How to get the conflicted field name of ArangoDB

Question

I have a code like this

let item = { name: 'Roger' }

try {
   return await collection.save(item)
} 
catch (err) {

}

Now the collection I'm saving to has a Unique index on the field called name. Now during the exception handling the err object would look something like this

{
  "isArangoError": true,
  "response": {
    "_readableState": {
      "objectMode": false,
      "highWaterMark": 16384,
      "buffer": {
        "head": null,
        "tail": null,
        "length": 0
      },
      "length": 0,
      "pipes": [

      ],
      "flowing": true,
      "ended": true,
      "endEmitted": true,
      "reading": false,
      "sync": true,
      "needReadable": false,
      "emittedReadable": false,
      "readableListening": false,
      "resumeScheduled": false,
      "paused": false,
      "errorEmitted": false,
      "emitClose": true,
      "autoDestroy": false,
      "destroyed": false,
      "defaultEncoding": "utf8",
      "awaitDrainWriters": null,
      "multiAwaitDrain": false,
      "readingMore": true,
      "decoder": null,
      "encoding": null
    },
    "body": {
      "code": 409,
      "error": true,
      "errorMessage": "unique constraint violated - in index name_is_unique of type persistent over 'name'; conflicting key: 15816187",
      "errorNum": 1210
    },
    "arangojsHostId": 0
  },
  "statusCode": 409,
  "errorNum": 1210,
  "code": 409
}

While the error message is indeed helpful in conveying that name should be unique, wish there is an attribute/field in the error object to grab the conflicted field name.

How to get the field name other than regex parsing from the error message?

How to get the conflicted field name of ArangoDB

0 Answers0