[ { "id": "6301e063009d9ad9", "type": "function", "z": "5393de7ec99b351f", "name": "Send SQS message", "func": "// Import the SendMessageCommand from the AWS SDK\nconst { SendMessageCommand } = awsSdkClientSqs;\n\n// Retrieve the client and config from the node context (varaibles defined in \"On Start\" tab)\nconst client = this.client;\nconst config = this.config;\n// Define the parameters for sending a message\nconst params = {\n MessageBody: JSON.stringify(msg, this.removeCircular()),\n QueueUrl: config.queueUrl\n};\n// Create the command for sending a message\nconst command = new SendMessageCommand(params);\n\nasync function sendMessage() {\n try {\n // Send the message and wait for the response\n const data = await client.send(command);\n node.log(\"Message sent successfully. Message ID: \" + data.MessageId);\n\n // Attach the response to msg.payload and send the message\n msg.payload = data;\n node.send(msg);\n } catch (error) {\n node.error(\"Error sending message: \" + error);\n }\n};\n\n\n// Execute the sendMessage function asynchronously\nsendMessage();\n\n// Return null since output is handled asynchronously via node.send() method\nreturn null;\n\n", "outputs": 1, "timeout": 0, "noerr": 0, "initialize": "// Import required classes from the AWS SDK v3 package\nconst { SQSClient } = awsSdkClientSqs;\n\n// Group configuration values in an object\nthis.config = {\n queueUrl: global.get(\"SECRETS.AWS_SQS_QUEUE_URL\"),\n accessKey: global.get(\"SECRETS.AWS_SQS_API_KEY\"),\n accessSecret: global.get(\"SECRETS.AWS_SQS_API_SECRET\"),\n region: global.get(\"SECRETS.AWS_SQS_QUEUE_REGION\")\n};\n\n// Create an SQS client and store it as a property of the node (this.client)\nthis.client = new SQSClient({\n region: this.config.region,\n apiVersion: '2012-11-05',\n credentials: {\n accessKeyId: this.config.accessKey,\n secretAccessKey: this.config.accessSecret\n }\n});\n\n// Define a helper function for safely stringifying the msg (avoiding circular references)\nthis.removeCircular = function () {\n const seen = new WeakSet();\n return (key, value) => {\n if (typeof value === 'object' && value !== null) {\n if (seen.has(value)) {\n return undefined;\n }\n seen.add(value);\n }\n return value;\n };\n};\n", "finalize": "", "libs": [ { "var": "awsSdkClientSqs", "module": "@aws-sdk/client-sqs" } ], "x": 250, "y": 120, "wires": [ [ "950ef4b5ce121ab4" ] ], "icon": "node-red/envelope.svg" }, { "id": "402a4536b2a35988", "type": "inject", "z": "5393de7ec99b351f", "name": "", "props": [ { "p": "payload.test", "v": "", "vt": "date" }, { "p": "payload.hello", "v": "world", "vt": "str" } ], "repeat": "", "crontab": "", "once": false, "onceDelay": 0.1, "topic": "", "x": 105, "y": 120, "wires": [ [ "6301e063009d9ad9" ] ], "l": false }, { "id": "950ef4b5ce121ab4", "type": "debug", "z": "5393de7ec99b351f", "name": "Send message", "active": true, "tosidebar": true, "console": false, "tostatus": true, "complete": "true", "targetType": "full", "statusVal": "", "statusType": "counter", "x": 405, "y": 120, "wires": [], "l": false }, { "id": "b91ea294d147b33a", "type": "function", "z": "5393de7ec99b351f", "name": "Reveive SQS message", "func": "// Import required commands from the AWS SDK v3 package\nconst { ReceiveMessageCommand } = awsSdkClientSqs;\n\n// Retrieve the client and config from the node context (set in \"On Start\")\nconst client = this.client;\nconst config = this.config;\n\n// Define the parameters for receiving messages\nconst params = {\n QueueUrl: config.queueUrl, // Your SQS queue's URL\n MaxNumberOfMessages: 10, // Maximum messages to receive (max 10)\n WaitTimeSeconds: 10 // Enable long polling (in seconds)\n};\n\nasync function receiveMessages() {\n try {\n // Create the command for receiving