rivet-json-processor-plugin/src/index.ts

A Rivet plugin to filter and count JSON items.

interface Item {
    NOME: string;
    REFERENCIA: string;
  }
  
  const specificItems: Item[] = [
    { NOME: "Mini Kendo Light - Linear", REFERENCIA: "506" },
    { NOME: "Mini Kendo Lighting", REFERENCIA: "506" },
  ];
  
  export default function (Rivet: any) {
    return {
      processJSON(jsonString: string): string {
        try {
          const data: Item[] = JSON.parse(jsonString);
  
          const filteredData = data.filter((item) =>
            specificItems.some(
              (specific: Item) =>
                specific.NOME === item.NOME &&
                specific.REFERENCIA === item.REFERENCIA
            )
          );
  
          const counts: Record<string, number> = {};
          filteredData.forEach((item) => {
            const key = `${item.NOME} (${item.REFERENCIA})`;
            counts[key] = (counts[key] || 0) + 1;
          });
  
          const result = Object.entries(counts)
            .map(([key, count]) => `${key}: ${count}`)
            .join("\n");
  
          return `Filtered Results:\n${result}`;
        } catch (error) {
          if (error instanceof Error) {
            return `Error processing JSON: ${error.message}`;
          }
          return `An unknown error occurred.`;
        }
      },
    };
  }