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OPERATIONAL DEFECT DATABASE
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Description The $geoNear aggregation stage produces a misleading error message when performing GeoJSON point queries with invalid coordinates. When the coordinates array in the near parameter is undefined or invalid (e.g. []), instead of indicating the coordinate validation issue, it incorrectly suggests there's a problem with having multiple arguments:{} MongoServerError: geo near accepts just one argument when querying for a GeoJSON point. Extra field found: $maxDistance: 1337.0 This error message is confusing because: 1. The maxDistance parameter is valid and supported by $geoNear 2. The actual issue is the invalid coordinates array in the query Expected Behaviour The error message should clearly indicate that the coordinates array is invalid instead of suggesting the removal of a valid parameter (`maxDistance`).
JIRAUSER1282218 commented on Mon, 20 Jan 2025 09:01:26 +0000: Update: tested on versions 4.4.0, 5.0.0, 6.0.0, 7.0.0
import mongoose from 'mongoose'; import {MongoMemoryServer} from 'mongodb-memory-server'; const ExampleSchema = new mongoose.Schema({}); ExampleSchema.index({location: '2dsphere'}); const User = mongoose.model('User', ExampleSchema); async function main() { let mongod; try { mongod = await MongoMemoryServer.create(); // same issue occurs with real connection const mongoUri = mongod.getUri(); await mongoose.connect(mongoUri); // create a document await new User({ location: { type: 'Point', coordinates: [0, 0] } }).save(); await User.aggregate([ { $geoNear: { near: { type: 'Point', coordinates: [], }, distanceField: 'distance', spherical: true, maxDistance: 1337, key: 'location', }, } ]); } catch (error) { console.error(error.stack); } finally { await mongoose.disconnect(); if (mongod) { await mongod.stop(); } } } main(); // will throw the following: // MongoServerError: geo near accepts just one argument when querying for a GeoJSON point. Extra field found: $maxDistance: 1337.0 Copy and paste the code into any project with Typescript and mongoose 8.x, `npm i` and then run the script with Node. Note: The provided snippet uses an in-memory instance for ease of reproduction, but the behaviour is identical with a proper connection.