Process only new records
Schedules and retries mean the same data can arrive twice. Without a guard, duplicate rows stack up and every downstream report drifts from reality. An idempotent write step prevents that.
Add a Data Table Get row(s) node before the insert, then a Code filter that compares city and date — only new pairs reach the writer.
Este exercicio faz parte do curso
Intermediate Workflow Automation with n8n
exercicio interativo prático
Transforme teoria em prática com um dos nossos exercicio interativos
Iniciar exercicio