How can I implement MongoDB autocomplete in Golang using mongo driver?

Question

I am trying to implement a autocomplete search in golang but I keep getting an error with the syntax

contactsCollection := c.DB.Database("XYZ").Collection("contacts")

    result, err := contactsCollection.aggregate([{
            "$search": {
                "autocomplete": {
                    "query": searchQuery,
                    "path": "email",
                    "tokenOrder": "any"
                }
            }
        }
    ])

searchQuery is the input coming in and email is the field upon which I want to do the autocomplete. I am assuming that I would be able to return result.

What am I missing here?

Clark McCauley · Accepted Answer · 2021-07-05 21:39:06Z

1

Check out some tutorials or docs on how to use the MongoDB client in Go. You will need to use the bson package to write queries.

cursor, err := contactsCollection.Aggregate(ctx, bson.A{
    bson.M{"$search": bson.M{"autocomplete": bson.M{
        "query":      searchQuery,
        "path":       "email",
        "tokenOrder": "any",
    }}},
})
if err != nil {
    panic(err)
}
var results []MyDocument
err = cursor.All(ctx, &results)
if err != nil {
    panic(err)
}

edited Jul 5, 2021 at 21:39

answered Jul 5, 2021 at 21:28

Clark McCauley

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