Add web frontend to hello-world example

.rsmrc

@@ -45,5 +45,23 @@ dev:hello-constructors --env=PYTHONPATH=api/
 # Tell `rsm` that this is a Python application.
 dev:hello-constructors --python
 
-# Run this application!
-dev:hello-constructors hello-constructors/backend/src/main.py
+# Run hello-constructors application!
+dev:hello-constructors hello-constructors/backend/src/main.py
+
+# Watch if any generated files are modified.
+dev:hello-world --watch=api/**/*.py
+
+# Watch if any of our source files are modified.
+dev:hello-world --watch=hello-world/backend/src/**/*.py
+
+# PYTHONPATH must be explicitly set to pick up generated code.
+dev:hello-world --env=PYTHONPATH=api/
+
+# Tell `rsm` that this is a Python application.
+dev:hello-world --python
+
+# Save state between chaos restarts.
+dev:hello-world --name=hello-world
+
+# Run hello-world application!
+dev:hello-world hello-world/backend/src/main.py

api/hello_world/v1/greeter.proto

@@ -9,32 +9,31 @@ import "resemble/v1alpha1/options.proto";
 service Greeter {
   option (resemble.v1alpha1.service).state = "GreeterState";
 
-  rpc Create(CreateRequest) returns (CreateResponse) {
-    option (resemble.v1alpha1.method).writer = {
-      constructor: true,
+  rpc Greetings(GreetingsRequest) returns (GreetingsResponse) {
+    option (resemble.v1alpha1.method).reader = {
     };
   }
 
   rpc Greet(GreetRequest) returns (GreetResponse) {
-    option (resemble.v1alpha1.method).reader = {
+    option (resemble.v1alpha1.method).writer = {
     };
   }
 }
 
 message GreeterState {
-  string greeting = 1;
+  repeated string greetings = 2;
 }
 
-message CreateRequest {
-  string greeting = 1;  // E.g. "Hello".
-}
+message GreetingsRequest {}
 
-message CreateResponse {}
+message GreetingsResponse {
+  repeated string greetings = 1;
+}
 
 message GreetRequest {
-  string name = 1;  // E.g. "World".
+  string greeting = 1;  // E.g. "Hello, World".
 }
 
 message GreetResponse {
-  string message = 1;  // E.g. "Hello, World!".
+  string greeting = 1;
 }

hello-constructors/backend/src/requirements.txt

@@ -1,2 +1,2 @@
-reboot-resemble>=0.0.5
+reboot-resemble>=0.0.6
 pytest>=7.4.2

hello-world/backend/src/greeter_servicer.py

@@ -1,9 +1,9 @@
 import asyncio
 from hello_world.v1.greeter_rsm import (
-    CreateRequest,
-    CreateResponse,
     Greeter,
     GreeterState,
+    GreetingsRequest,
+    GreetingsResponse,
     GreetRequest,
     GreetResponse,
 )
@@ -12,20 +12,20 @@
 
 class GreeterServicer(Greeter.Interface):
 
-    async def Create(
-        self,
-        context: WriterContext,
-        request: CreateRequest,
-    ) -> Greeter.CreateEffects:
-        return Greeter.CreateEffects(
-            state=GreeterState(greeting=request.greeting),
-            response=CreateResponse()
-        )
+    async def Greetings(
+        self, context: ReaderContext, state: GreeterState,
+        request: GreetingsRequest
+    ) -> GreetingsResponse:
+        return GreetingsResponse(greetings=state.greetings)
 
     async def Greet(
         self,
-        context: ReaderContext,
+        context: WriterContext,
         state: GreeterState,
         request: GreetRequest,
-    ) -> GreetResponse:
-        return GreetResponse(message=f"{state.greeting}, {request.name}")
+    ) -> Greeter.GreetEffects:
+        greeting = request.greeting
+        state.greetings.extend([greeting])
+        return Greeter.GreetEffects(
+            state=state, response=GreetResponse(greeting=greeting)
+        )

hello-world/backend/src/main.py

@@ -1,24 +1,14 @@
 import asyncio
 import logging
-from hello_world.v1.greeter_rsm import Greeter, GreetResponse
 from greeter_servicer import GreeterServicer
 from resemble.aio.applications import Application
 from resemble.aio.workflows import Workflow
 
 logging.basicConfig(level=logging.INFO)
 
-EXAMPLE_GREETER_ID = 'my-cool-greeter'
-
 
 async def initialize(workflow: Workflow):
-    greeter = Greeter(EXAMPLE_GREETER_ID)
-
-    # Create the state machine.
-    await greeter.Create(workflow, greeting="Hello")
-
-    # Demonstrate that we can use the actor.
-    response: GreetResponse = await greeter.Greet(workflow, name="World")
-    logging.info(f"Received a greeting: '{response.message}'")
+    logging.info(f"Greeter is ready... Try recording a greeting!")
 
 
 async def main():

hello-world/backend/src/requirements.txt

@@ -1,2 +1,2 @@
-reboot-resemble>=0.0.5
+reboot-resemble>=0.0.6
 pytest>=7.4.2

hello-world/web/.gitignore

@@ -0,0 +1,23 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*

hello-world/web/config-overrides.js

@@ -0,0 +1,16 @@
+const { removeModuleScopePlugin, override, babelInclude } = require("customize-cra");
+const path = require("path");
+
+module.exports = function (config, env) {
+
+    return Object.assign(
+      config,
+      override(
+        removeModuleScopePlugin(),
+        babelInclude([
+          path.resolve('src'),
+          path.resolve('../../api/hello_world/v1'),
+        ])
+      )(config, env)
+    )
+  }