planning

node_modules/redux-thunk/lib/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+/** A function that accepts a potential "extra argument" value to be injected later,
+ * and returns an instance of the thunk middleware that uses that value
+ */
+function createThunkMiddleware(extraArgument) {
+  // Standard Redux middleware definition pattern:
+  // See: https://redux.js.org/tutorials/fundamentals/part-4-store#writing-custom-middleware
+  var middleware = function middleware(_ref) {
+    var dispatch = _ref.dispatch,
+        getState = _ref.getState;
+    return function (next) {
+      return function (action) {
+        // The thunk middleware looks for any functions that were passed to `store.dispatch`.
+        // If this "action" is really a function, call it and return the result.
+        if (typeof action === 'function') {
+          // Inject the store's `dispatch` and `getState` methods, as well as any "extra arg"
+          return action(dispatch, getState, extraArgument);
+        } // Otherwise, pass the action down the middleware chain as usual
+
+
+        return next(action);
+      };
+    };
+  };
+
+  return middleware;
+}
+
+var thunk = createThunkMiddleware(); // Attach the factory function so users can create a customized version
+// with whatever "extra arg" they want to inject into their thunks
+
+thunk.withExtraArgument = createThunkMiddleware;
+var _default = thunk;
+exports.default = _default;