couchdb_get_doc

This is a utility to put a get a doc from couchdb

It uses superagent.

It is really simple---just avoids some repeated code.

The program is a function generator. You call it with an options object, including (required) the name of the db

The program expects that the url, port, username, password are in the options object. Alternately, you can rely on a configuration file.

The generated function can be used with a callback style, or with a promise style.

The callback style looks like this:

const configuration = {
    "couchdb": {
        "host": "127.0.0.1",
        "port":5984,
        "db":"bitchin_camaros",
        "auth":{"username":"milkman",
                "password":"drove it over from the bahamas"
               }
    }
}

const make_getter = require('couchdb_get_doc')

const get_docs = make_getter(config.couchdb)

... now you can use the getter to get docs ...

get_docs("myid",function(e,doc){
   if (e) { throw "die a horrible death" }
   return do_stuff_with_document(doc)
})

// or using promise style

get_docs("another_id")
.then( doc => {
   return do_stuff_with_document(doc)
})

// or async/await, if you're in an async function
const doc = await get_docs("yadayada")
return await do_stuff_with_document(doc)

See the tests for exact details. The basic utility of this code is that the document getter wraps up the couchdb database stuff just once, and then you can get documents all day long. Because CouchDB isn't a stateful database, you don't have a connection or anything, I'm just saving the details about the host, port, database name, and optionally the username and password.