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April 22, 2025 13:04
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Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,205 @@ [ { "id": "d197b28e9395b61b", "type": "ui-file-input", "z": "e93f3133440568a7", "group": "8948f2c8ad9f604f", "name": "", "order": 1, "width": 0, "height": 0, "topic": "topic", "topicType": "msg", "label": "File Input", "icon": "paperclip", "allowMultiple": false, "accept": "", "className": "", "x": 600, "y": 340, "wires": [ [ "81ca42c6330d3361", "d649e707401cb0a7" ] ] }, { "id": "1308ad842a729aae", "type": "debug", "z": "e93f3133440568a7", "name": "SUCCESS", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "true", "targetType": "full", "statusVal": "", "statusType": "auto", "x": 790, "y": 380, "wires": [] }, { "id": "81ca42c6330d3361", "type": "function", "z": "e93f3133440568a7", "name": "Parse PDF", "func": "/**\n * Extracts text content from a PDF buffer using the globally available pdf-parse library.\n * Assumes 'pdfParse' has been added to functionGlobalContext in settings.js.\n * Expects msg.payload to be a Buffer containing the PDF data.\n * Sends the result to one of two outputs:\n * - Output 1: Success - msg.payload contains the extracted text (string).\n * msg.pdfInfo contains metadata from pdf-parse.\n * - Output 2: Failure - Original msg with msg.error containing the error object.\n *\n * Requires the 'pdf-parse' library (https://www.npmjs.com/package/pdf-parse)\n * Library MUST be configured in settings.js -> functionGlobalContext.\n * @param {NodeMessage & {payload: Buffer}} msg The input message.\n */\n\n// --- Input Validation ---\n// Check if pdfParse is available globally (configured in settings.js)\nif (typeof pdfParse === 'undefined') {\n // node.error can take the msg object as the second argument\n node.error(\"Global 'pdfParse' not found. Ensure 'pdf-parse' is installed and added to functionGlobalContext in settings.js, then restart Node-RED.\", msg);\n // Send to error output\n node.send([null, msg]);\n return; // Stop execution\n}\n\nif (!msg.payload || !Buffer.isBuffer(msg.payload)) {\n // CORRECTED: node.warn only takes one argument (the message string)\n node.warn(\"msg.payload is missing or not a Buffer.\");\n // Send to error output\n msg.error = new Error(\"Input payload is not a valid Buffer.\");\n node.send([null, msg]);\n return; // Stop execution\n}\n\nconst pdfBuffer = msg.payload;\n// node.log only takes one argument\nnode.log(`Received PDF buffer, size: ${pdfBuffer.length} bytes. Starting parsing.`);\n\n// --- Asynchronous PDF Parsing ---\n// Use the globally available pdfParse function\npdfParse(pdfBuffer)\n .then(function(data) {\n // --- Success ---\n // node.log only takes one argument\n node.log(`Successfully parsed PDF: ${data.numpages} pages, ${data.text.length} characters.`);\n\n // Prepare the output message for the success path (Output 1)\n msg.payload = data.text; // Replace buffer with extracted text\n\n // Optionally add other extracted info\n msg.pdfInfo = {\n numPages: data.numpages,\n numRender: data.numrender,\n info: data.info,\n metadata: data.metadata,\n version: data.version\n };\n\n // Send the message to the first output\n node.send([msg, null]);\n\n })\n .catch(function(err) {\n // --- Failure ---\n // node.error can take the msg object as the second argument\n node.error(\"Error parsing PDF: \" + err.message, msg);\n\n // Prepare the output message for the error path (Output 2)\n msg.error = err; // Add the error object\n\n // Send the original message (with error info) to the second output\n node.send([null, msg]);\n });\n\n// Return null because the work is asynchronous and handled by node.send()\nreturn null;", "outputs": 2, "timeout": 0, "noerr": 0, "initialize": "", "finalize": "", "libs": [ { "var": "pdfParse", "module": "pdf-parse" } ], "x": 610, "y": 400, "wires": [ [ "1308ad842a729aae" ], [ "dd667b4ee49e474c" ] ] }, { "id": "dd667b4ee49e474c", "type": "debug", "z": "e93f3133440568a7", "name": "FAIL", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "true", "targetType": "full", "statusVal": "", "statusType": "auto", "x": 770, "y": 420, "wires": [] }, { "id": "d649e707401cb0a7", "type": "debug", "z": "e93f3133440568a7", "name": "RAW UPLOAD", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "true", "targetType": "full", "statusVal": "", "statusType": "auto", "x": 780, "y": 340, "wires": [] }, { "id": "01fb87c40c24d01c", "type": "comment", "z": "e93f3133440568a7", "name": "UI Element, kann ueber die einstellungen optisch angepasst werden", "info": "UI Element,", "x": 280, "y": 340, "wires": [] }, { "id": "8948f2c8ad9f604f", "type": "ui-group", "name": "Group 1", "page": "afdf2c859e3351de", "width": 6, "height": 1, "order": 1, "showTitle": true, "className": "", "visible": true, "disabled": false, "groupType": "default" }, { "id": "afdf2c859e3351de", "type": "ui-page", "name": "Page 1", "ui": "c44752c1f7bc883a", "path": "/page1", "icon": "home", "layout": "grid", "theme": "91ce8000ccb00b38", "breakpoints": [ { "name": "Default", "px": 0, "cols": 3 }, { "name": "Tablet", "px": 576, "cols": 6 }, { "name": "Small Desktop", "px": 768, "cols": 9 }, { "name": "Desktop", "px": 1024, "cols": 12 } ], "order": 1, "className": "", "visible": "true", "disabled": "false" }, { "id": "c44752c1f7bc883a", "type": "ui-base", "name": "My Dashboard", "path": "/dashboard", "appIcon": "", "includeClientData": true, "acceptsClientConfig": [ "ui-notification", "ui-control" ], "showPathInSidebar": false, "headerContent": "page", "navigationStyle": "default", "titleBarStyle": "default", "showReconnectNotification": true, "notificationDisplayTime": 1, "showDisconnectNotification": true, "allowInstall": true }, { "id": "91ce8000ccb00b38", "type": "ui-theme", "name": "Default Theme", "colors": { "surface": "#ffffff", "primary": "#0094CE", "bgPage": "#eeeeee", "groupBg": "#ffffff", "groupOutline": "#cccccc" }, "sizes": { "density": "default", "pagePadding": "12px", "groupGap": "12px", "groupBorderRadius": "4px", "widgetGap": "12px" } } ]