Merge branch '134-query-service-httprequest' into 'develop'

Co-authored-by: Jacob Hemming. Implementatie query request naar db

See merge request datastrophe/microservices-backbone/query-service!2

request.go

+package main
+
+import (
+	"context"
+	"fmt"
+
+	"encoding/json"
+	"io/ioutil"
+
+	driver "github.com/arangodb/go-driver"
+	"github.com/arangodb/go-driver/http"
+)
+
+// Document with Empty struct to retrieve all data from the DB Document
+type Document map[string]interface{}
+
+// GeneralFormat is a generalformat to send data the frontend
+type GeneralFormat map[string]interface{}
+
+//attr interface{}
+
+//map[1 , 2 , 3 map [ .. ]]
+
+func main() {
+	conn, err := http.NewConnection(http.ConnectionConfig{
+		Endpoints: []string{"http://localhost:8529"},
+	})
+	if err != nil {
+		fmt.Printf("auwa das tut weh") // Handle error
+	}
+	c, err := driver.NewClient(driver.ClientConfig{
+		Connection:     conn,
+		Authentication: driver.BasicAuthentication("root", "openSesame"),
+	})
+	if err != nil {
+		fmt.Printf("doet het niet") // Handle error
+	}
+
+	ctx := context.Background()
+	db, err := c.Database(ctx, "_system")
+	if err != nil {
+		// handle error
+	}
+
+	query := "FOR d IN Characters LIMIT 10 RETURN d"
+	cursor, err := db.Query(ctx, query, nil)
+
+	if err != nil {
+		fmt.Printf("shalom") // handle error
+	}
+	defer cursor.Close()
+	for {
+		var doc Document
+		_, err := cursor.ReadDocument(ctx, &doc)
+		if driver.IsNoMoreDocuments(err) {
+			break
+		} else if err != nil {
+			// handle other errors
+		}
+		//fmt.Printf("%T\n", doc)
+		formatToJSON(doc)
+	}
+
+}
+
+func formatToJSON(doc Document) {
+	//b, err := json.Marshal(doc)
+	//if err != nil {
+	//handle error
+	//}
+
+	data := parseData(doc)
+	fmt.Println(data)
+	file, _ := json.MarshalIndent(data, "", " ")
+
+	_ = ioutil.WriteFile("test.json", file, 0644)
+}
+
+func parseData(doc Document) Document {
+	data := make(Document)
+	data["_id"] = doc["_id"]
+	delete(doc, "_id")
+	data["_key"] = doc["_key"]
+	delete(doc, "_key")
+	data["_rev"] = doc["_rev"]
+	delete(doc, "_rev")
+	data["attributes"] = doc
+
+	//delete(doc, "_key")
+	//data.rev = fmt.Sprintf("%v", doc["_rev"])
+
+	// delete(doc, "_rev")
+	// data.attr = doc
+	return data
+}

test.json

+{
+ "_id": "Characters/JonSnow",
+ "_key": "JonSnow",
+ "_rev": "_c-44iYG--C",
+ "attributes": {
+  "age": 16,
+  "alive": true,
+  "name": "Jon",
+  "surname": "Snow",
+  "traits": [
+   "A",
+   "B",
+   "C",
+   "F"
+  ]
+ }
+}