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started db-rewrite. using neo4j and a restful go api to handle DB queries/statements.

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This commit is contained in:
jashton
2025-04-25 23:20:29 -06:00
parent 275e6cb153
commit 693d11c506
13 changed files with 480 additions and 6 deletions
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backend/go.mod
+8
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@@ -0,0 +1,8 @@
module the.hub/m
go 1.24.2
require (
github.com/gorilla/mux v1.8.1 // indirect
github.com/neo4j/neo4j-go-driver/v5 v5.28.0 // indirect
)
backend/go.sum
+4
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@@ -0,0 +1,4 @@
github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
github.com/neo4j/neo4j-go-driver/v5 v5.28.0 h1:chDT68PHNa8JZRmjSkGzAbk1weLWo4rMtDvccvpobg0=
github.com/neo4j/neo4j-go-driver/v5 v5.28.0/go.mod h1:Vff8OwT7QpLm7L2yYr85XNWe9Rbqlbeb9asNXJTHO4k=
backend/posts.go
+47
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@@ -0,0 +1,47 @@
package main
import (
"context"
// "encoding/json"
// "fmt"
//"io"
// "log"
"net/http"
// "os"
// "os/signal"
//"strings"
// "sync"
// "time"
// "github.com/gorilla/mux"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)
func create_new_post(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_all_posts(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_post(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func update_post(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func delete_post(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
backend/router.go
+172
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@@ -0,0 +1,172 @@
package main
import (
"context"
// "encoding/json"
"fmt"
//"io"
"log"
"net/http"
"os"
"os/signal"
//"strings"
"sync"
"time"
"github.com/gorilla/mux"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)
func send_error(w http.ResponseWriter, json []byte) {
w.WriteHeader(http.StatusBadRequest)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(json))
}
func send_response(w http.ResponseWriter, json []byte) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(json))
}
func serve() {
// TODO: Authenticate user credentials to verify they are allowed to even access
var wg sync.WaitGroup
driver_ctx := context.Background()
driver, err := neo4j.NewDriverWithContext("bolt://localhost:7687", neo4j.BasicAuth("neo4j", "jzLbsy2C23WHzQ-", ""))
if err != nil {
panic(err)
}
defer driver.Close(driver_ctx)
err = driver.VerifyConnectivity(driver_ctx)
if err != nil {
panic(err)
}
fmt.Println("neo4j connection established.")
rsrc_endpoints := []string{
"/users",
"/users",
"/users/{user_id}",
"/users/{user_id}",
"/users/{user_id}",
"/users/{user_id}",
"/users/{user_id}/posts",
"/users/{user_id}/spaces",
"/spaces",
"/spaces",
"/spaces/{space_id}",
"/spaces/{space_id}",
"/spaces/{space_id}",
"/spaces/{space_id}",
"/spaces/{space_id}/users",
"/spaces/{space_id}/posts",
"/posts",
"/posts",
"/posts/{post_id}",
"/posts/{post_id}",
"/posts/{post_id}",
}
methods := []string{
http.MethodPost,
http.MethodGet,
http.MethodGet,
http.MethodPost,
http.MethodPatch,
http.MethodDelete,
http.MethodGet,
http.MethodGet,
http.MethodPost,
http.MethodGet,
http.MethodGet,
http.MethodPost,
http.MethodPatch,
http.MethodDelete,
http.MethodGet,
http.MethodGet,
http.MethodPost,
http.MethodGet,
http.MethodGet,
http.MethodPatch,
http.MethodDelete,
}
functions := []func(http.ResponseWriter, *http.Request){
create_new_user(driver, driver_ctx),
retrieve_all_users(driver, driver_ctx),
retrieve_user(driver, driver_ctx),
auth_user(driver, driver_ctx),
update_user(driver, driver_ctx),
delete_user(driver, driver_ctx),
retrieve_users_posts(driver, driver_ctx),
retrieve_users_spaces(driver, driver_ctx),
create_new_space(driver, driver_ctx),
retrieve_all_spaces(driver, driver_ctx),
retrieve_space(driver, driver_ctx),
auth_user_in_space(driver, driver_ctx),
update_space(driver, driver_ctx),
delete_space(driver, driver_ctx),
retrieve_spaces_users(driver, driver_ctx),
retrieve_spaces_posts(driver, driver_ctx),
create_new_post(driver, driver_ctx),
retrieve_all_posts(driver, driver_ctx),
retrieve_post(driver, driver_ctx),
update_post(driver, driver_ctx),
delete_post(driver, driver_ctx),
}
r := mux.NewRouter()
ServeApi(r, "api", rsrc_endpoints, methods, functions, "7477")
log.Println("API routes configured with prefix", "/api")
addr := "0.0.0.0:7476"
srv := &http.Server{
Addr: addr,
WriteTimeout: time.Second * 15,
ReadTimeout: time.Second * 15,
IdleTimeout: time.Second * 60,
Handler: r,
}
// Run our server in a goroutine so that it doesn't block.
wg.Add(1)
go func() {
defer wg.Done()
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Println(err)
}
}()
log.Println("Router is running on port 7476")
c := make(chan os.Signal, 1)
// We'll accept graceful shutdowns when quit via SIGINT (Ctrl+Shift+C)
signal.Notify(c, os.Interrupt)
// Block until we receive our signal.
<-c
// Create a deadline to wait for.
