@n8n/n8n-nodes-langchain
Version:
211 lines • 6.65 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var edit_operation_exports = {};
__export(edit_operation_exports, {
description: () => description,
execute: () => execute
});
module.exports = __toCommonJS(edit_operation_exports);
var import_n8n_workflow = require("n8n-workflow");
var import_utils = require("../../helpers/utils");
var import_transport = require("../../transport");
var import_descriptions = require("../descriptions");
function isImagesParameter(param) {
if (typeof param !== "object" || param === null) {
return false;
}
const paramObj = param;
if (!("values" in paramObj)) {
return true;
}
if (!Array.isArray(paramObj.values)) {
return false;
}
return paramObj.values.every((item) => {
if (typeof item !== "object" || item === null) {
return false;
}
const itemObj = item;
if (!("binaryPropertyName" in itemObj)) {
return true;
}
return typeof itemObj.binaryPropertyName === "string" || itemObj.binaryPropertyName === void 0;
});
}
function isGenerateContentResponse(response) {
if (typeof response !== "object" || response === null) {
return false;
}
const responseObj = response;
if (!("candidates" in responseObj) || !Array.isArray(responseObj.candidates)) {
return false;
}
return responseObj.candidates.every((candidate) => {
if (typeof candidate !== "object" || candidate === null) {
return false;
}
const candidateObj = candidate;
if (!("content" in candidateObj) || typeof candidateObj.content !== "object" || candidateObj.content === null) {
return false;
}
const contentObj = candidateObj.content;
return "parts" in contentObj && Array.isArray(contentObj.parts);
});
}
const properties = [
(0, import_descriptions.modelRLC)("imageEditModelSearch"),
{
displayName: "Prompt",
name: "prompt",
type: "string",
placeholder: "e.g. combine the first image with the second image",
description: "Instruction describing how to edit the image",
default: "",
typeOptions: {
rows: 2
}
},
{
displayName: "Images",
name: "images",
type: "fixedCollection",
placeholder: "Add Image",
typeOptions: {
multipleValues: true,
multipleValueButtonText: "Add Image"
},
default: { values: [{ binaryPropertyName: "data" }] },
description: "Add one or more binary fields to include images with your prompt",
options: [
{
displayName: "Image",
name: "values",
values: [
{
displayName: "Binary Field Name",
name: "binaryPropertyName",
type: "string",
default: "data",
placeholder: "e.g. data",
description: "The name of the binary field containing the image data"
}
]
}
]
},
{
displayName: "Options",
name: "options",
placeholder: "Add Option",
type: "collection",
default: {},
options: [
{
displayName: "Put Output in Field",
name: "binaryPropertyOutput",
type: "string",
default: "edited",
hint: "The name of the output field to put the binary file data in"
}
]
}
];
const displayOptions = {
show: {
operation: ["edit"],
resource: ["image"]
}
};
const description = (0, import_n8n_workflow.updateDisplayOptions)(displayOptions, properties);
async function execute(i) {
const prompt = this.getNodeParameter("prompt", i, "");
let model = this.getNodeParameter("modelId", i, "", { extractValue: true });
if (!model) {
model = "models/gemini-2.5-flash-image-preview";
}
const binaryPropertyOutput = this.getNodeParameter("options.binaryPropertyOutput", i, "edited");
const outputKey = typeof binaryPropertyOutput === "string" ? binaryPropertyOutput : "data";
const imagesParam = this.getNodeParameter("images", i, {
values: [{ binaryPropertyName: "data" }]
});
if (!isImagesParameter(imagesParam)) {
throw new Error("Invalid images parameter format");
}
const imagesUi = imagesParam.values ?? [];
const imageFieldNames = imagesUi.map((v) => v.binaryPropertyName).filter((n) => Boolean(n));
const fileParts = [];
for (const fieldName of imageFieldNames) {
const bin = this.helpers.assertBinaryData(i, fieldName);
const buf = await this.helpers.getBinaryDataBuffer(i, fieldName);
const uploaded = await import_utils.uploadFile.call(this, buf, bin.mimeType);
fileParts.push({ fileData: { fileUri: uploaded.fileUri, mimeType: uploaded.mimeType } });
}
const generationConfig = {
responseModalities: ["IMAGE"]
};
const body = {
contents: [
{
role: "user",
parts: [...fileParts, { text: prompt }]
}
],
generationConfig
};
const response = await import_transport.apiRequest.call(
this,
"POST",
`/v1beta/${model}:generateContent`,
{
body
}
);
if (!isGenerateContentResponse(response)) {
throw new Error("Invalid response format from Gemini API");
}
const promises = response.candidates.map(async (candidate) => {
const imagePart = candidate.content.parts.find((part) => "inlineData" in part);
if (!imagePart?.inlineData?.data) {
throw new Error("No image data returned from Gemini API");
}
const bufferOut = Buffer.from(imagePart.inlineData.data, "base64");
const binaryOut = await this.helpers.prepareBinaryData(
bufferOut,
"image.png",
imagePart.inlineData.mimeType
);
return {
binary: {
[outputKey]: binaryOut
},
json: {
...binaryOut,
data: void 0
},
pairedItem: { item: i }
};
});
return await Promise.all(promises);
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
description,
execute
});
//# sourceMappingURL=edit.operation.js.map