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# db-container
This Repo contains the main "database" running an http-api exposing the quadtree.
## API-Endpoints
## Files
Simple description of each individual function
### export.go
```
func export(treeindex int64) error {
// exports the tree with the given tree index by writing it's json
// to /exports/{treeindex}.json
}
func exportHandler(w http.ResponseWriter, r *http.Request) {
// handles request to /export/{treeindex} and uses the export function
// to export the selected tree
}
```
### update.go
```
func updateCenterOfMassHandler(w http.ResponseWriter, r *http.Request) {
// updates the center of mass of every node in the tree width the given index
}
func updateTotalMassHandler(w http.ResponseWriter, r *http.Request) {
// updates the total mass of every node in the tree with the given index
}
```
### import.go
```
func fastInsertHandler(w http.ResponseWriter, r *http.Request) {
// creates a new tree by reading from /db/{filename}.json and inserting the tree
// from that file into the treeArray
// The function returns the index in which it inserted the tree
}
```
### manage.go
```
func newTreeHandler(w http.ResponseWriter, r *http.Request) {
// creates a new empty tree with the given width
}
func newTree(width float64) []byte {
// creates a new tree and returns it json formatted as a bytestring
}
func printAllHandler(w http.ResponseWriter, r *http.Request) {
// prints all the trees in the treeArray in json format
}
func insertStarHandler(w http.ResponseWriter, r *http.Request) {
// inserts the given star into the tree
}
func starlistHandler(w http.ResponseWriter, r *http.Request) {
// lists all the stars in the given tree
}
func dumptreeHandler(w http.ResponseWriter, r *http.Request) {
// returns the tree with the given index in json format
}
```
### metrics.go
```
func metricHandler(w http.ResponseWriter, r *http.Request) {
// locally published the databases metrics
}
func pushMetricsNumOfStars(host string, treeindex int64) {
// pushes the metrics of the tree with the given index to the metric-bundler
// using the given host and
}
```
### update.go
```
func updateCenterOfMassHandler(w http.ResponseWriter, r *http.Request) {
// updates the center of mass of every node in the tree with the given index
}
func updateTotalMassHandler(w http.ResponseWriter, r *http.Request) {
// updates the total mass in the tree with the given index
}
```
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