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(30))
defer cancel()
// Doesn't block if no connections, but will otherwise wait
// until the timeout deadline.
srv.Shutdown(ctx)
// Optionally, you could run srv.Shutdown in a goroutine and block on
// <-ctx.Done() if your application should wait for other services
// to finalize based on context cancellation.
log.Println("shutting down")
wg.Wait()
os.Exit(0)
}
func main() {
serve()
}
backend/serveAPI.go
+43
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@@ -0,0 +1,43 @@
package main
import (
"github.com/gorilla/mux"
"log"
"net/http"
"time"
)
// Serve an API using mux.Router().Host({domain}).Subrouter().
// Provide the router, domain, an array of endpoints and functions, and
// the port you would like the API accessible to.
func ServeApi(
router *mux.Router,
prefix string,
endpoints []string,
methods []string,
functions []func(http.ResponseWriter, *http.Request),
port string,
) {
apiR := router.PathPrefix(prefix).Subrouter()
for i := range endpoints {
apiR.HandleFunc(endpoints[i], functions[i]).Methods(methods[i])
}
apiSrv := &http.Server{
Addr: "0.0.0.0:" + port,
WriteTimeout: time.Second * 15,
ReadTimeout: time.Second * 15,
IdleTimeout: time.Second * 60,
Handler: apiR,
}
go func() {
if err := apiSrv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Println(err)
}
}()
log.Println("API server is running on port " + port)
}
backend/spaces.go
+65
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@@ -0,0 +1,65 @@
package main
import (
"context"
// "encoding/json"
// "fmt"
//"io"
// "log"
"net/http"
// "os"
// "os/signal"
//"strings"
// "sync"
// "time"
// "github.com/gorilla/mux"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)
func create_new_space(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_all_spaces(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_space(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func auth_user_in_space(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func update_space(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func delete_space(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_spaces_posts(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_spaces_users(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
backend/users.go
+129
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@@ -0,0 +1,129 @@
package main
import (
"context"
"encoding/json"
// "fmt"
"strconv"
//"io"
// "log"
"net/http"
// "os"
// "os/signal"
// "reflect"
"strings"
// "sync"
// "time"
"github.com/gorilla/mux"
"github.com/neo4j/neo4j-go-driver/v5/neo4j"
)
func create_new_user(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_all_users(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_user(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
user_id, _ := strconv.Atoi(mux.Vars(r)["user_id"])
result, _ := neo4j.ExecuteQuery(driver_ctx, driver,
"MATCH (u:User) WHERE id(u) = $user_id RETURN u.username AS username, u.email AS email, u.profile_picture AS profile_picture",
map[string]any{
"user_id": user_id,
}, neo4j.EagerResultTransformer,
neo4j.ExecuteQueryWithDatabase("neo4j"))
record := result.Records[0]
vals := record.AsMap()
user := struct {
Username string `json:"username"`
Email string `json:"email"`
ProfilePicture string `json:"profile_picture"`
}{
Username: vals["username"].(string),
Email: vals["email"].(string),
ProfilePicture: vals["profile_picture"].(string),
}
json, err := json.Marshal(user)
if err != nil {
return
}
send_response(w, json)
}
}
func auth_user(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
username := r.FormValue("username")
password_hash := r.FormValue("password_hash")
result, _ := neo4j.ExecuteQuery(driver_ctx, driver,
"MATCH (u:User) WHERE u.username = $username RETURN u.password_hash AS password_hash, elementId(u) AS id",
map[string]any{
"username": username,
}, neo4j.EagerResultTransformer,
neo4j.ExecuteQueryWithDatabase("neo4j"))
if len(result.Records) > 0 {
record := result.Records[0]
vals := record.AsMap()
if vals["password_hash"] != password_hash {
return
}
id := strings.Split(vals["id"].(string), ":")[2]
ret := struct {
Auth bool `json:"auth"`
Id string `json:"id"`
}{
Auth: true,
Id: id,
}
json, err := json.Marshal(ret)
if err != nil {
return
}
send_response(w, json)
} else {
return
}
}
}
func update_user(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func delete_user(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_users_posts(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
func retrieve_users_spaces(driver neo4j.DriverWithContext, driver_ctx context.Context) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
return
}
}
composer.json
+8 -2
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@@ -5,12 +5,18 @@
"require": {
"erusev/parsedown": "^1.7",
"vlucas/phpdotenv": "^5.6",
"wildbit/postmark-php": "^6.0"
"wildbit/postmark-php": "^6.0",
"laudis/neo4j-php-client": "^3.2"
},
"authors": [
{
"name": "Josh Ashton",
"email": "me@joshashton.dev"
}
]
],
"config": {
"allow-plugins": {
"php-http/discovery": true
}
}
}
functions/account_functions.php
+1 -1
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@@ -1,5 +1,5 @@
<?php
require_once 'db_functions.php';
require_once 'db.php';
require_once 'article_functions.php';
use Postmark\PostmarkClient;
functions/admin_functions.php
+1 -1
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@@ -1,5 +1,5 @@
<?php
require_once 'db_functions.php';
require_once 'db.php';
require_once 'functions.php';
require_once 'account_functions.php';
require_once 'article_functions.php';
functions/article_functions.php
+1 -1
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@@ -1,5 +1,5 @@
<?php
require_once 'db_functions.php';
require_once 'db.php';
function article_ids_by_newest()
{
functions/db_functions.php → functions/db.php
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functions/init.php
+1 -1
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@@ -4,7 +4,7 @@ header("Content-Security-Policy: default-src 'self'; font-src 'self' https://www
// Initialize Composer.
require_once 'vendor/autoload.php';
require_once 'db_functions.php';
require_once 'db.php';
require_once 'account_functions.php';
// Load environment variables.