louislam/uptime-kuma · error · Error

RabbitMQ Nodes must be valid JSON: ${e.message}

Error message

RabbitMQ Nodes must be valid JSON: ${e.message}

What it means

validate() runs JSON.parse on rabbitmqNodes for RabbitMQ monitors. It must be valid JSON (typically an array of node URLs).

Source

Thrown at server/model/monitor.js:1665

                JSON.parse(this.kafkaProducerBrokers);
            } catch (e) {
                throw new Error(`Kafka Producer Brokers must be valid JSON: ${e.message}`);
            }
        }

        if (this.kafkaProducerSaslOptions) {
            try {
                JSON.parse(this.kafkaProducerSaslOptions);
            } catch (e) {
                throw new Error(`Kafka Producer SASL Options must be valid JSON: ${e.message}`);
            }
        }

        if (this.rabbitmqNodes) {
            try {
                JSON.parse(this.rabbitmqNodes);
            } catch (e) {
                throw new Error(`RabbitMQ Nodes must be valid JSON: ${e.message}`);
            }
        }

        if (this.conditions) {
            try {
                JSON.parse(this.conditions);
            } catch (e) {
                throw new Error(`Conditions must be valid JSON: ${e.message}`);
            }
        }

        if (this.headers) {
            try {
                JSON.parse(this.headers);
            } catch (e) {
                throw new Error(`Headers must be valid JSON: ${e.message}`);
            }
        }

View on GitHub (pinned to 6b5ea01557)

Solutions

1. Provide rabbitmqNodes as valid JSON matching the expected shape
2. Validate with JSON.parse before saving

if (monitor.rabbitmqNodes) { JSON.parse(monitor.rabbitmqNodes); } // throws if invalid

function isValidJsonField(v) { if (!v) return true; try { JSON.parse(v); return true; } catch { return false; } }

try { monitor.validate(); await save(monitor); } catch (e) { /* surface e.message */ }

When it happens

Trigger: rabbitmqNodes contains a non-JSON string (comma-separated nodes, plain text).

Common situations: Pasting node list as newline- or comma-separated text instead of a JSON array.

Related errors

• Invalid RabbitMQ Nodes
• Kafka Producer Brokers must be valid JSON: ${e.message}
• Kafka Producer SASL Options must be valid JSON: ${e.message}
• Conditions must be valid JSON: ${e.message}
• Headers must be valid JSON: ${e.message}

AI-assisted analysis of louislam/uptime-kuma@6b5ea01557 (2026-08-12). Data as JSON: /api/errors/25aa8ae0a1191e4a. Report an issue: GitHub.