what to handle

build mongodb indexes by config file

how to use

npm install build-db-index

async function build() {
    await setIndex({uri:"mongodb://127.0.0.1:27017",db:"test"},
    {
        offer:[
            {key:{offer_id:1,time:1}},
            {key:{ttl:1},options:{expireAfterSeconds:2600}}
        ],
        user:[{key:{userid:1},options:{unique:true}}]
    })
}

build().catch(console.error);

excuted build(),the db 'test' will build the indexes of collection offer and user,

and drop all indexes( of all collections defined in config) that not defined in config.

If index exists(key and options are both same ),it will not take time to rebuild it.