diff --git a/src/store/index.tsx b/src/store/index.tsx
new file mode 100644
index 0000000..3515acb
--- /dev/null
+++ b/src/store/index.tsx
@@ -0,0 +1,22 @@
+import { createStore, combineReducers, applyMiddleware } from "redux";
+import { composeWithDevTools } from "redux-devtools-extension";
+
+import { sourceFilesReducer } from "./sourceFiles/reducer";
+
+const rootReducer = combineReducers({
+  sourceFiles: sourceFilesReducer
+});
+
+export type AppState = ReturnType<typeof rootReducer>;
+
+export default function configureStore() {
+  const middlewares = [];
+  const middleWareEnhancer = applyMiddleware(...middlewares);
+
+  const store = createStore(
+    rootReducer,
+    composeWithDevTools(middleWareEnhancer)
+  );
+
+  return store;
+}
diff --git a/src/store/sourceFiles/actions.ts b/src/store/sourceFiles/actions.ts
new file mode 100644
index 0000000..6f1d41e
--- /dev/null
+++ b/src/store/sourceFiles/actions.ts
@@ -0,0 +1,16 @@
+import * as ts from "typescript";
+import { INIT_SOURCEFILE, UPDATE_SOURCEFILE } from "./types";
+
+export function initSourceFile(sourceFile: ts.SourceFile) {
+  return {
+    type: INIT_SOURCEFILE,
+    payload: { sourceFile }
+  };
+}
+
+export function updateSourceFile(sourceFile: ts.SourceFile) {
+  return {
+    type: UPDATE_SOURCEFILE,
+    payload: { sourceFile }
+  };
+}
diff --git a/src/store/sourceFiles/reducer.ts b/src/store/sourceFiles/reducer.ts
new file mode 100644
index 0000000..c7a0589
--- /dev/null
+++ b/src/store/sourceFiles/reducer.ts
@@ -0,0 +1,31 @@
+import {
+  SourceFilesState,
+  INIT_SOURCEFILE,
+  UPDATE_SOURCEFILE,
+  SourceFilesActionTypes
+} from "./types";
+
+const initialState: SourceFilesState = {
+  inititalSourceFile: undefined,
+  currentSourceFile: undefined
+};
+
+export function sourceFilesReducer(
+  state = initialState,
+  action: SourceFilesActionTypes
+): SourceFilesState {
+  switch (action.type) {
+    case INIT_SOURCEFILE:
+      return {
+        ...state,
+        inititalSourceFile: action.payload.sourceFile
+      };
+    case UPDATE_SOURCEFILE:
+      return {
+        ...state,
+        currentSourceFile: action.payload.sourceFile
+      };
+    default:
+      return state;
+  }
+}
diff --git a/src/store/sourceFiles/types.ts b/src/store/sourceFiles/types.ts
new file mode 100644
index 0000000..899528e
--- /dev/null
+++ b/src/store/sourceFiles/types.ts
@@ -0,0 +1,25 @@
+import * as ts from "typescript";
+
+// Describing the shape of the sourceFile's slice of state
+export interface SourceFilesState {
+  inititalSourceFile?: ts.SourceFile;
+  currentSourceFile?: ts.SourceFile;
+}
+
+// Describing the different ACTION NAMES available
+export const INIT_SOURCEFILE = "INIT_SOURCEFILE";
+export const UPDATE_SOURCEFILE = "UPDATE_SOURCEFILE";
+
+interface InitSourceFileAction {
+  type: typeof INIT_SOURCEFILE;
+  payload: { sourceFile: ts.SourceFile };
+}
+
+interface UpdateSourceFileAction {
+  type: typeof UPDATE_SOURCEFILE;
+  payload: { sourceFile: ts.SourceFile };
+}
+
+export type SourceFilesActionTypes =
+  | InitSourceFileAction
+  | UpdateSourceFileAction;