CODEWITHSUNDEEP
node.js
william007
william007

Reputation: 18545

TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object

For

const systemRegex = /^system\./,
  endOfLine = require('os').EOL,
  EJSON = require('mongodb-extjson');

I got error at the line EJSON = require('mongodb-extjson'), details is as follows:

TypeError [ERR_INVALID_ARG_TYPE]: The first argument must be of type string or an instance of Buffer, ArrayBuffer, or Array or an Array-like Object. Received function hidden
    at Function.from (buffer.js:331:9)
    at fnv1a32 (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/fnv1a.js:21:25)
    at fnv1a24 (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/fnv1a.js:39:18)
    at Object.<anonymous> (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/objectid.js:14:20)
    at Module._compile (internal/modules/cjs/loader.js:1138:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
    at Module.load (internal/modules/cjs/loader.js:986:32)
    at Function.Module._load (internal/modules/cjs/loader.js:879:14)
    at Module.require (internal/modules/cjs/loader.js:1026:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (/hdd/all_nlus/nlu_platform_bundle/backend/node_modules/mongodb-extjson/node_modules/bson/lib/bson/bson.js:7:14)
    at Module._compile (internal/modules/cjs/loader.js:1138:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1158:10)
    at Module.load (internal/modules/cjs/loader.js:986:32)
    at Function.Module._load (internal/modules/cjs/loader.js:879:14)
    at Module.require (internal/modules/cjs/loader.js:1026:19) {
  code: 'ERR_INVALID_ARG_TYPE'
}

How to resolve it?

Upvotes: 4

Views: 25696

Answers (1)

user3392439
user3392439

Reputation: 1043

It is because of the Node.js version.

  • Node.js v10.15.1: Works!
  • Node.js v12.8.1: Error loading the module

I am not sure about the cause, but I would guess that it is because Node.js' packaging mechanism has undergone a change. And mongodb-extjson has not been modified to adhere to the new mechanism. As mentioned in their GitHub repository, it is unlikely to be fixed as it is no longer being maintained.

You have the following choices:

  1. Downgrade to v10 of Node.js, OR
  2. Use the recommended bson module instead:
$ npm install bson

const { EJSON } = require('bson');

const data = '{ "someId": { "$oid": "5ec7cb151a1878fbefce4119" } }'
const doc = EJSON.parse(data, { relaxed: false });

console.log(doc.someId._bsontype)
// Should print 'ObjectID'

Note the difference in the EJSON option between the two modules. Whereas in mongodb-extjson the default is strict, in bson the default is relaxed.

Upvotes: 2

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