A simple Golang based hack to experiment the uses of IPLD through the DAG operations using the go-ipfs-api package.
I have built a tiny client that receives key-value entries from user and stores it on IPFS DAG, returning an explorable URL to play with.
Here is a sample main.go file for your quick reference:
package main
import (
"bufio"
"encoding/json"
"fmt"
"os"
ipldcrud "github.com/0zAND1z/ipldcrud"
)
func main() {
sh := ipldcrud.InitShell("https://ipfs.infura.io:5001")
keyValueMap := make(map[string]interface{})
scanner := bufio.NewScanner(os.Stdin)
fmt.Println("Enter value for the key field: ")
scanner.Scan()
inputKey := scanner.Text()
fmt.Println("Enter value for value field: ")
scanner.Scan()
inputValue := scanner.Text()
keyValueMap[inputKey] = inputValue
// Converting into JSON object
entryJSON, err := json.Marshal(keyValueMap)
if err != nil {
fmt.Println(err)
}
// Display the marshaled JSON object before sending it to IPFS
jsonStr := string(entryJSON)
fmt.Println("The JSON object of your key-value entry is:")
fmt.Println(jsonStr)
cid := ipldcrud.Set(sh, entryJSON)
fmt.Println("CID: ", cid)
// Fetch the details by reading the DAG for key "inputKey"
fmt.Printf("READ: Value for key \"%s\" is: ", inputKey)
res, err := ipldcrud.Get(sh, cid, inputKey)
if err != nil {
fmt.Println(err)
}
fmt.Println(res)
}
-
Once you run the main.go, a simple console pops up, asking you to enter a key and a value.
-
After entering two string values, it will create a dag entry based on the input data. It will subsequently query the same data and return back the result along with the query results.
For a more detailed understanding of IPLD and how the code works, check out this article on SimpleAsWater.com!