feat(Mistral AI Node): New node (#16631)

Co-authored-by: Michael Kret <michael.k@radency.com>

packages/nodes-base/nodes/MistralAI/GenericFunctions.ts

@@ -0,0 +1,62 @@
+import type FormData from 'form-data';
+import type {
+	IDataObject,
+	IExecuteFunctions,
+	IHttpRequestMethods,
+	IHttpRequestOptions,
+	JsonObject,
+} from 'n8n-workflow';
+import { NodeApiError } from 'n8n-workflow';
+
+import type { Page } from './types';
+
+export async function mistralApiRequest(
+	this: IExecuteFunctions,
+	method: IHttpRequestMethods,
+	resource: string,
+	body: IDataObject | FormData = {},
+	qs: IDataObject = {},
+): Promise<any> {
+	const options: IHttpRequestOptions = {
+		method,
+		body,
+		qs,
+		url: `https://api.mistral.ai${resource}`,
+		json: true,
+	};
+
+	if (Object.keys(body).length === 0) {
+		delete options.body;
+	}
+	if (Object.keys(qs).length === 0) {
+		delete options.qs;
+	}
+
+	try {
+		return await this.helpers.httpRequestWithAuthentication.call(this, 'mistralCloudApi', options);
+	} catch (error) {
+		throw new NodeApiError(this.getNode(), error as JsonObject);
+	}
+}
+
+export async function encodeBinaryData(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<{ dataUrl: string; fileName: string | undefined }> {
+	const binaryProperty = this.getNodeParameter('binaryProperty', itemIndex);
+	const binaryData = this.helpers.assertBinaryData(itemIndex, binaryProperty);
+	const binaryDataBuffer = await this.helpers.getBinaryDataBuffer(itemIndex, binaryProperty);
+	const base64Data = binaryDataBuffer.toString('base64');
+	const dataUrl = `data:${binaryData.mimeType};base64,${base64Data}`;
+
+	return { dataUrl, fileName: binaryData.fileName };
+}
+
+export function processResponseData(response: IDataObject): IDataObject {
+	const pages = response.pages as Page[];
+	return {
+		...response,
+		extractedText: pages.map((page) => page.markdown).join('\n\n'),
+		pageCount: pages.length,
+	};
+}