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read csv column and check any similar data existing in MongoDB collection or not with findall instead of for loop query

Jaimin Patel answered on October 3, 2023 Popularity 1/10 Helpfulness 1/10

answer read csv column and check any similar data existing in MongoDB collection or not with findall instead of for loop query

read csv column and check any similar data existing in MongoDB collection or not with findall instead of for loop query

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// Define your MongoDB connection settings
const mongoURI = "mongodb://localhost:27017/";
const dbName = "your_database";
const collectionName = "your_collection";
const csvFilePath = "path_to_your_csv_file.csv";
const columnNameToCheck = "column_name_to_check";

// Connect to MongoDB
const conn = new Mongo(mongoURI);
const db = conn.getDB(dbName);

// Load CSV file into an array
const csvFile = cat(csvFilePath);
const csvData = csvFile.split('\n').map(row => row.split(','));

// Extract the values from the specified column
const valuesToCheck = csvData.map(row => row[columnNameToCheck].trim());

// Find all documents in the MongoDB collection that match any of the values
const existingDocuments = db[collectionName].find({ fieldName: { $in: valuesToCheck } });

// Iterate through the existing documents and print them
existingDocuments.forEach(doc => {
  print(`Value "${doc.fieldName}" already exists in the collection.`);
});

// Disconnect from MongoDB
conn.close();

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: any csv findall for-loop javascript

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Contributed on Oct 03 2023

Jaimin Patel

0 Answers Avg Quality 2/10

read csv column and check any similar data existing in MongoDB collection or not with findall instead of for loop query

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