16_go-mongo

README

setup

go get -u gopkg.in/mgo.v2

https://godoc.org/gopkg.in/mgo.v2

http://labix.org/mgo

setup database

restart mongo

close any open mongo connections, then restart with these commands:

mongo

in a new tab

mongod

create db

use bookstore

create collection books & insert books

db.books.insert([{"isbn":"978-1505255607","title":"The Time Machine","author":"H. G. Wells","price":5.99},{"isbn":"978-1503261960","title":"Wind Sand \u0026 Stars","author":"Antoine","price":14.99},{"isbn":"978-1503261961","title":"West With The Night","author":"Beryl Markham","price":14.99}])

test

db.books.find()

user setup

db.createUser(
  {
    user: "bond",
    pwd: "moneypenny007",
    roles: [ { role: "readWrite", db: "bookstore" } ]
  }
)

exit mongo & then start again with auth enabled

mongod --auth

mongo -u "bond" -p "moneypenny007" --authenticationDatabase "bookstore"

test

use bookstore

show collections

db.books.find()

db.books.insert({"isbn" : "978-1503261777", "title" : "Never Say Never", "author" : "Ian Fleming", "price" : 24.99 })

db.books.find()

GO & MONGO

db access

mongodb://myuser:mypass@localhost:27017/dbToAccess

If the port number is not provided for a server, it defaults to 27017.

for our example:

mongodb://bond:moneypenny007@localhost:27017/bookstore

https://godoc.org/gopkg.in/mgo.v2#Dial

db.go

Update to use mongo. You will use the mgo.Dial to create a session. You can still assign this to the variable DB.

models.go

Update to use mongo.

run the application and make a request

curl -i localhost:8080/books

curl -i -X POST -d "isbn=978-1470184841&title=Metamorphosis&author=Franz Kafka&price=5.90" localhost:8080/books/create/process