How do I globally handle all type of Exception in NESTJS

Question

Here is the error message when my code throws an error:

error: Error: Duplicate entry 'Story of Lawyer' for key 'book.book-title-unique'
    at Packet.asError (E:\Work\nest_best_practice\node_modules\mysql2\lib\packets\packet.js:728:17)
    at Query.execute (E:\Work\nest_best_practice\node_modules\mysql2\lib\commands\command.js:29:26)
    at PoolConnection.handlePacket (E:\Work\nest_best_practice\node_modules\mysql2\lib\connection.js:456:32)
    at PacketParser.onPacket (E:\Work\nest_best_practice\node_modules\mysql2\lib\connection.js:85:12)
    at PacketParser.executeStart (E:\Work\nest_best_practice\node_modules\mysql2\lib\packet_parser.js:75:16)
    at Socket.<anonymous> (E:\Work\nest_best_practice\node_modules\mysql2\lib\connection.js:92:25)
    at Socket.emit (node:events:527:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at Socket.Readable.push (node:internal/streams/readable:228:10) {
  code: 'ER_DUP_ENTRY',
  errno: 1062,
  sqlState: '23000',
  sqlMessage: "Duplicate entry 'Story of Lawyer' for key 'book.book-title-unique'",
  sql: "INSERT INTO `book`(`id`, `title`, `desc`, `createdAt`, `updatedAt`, `image`, `pdf`) VALUES (DEFAULT, 'Story of Lawyer', 'No Description', DEFAULT, DEFAULT, 'software-developer-copy-6d00.jpg', 'NEST CLI-3339.pdf')"
}

How I can handle these kind of error globally?

Answer 1

Have you tried using an exception filter

https://docs.nestjs.com/exception-filters