Go Systems Programming

Creating a Go application that displays MongoDB data

The name of the utility will be showMongo.go and it will be presented in three parts. The utility will connect to a MongoDB instance, read a collection, and display the documents of the collection as a web page. Note that showMongo.go is based on the Go code of template.go.

The first part of the web application is the following:

package main 
 
import ( 
   "fmt" 
   "html/template" 
   "labix.org/v2/mgo" 
   "net/http" 
   "os" 
   "time" 
) 
 
var DatabaseName string 
var collectionName string 
 
type Document struct { 
   P1 int 
   P2 int 
   P3 int 
   P4 int 
   P5 int 
}

You should know in advance the structure of the MongoDB documents that you will retrieve because the field names are hard coded in the struct type and need to match. ...