feat: Add GET /connectors route to list all installed connectors (#47)

internal/app/api/connector.go

@@ -85,6 +85,23 @@ func readTask[Config payments.ConnectorConfigObject,
 	}
 }
 
+func findAll[Config payments.ConnectorConfigObject,
+	Descriptor payments.TaskDescriptor](connectorManager *integration.ConnectorManager[Config, Descriptor],
+) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		res, err := connectorManager.FindAll(context.Background())
+		if err != nil {
+			handleError(w, r, err)
+
+			return
+		}
+
+		if err = json.NewEncoder(w).Encode(res); err != nil {
+			panic(err)
+		}
+	}
+}
+
 func uninstall[Config payments.ConnectorConfigObject,
 	Descriptor payments.TaskDescriptor](connectorManager *integration.ConnectorManager[Config, Descriptor],
 ) http.HandlerFunc {

internal/app/api/connectormodule.go

@@ -94,6 +94,8 @@ func connectorRouter[Config payments.ConnectorConfigObject, Descriptor payments.
 ) *mux.Router {
 	r := mux.NewRouter()
 
+	r.Path("/").Methods(http.MethodGet).Handler(findAll(manager))
+
 	r.Path("/" + name).Methods(http.MethodPost).Handler(install(manager))
 
 	r.Path("/" + name + "/reset").Methods(http.MethodPost).Handler(reset(manager))

internal/pkg/integration/manager.go

@@ -197,6 +197,10 @@ func (l *ConnectorManager[ConnectorConfig, TaskDescriptor]) IsEnabled(ctx contex
 	return l.store.IsEnabled(ctx, l.loader.Name())
 }
 
+func (l *ConnectorManager[ConnectorConfig, TaskDescriptor]) FindAll(ctx context.Context) ([]payments.ConnectorBaseInfo, error) {
+	return l.store.FindAll(ctx)
+}
+
 func (l *ConnectorManager[ConnectorConfig, TaskDescriptor]) IsInstalled(ctx context.Context) (bool, error) {
 	return l.store.IsInstalled(ctx, l.loader.Name())
 }

internal/pkg/integration/store.go

@@ -13,6 +13,7 @@ import (
 )
 
 type ConnectorStore interface {
+	FindAll(ctx context.Context) ([]payments.ConnectorBaseInfo, error)
 	IsInstalled(ctx context.Context, name string) (bool, error)
 	Install(ctx context.Context, name string, config any) error
 	Uninstall(ctx context.Context, name string) error
@@ -37,6 +38,10 @@ func (i *InMemoryConnectorStore) Uninstall(ctx context.Context, name string) err
 	return nil
 }
 
+func (i *InMemoryConnectorStore) FindAll(_ context.Context) ([]payments.ConnectorBaseInfo, error) {
+	return []payments.ConnectorBaseInfo{}, nil
+}
+
 func (i *InMemoryConnectorStore) IsInstalled(ctx context.Context, name string) (bool, error) {
 	return i.installed[name], nil
 }
@@ -132,6 +137,20 @@ func (m *MongodbConnectorStore) Uninstall(ctx context.Context, name string) erro
 	})
 }
 
+func (m *MongodbConnectorStore) FindAll(ctx context.Context) ([]payments.ConnectorBaseInfo, error) {
+	cursor, err := m.db.Collection(payments.ConnectorsCollection).Find(ctx, map[string]any{})
+	if err != nil {
+		return []payments.ConnectorBaseInfo{}, errors.Wrap(err, "find all connectors")
+	}
+
+	var res []payments.ConnectorBaseInfo
+	if err = cursor.All(context.TODO(), &res); err != nil {
+		return []payments.ConnectorBaseInfo{}, errors.Wrap(err, "decoding all connectors")
+	}
+
+	return res, err
+}
+
 func (m *MongodbConnectorStore) IsInstalled(ctx context.Context, name string) (bool, error) {
 	ret := m.db.Collection(payments.ConnectorsCollection).FindOne(ctx, map[string]any{
 		"provider": name,

internal/pkg/payments/connector.go

@@ -1,7 +1,11 @@
 package payments
 
-type Connector[T ConnectorConfigObject] struct {
+type ConnectorBaseInfo struct {
 	Provider string `json:"provider" bson:"provider"`
 	Disabled bool   `json:"disabled" bson:"disabled"`
-	Config   T      `json:"config" bson:"config"`
+}
+
+type Connector[T ConnectorConfigObject] struct {
+	ConnectorBaseInfo
+	Config T `json:"config" bson:"config"`
 }

swagger.yml

@@ -58,6 +58,20 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/Payment'
+
+  '/connectors':
+    get:
+      summary: Get all installed connectors
+      operationId: getAllConnectors
+      description: Get all installed connectors
+      responses:
+        200:
+          description: List of installed connectors
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ListConnectorsResponse'
+
   '/connectors/{connector}':
     post:
       summary: Install connector
@@ -348,3 +362,23 @@ components:
           format: date-time
         raw:
           nullable: true
+
+    ListConnectorsResponse:
+      type: object
+      required:
+        - data
+      properties:
+        data:
+          type: array
+          items:
+            $ref: '#/components/schemas/ConnectorBaseInfo'
+
+    ConnectorBaseInfo:
+      type: object
+      properties:
+        provider:
+          type: string
+          example: stripe
+        disabled:
+          type: boolean
+          example: false