Merge branch 'callback-logger' into 'main'

Callback logger

See merge request ralf.winkelmann/ssi-infrastructure-playground!1

README.md

@@ -48,4 +48,11 @@ npm run swagger-autogen
 ## Jolocom with arm64 Macbook
 Jolocom currently doesn't support the architecture arm64 of the new M1 processor. To use Jolocom with arm64, use the following guide:
 
-[How to setup Node.js on Apple M1 Machine](https://www.jurnalanas.com/node-js-mac-m1/)
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+[How to setup Node.js on Apple M1 Machine](https://www.jurnalanas.com/node-js-mac-m1/)
+
+## Callback Logger Deployment
+Run the following command:
+
+```terminal
+gcloud builds submit --region=europe-west1 --project=dotted-byway-356119
+```
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callback-logger/Dockerfile

+FROM amd64/node:14
+
+WORKDIR /usr/src/app
+
+ENV PORT 3501
+
+# Copy and install dependencies
+COPY package*.json ./
+RUN npm install
+
+# Copy app data
+COPY app ./app
+COPY swagger.js ./
+COPY swagger-output.json ./
+
+EXPOSE 3501
+CMD [ "npm", "run", "start-prod"]
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callback-logger/app/app.js

+import express from 'express';
+import cors from 'cors';
+import bodyParser from 'body-parser';
+import { readFileSync } from 'fs';
+import swaggerUi from 'swagger-ui-express';
+
+const swaggerFile = JSON.parse(readFileSync('./swagger-output.json'));
+
+const app = express();
+
+// middleware
+app.use(bodyParser.json());
+app.use(cors());
+
+// endpoints
+app.post('/callback/:requestId', async (req, res) => {
+    //  #swagger.parameters['requestId'] = { description: 'Generated id for request' }
+    /*  #swagger.parameters['token'] = {
+            in: 'body',
+            description: 'Token sent back by Jolocom Wallet'
+    } */
+
+    // log callback data
+    console.log('\n----- NEW CALLBACK TO LOG -----\n');
+    console.log('Request Id: ', req.params.requestId);
+    console.log('Request Headers: ', JSON.stringify(req.headers));
+    console.log('Request Body: ', req.body);
+    console.log('\n----- LOGGING FINISHED -----\n\n');
+
+    return res.sendStatus(200);
+});
+
+// API Doc
+app.use('/doc', swaggerUi.serve, swaggerUi.setup(swaggerFile))
+
+const backendPort = 3501;
+app.listen(backendPort, () => {
+    console.log(`Backend is running: http://localhost:${backendPort}/doc`)
+});
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callback-logger/cloudbuild.yaml

+steps:
+# Build the container image
+- name: 'gcr.io/cloud-builders/docker'
+  args: ['build', '-t', 'gcr.io/dotted-byway-356119/callback-logger-image', '.']
+# Push the container image to Container Registry
+- name: 'gcr.io/cloud-builders/docker'
+  args: ['push', 'gcr.io/dotted-byway-356119/callback-logger-image']
+# Deploy container image to Cloud Run
+- name: 'gcr.io/google.com/cloudsdktool/cloud-sdk'
+  entrypoint: gcloud
+  args: ['run', 'deploy', 'callback-logger', '--image', 'gcr.io/dotted-byway-356119/callback-logger-image', '--region', 'europe-west1', '--port', '3501']
+images:
+- gcr.io/dotted-byway-356119/callback-logger-image
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callback-logger/package.json

+{
+  "name": "callback-logger",
+  "version": "1.0.0",
+  "type": "module",
+  "private": true,
+  "license": "UNLICENSED",
+  "description": "REST API to log callbacks from Jolocom wallet.",
+  "scripts": {
+    "start": "nodemon ./app/app.js",
+    "start-prod": "NODE_ENV=production node ./app/app.js",
+    "swagger-autogen": "node ./swagger.js"
+  },
+  "author": "Luca Dietiker, Ralf Winkelmann",
+  "dependencies": {
+    "body-parser": "^1.20.0",
+    "cors": "^2.8.5",
+    "express": "^4.18.1",
+    "swagger-ui-express": "^4.4.0"
+  },
+  "devDependencies": {
+    "nodemon": "^2.0.16",
+    "swagger-autogen": "^2.21.3"
+  }
+}

callback-logger/swagger-output.json

+{
+  "swagger": "2.0",
+  "info": {
+    "title": "Callback Logger",
+    "description": "Provides endpoint to be used as callback for Jolocom Wallet and log output.",
+    "version": "1.0.0"
+  },
+  "host": "localhost:3501",
+  "basePath": "/",
+  "schemes": [
+    "http"
+  ],
+  "paths": {
+    "/callback/{requestId}": {
+      "post": {
+        "description": "",
+        "parameters": [
+          {
+            "name": "requestId",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "Generated id for request"
+          },
+          {
+            "name": "token",
+            "in": "body",
+            "description": "Token sent back by Jolocom Wallet",
+            "schema": {
+              "type": "object",
+              "properties": {}
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK"
+          }
+        }
+      }
+    }
+  }
+}
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callback-logger/swagger.js

+import swaggerAutogen from 'swagger-autogen';
+
+const doc = {
+  info: {
+    title: 'Callback Logger',
+    description: 'Provides endpoint to be used as callback for Jolocom Wallet and log output.',
+    version: '1.0.0'
+  },
+  host: `localhost:3501`,
+};
+
+const outputFile = './swagger-output.json';
+const endpointsFiles = ['./app/app.js'];
+
+swaggerAutogen()(outputFile, endpointsFiles, doc);
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