dtamind-components
Version:
Apps integration for Dtamind. Contain Nodes and Credentials.
288 lines • 10.4 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const documents_1 = require("@langchain/core/documents");
const axios_1 = __importDefault(require("axios"));
const https = __importStar(require("https"));
const base_1 = require("langchain/document_loaders/base");
const lodash_1 = require("lodash");
const src_1 = require("../../../src");
const utils_1 = require("../../../src/utils");
class API_DocumentLoaders {
constructor() {
this.label = 'API Loader';
this.name = 'apiLoader';
this.version = 2.1;
this.type = 'Document';
this.icon = 'api.svg';
this.category = 'Document Loaders';
this.description = `Load data from an API`;
this.baseClasses = [this.type];
this.inputs = [
{
label: 'Text Splitter',
name: 'textSplitter',
type: 'TextSplitter',
optional: true
},
{
label: 'Method',
name: 'method',
type: 'options',
options: [
{
label: 'GET',
name: 'GET'
},
{
label: 'POST',
name: 'POST'
}
]
},
{
label: 'URL',
name: 'url',
type: 'string'
},
{
label: 'Headers',
name: 'headers',
type: 'json',
additionalParams: true,
optional: true
},
{
label: 'SSL Certificate',
description: 'Please upload a SSL certificate file in either .pem or .crt',
name: 'caFile',
type: 'file',
fileType: '.pem, .crt',
additionalParams: true,
optional: true
},
{
label: 'Body',
name: 'body',
type: 'json',
description: 'JSON body for the POST request. If not specified, agent will try to figure out itself from AIPlugin if provided',
additionalParams: true,
optional: true
},
{
label: 'Additional Metadata',
name: 'metadata',
type: 'json',
description: 'Additional metadata to be added to the extracted documents',
optional: true,
additionalParams: true
},
{
label: 'Omit Metadata Keys',
name: 'omitMetadataKeys',
type: 'string',
rows: 4,
description: 'Each document loader comes with a default set of metadata keys that are extracted from the document. You can use this field to omit some of the default metadata keys. The value should be a list of keys, seperated by comma. Use * to omit all metadata keys execept the ones you specify in the Additional Metadata field',
placeholder: 'key1, key2, key3.nestedKey1',
optional: true,
additionalParams: true
}
];
this.outputs = [
{
label: 'Document',
name: 'document',
description: 'Array of document objects containing metadata and pageContent',
baseClasses: [...this.baseClasses, 'json']
},
{
label: 'Text',
name: 'text',
description: 'Concatenated string from pageContent of documents',
baseClasses: ['string', 'json']
}
];
}
async init(nodeData, _, options) {
const headers = nodeData.inputs?.headers;
const caFileBase64 = nodeData.inputs?.caFile;
const url = nodeData.inputs?.url;
const body = nodeData.inputs?.body;
const method = nodeData.inputs?.method;
const textSplitter = nodeData.inputs?.textSplitter;
const metadata = nodeData.inputs?.metadata;
const _omitMetadataKeys = nodeData.inputs?.omitMetadataKeys;
const output = nodeData.outputs?.output;
let omitMetadataKeys = [];
if (_omitMetadataKeys) {
omitMetadataKeys = _omitMetadataKeys.split(',').map((key) => key.trim());
}
const apiLoaderParam = {
url,
method
};
if (headers) {
const parsedHeaders = typeof headers === 'object' ? headers : JSON.parse(headers);
apiLoaderParam.headers = parsedHeaders;
}
if (caFileBase64.startsWith('FILE-STORAGE::')) {
let file = caFileBase64.replace('FILE-STORAGE::', '');
file = file.replace('[', '');
file = file.replace(']', '');
const orgId = options.orgId;
const chatflowid = options.chatflowid;
const fileData = await (0, src_1.getFileFromStorage)(file, orgId, chatflowid);
apiLoaderParam.ca = fileData.toString();
}
else {
const splitDataURI = caFileBase64.split(',');
splitDataURI.pop();
const bf = Buffer.from(splitDataURI.pop() || '', 'base64');
apiLoaderParam.ca = bf.toString('utf-8');
}
if (body) {
const parsedBody = typeof body === 'object' ? body : JSON.parse(body);
apiLoaderParam.body = parsedBody;
}
const loader = new ApiLoader(apiLoaderParam);
let docs = [];
if (textSplitter) {
docs = await loader.load();
docs = await textSplitter.splitDocuments(docs);
}
else {
docs = await loader.load();
}
if (metadata) {
const parsedMetadata = typeof metadata === 'object' ? metadata : JSON.parse(metadata);
docs = docs.map((doc) => ({
...doc,
metadata: _omitMetadataKeys === '*'
? {
...parsedMetadata
}
: (0, lodash_1.omit)({
...doc.metadata,
...parsedMetadata
}, omitMetadataKeys)
}));
}
else {
docs = docs.map((doc) => ({
...doc,
metadata: _omitMetadataKeys === '*'
? {}
: (0, lodash_1.omit)({
...doc.metadata
}, omitMetadataKeys)
}));
}
if (output === 'document') {
return docs;
}
else {
let finaltext = '';
for (const doc of docs) {
finaltext += `${doc.pageContent}\n`;
}
return (0, utils_1.handleEscapeCharacters)(finaltext, false);
}
}
}
class ApiLoader extends base_1.BaseDocumentLoader {
constructor({ url, headers, body, method, ca }) {
super();
this.url = url;
this.headers = headers;
this.body = body;
this.method = method;
this.ca = ca;
}
async load() {
if (this.method === 'POST') {
return this.executePostRequest(this.url, this.headers, this.body, this.ca);
}
else {
return this.executeGetRequest(this.url, this.headers, this.ca);
}
}
async executeGetRequest(url, headers, ca) {
try {
const config = {};
if (headers) {
config.headers = headers;
}
if (ca) {
config.httpsAgent = new https.Agent({
ca: ca
});
}
const response = await axios_1.default.get(url, config);
const responseJsonString = JSON.stringify(response.data, null, 2);
const doc = new documents_1.Document({
pageContent: responseJsonString,
metadata: {
url
}
});
return [doc];
}
catch (error) {
throw new Error(`Failed to fetch ${url}: ${error}`);
}
}
async executePostRequest(url, headers, body, ca) {
try {
const config = {};
if (headers) {
config.headers = headers;
}
if (ca) {
config.httpsAgent = new https.Agent({
ca: ca
});
}
const response = await axios_1.default.post(url, body ?? {}, config);
const responseJsonString = JSON.stringify(response.data, null, 2);
const doc = new documents_1.Document({
pageContent: responseJsonString,
metadata: {
url
}
});
return [doc];
}
catch (error) {
throw new Error(`Failed to post ${url}: ${error}`);
}
}
}
module.exports = {
nodeClass: API_DocumentLoaders
};
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