messages\n const command = new ReceiveMessageCommand(params);\n\n // Send the command and wait for the response\n const data = await client.send(command);\n\n if (data.Messages && data.Messages.length > 0) {\n for (const message of data.Messages) {\n // Safely parse the message body (if JSON, otherwise leave it as a string)\n message.Body = safeJSONParse(message.Body);\n\n // Process the message by sending it along the flow\n node.send(message);\n\n // Delete the message from the queue to prevent reprocessing\n await deleteMessageFromQueue(message, client, config);\n }\n }\n } catch (error) {\n node.error(\"Error receiving messages: \" + error);\n }\n}\n\n// Helper function to safely parse JSON; returns original string if parsing fails\nfunction safeJSONParse(input) {\n try {\n return JSON.parse(input);\n } catch (err) {\n return input;\n }\n}\n\n// Helper function to delete a message from the SQS queue\nasync function deleteMessageFromQueue(message, client, config) {\n try {\n const { DeleteMessageCommand } = awsSdkClientSqs;\n const deleteParams = {\n QueueUrl: config.queueUrl,\n ReceiptHandle: message.ReceiptHandle\n };\n const deleteCommand = new DeleteMessageCommand(deleteParams);\n await client.send(deleteCommand);\n } catch (deleteError) {\n node.error(\"Error deleting message: \" + deleteError);\n }\n}\n\n// Execute the receiveMessages function\nreceiveMessages();\n\n// Return null since output is handled asynchronously via node.send()\nreturn null;\n\n\n", "outputs": 1, "timeout": 0, "noerr": 0, "initialize": "// Import required classes from the AWS SDK v3 package\nconst { SQSClient } = awsSdkClientSqs;\n\n// Group configuration values in an object\nthis.config = {\n queueUrl: global.get(\"SECRETS.AWS_SQS_QUEUE_URL\"),\n accessKey: global.get(\"SECRETS.AWS_SQS_API_KEY\"),\n accessSecret: global.get(\"SECRETS.AWS_SQS_API_SECRET\"),\n region: global.get(\"SECRETS.AWS_SQS_QUEUE_REGION\")\n};\n\n// Create an SQS client and store it as a property of the node (this.client)\nthis.client = new SQSClient({\n region: this.config.region,\n apiVersion: '2012-11-05',\n credentials: {\n accessKeyId: this.config.accessKey,\n secretAccessKey: this.config.accessSecret\n }\n});\n\nnode.log(\"SQS client initialized for receiving messages.\");\n", "finalize": "", "libs": [ { "var": "awsSdkClientSqs", "module": "@aws-sdk/client-sqs" } ], "x": 260, "y": 220, "wires": [ [ "764c9856301e1ca7" ] ], "icon": "font-awesome/fa-envelope-open" }, { "id": "764c9856301e1ca7", "type": "debug", "z": "5393de7ec99b351f", "name": "received messages", "active": true, "tosidebar": true, "console": false, "tostatus": true, "complete": "Body", "targetType": "msg", "statusVal": "", "statusType": "counter", "x": 405, "y": 220, "wires": [], "l": false }, { "id": "c02cf6aae1699486", "type": "inject", "z": "5393de7ec99b351f", "name": "", "props": [], "repeat": "15", "crontab": "", "once": true, "onceDelay": 0.1, "topic": "", "x": 105, "y": 220, "wires": [ [ "b91ea294d147b33a" ] ], "icon": "font-awesome/fa-refresh", "l": false }, { "id": "4d1b4b537afa8320", "type": "comment", "z": "5393de7ec99b351f", "name": "Continuously receives messages", "info": "", "x": 190, "y": 180, "wires": [] }, { "id": "f991ef4638d5c030", "type": "comment", "z": "5393de7ec99b351f", "name": "Send message to sqs queue", "info": "", "x": 170, "y": 60, "wires": [] }, { "id": "5eba11eb0b512a7f", "type": "comment", "z": "5393de7ec99b351f", "name": "This flow expects secrets to be defined in qibb's Secret Manager: \\n AWS_SQS_QUEUE_URL \\n AWS_SQS_API_KEY \\n AWS_SQS_API_SECRET \\n AWS_SQS_QUEUE_REGION", "info": "Expected space secrets:\nAWS_SQS_QUEUE_URL\nAWS_SQS_API_KEY\nAWS_SQS_API_SECRET\nAWS_SQS_QUEUE_REGION", "x": 720, "y": 100, "wires": [] } ]