPropertyName',
+		type: 'string',
+		default: 'data',
+		placeholder: 'e.g. data',
+		hint: 'The name of the input field containing the binary file data to be processed',
+		description: 'Name of the binary property which contains the file',
+		displayOptions: {
+			show: {
+				inputType: ['binary'],
+			},
+		},
+	},
+];
+
+const displayOptions = {
+	show: {
+		operation: ['upload'],
+		resource: ['file'],
+	},
+};
+
+export const description = updateDisplayOptions(displayOptions, properties);
+
+export async function execute(this: IExecuteFunctions, i: number): Promise<INodeExecutionData[]> {
+	const inputType = this.getNodeParameter('inputType', i, 'url') as string;
+
+	let fileUrl: string | undefined;
+	if (inputType === 'url') {
+		fileUrl = this.getNodeParameter('fileUrl', i, '') as string;
+	}
+
+	const response = await transferFile.call(this, i, fileUrl, 'application/octet-stream');
+	return [
+		{
+			json: response,
+			pairedItem: {
+				item: i,
+			},
+		},
+	];
+}