Stripe initial impl (#27)

davidcheung · web-flow · commit 5f551b1a7ba8 · 2021-05-17T13:50:33.000-04:00
* stripe iniitial implementation
diff --git a/Makefile b/Makefile
@@ -11,7 +11,7 @@ PROJECT_NAME := ${PROJECT_NAME}
 
 .EXPORT_ALL_VARIABLES:
 
-run: ci_setup
+run: ci_setup billing_setup
 	@echo "\nDone"
 
 ci_setup:
@@ -23,6 +23,11 @@ ifeq ($(CIVendor), circleci)
 ci_setup: circle_ci_setup
 endif
 
+billing_setup:
+ifeq ($(billingEnabled), yes)
+	sh scripts/setup-stripe-secrets.sh
+endif
+
 circle_ci_setup:
 	@echo "Set CIRCLECI environment variables\n"
 	export AWS_ACCESS_KEY_ID=$(shell aws secretsmanager get-secret-value --region ${region} --secret-id=${PROJECT_NAME}-ci-user-aws-keys${randomSeed} | jq -r '.SecretString'| jq -r .access_key_id)
diff --git a/README.md b/README.md
@@ -21,6 +21,14 @@ This repository is language/business-logic agnostic; mainly showcasing some univ
 |-- Makefile                        #make command triggers the initialization of repository
 |-- zero-module.yml                 #module declares required parameters and credentials
 |   # files in templates become the repo for users
+|   scripts/
+|   |   # these are scripts called only once during zero apply, and we don't
+|   |   # expect a need to rerun them throughout development of the  repository
+|   |   # used for checking binary requires / setting up CI / secrets
+|   |   |-- check.sh
+|   |   |-- gha-setup.sh
+|   |   |-- required-bins.sh
+|   |   |-- setup-stripe-secrets.sh
 |   templates/
 |   |   # this makefile is used both during init and
 |   |   # on-going needs/utilities for user to maintain their infrastructure
diff --git a/scripts/setup-stripe-secrets.sh b/scripts/setup-stripe-secrets.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# This script runs only when billingEnabled = "yes", invoked from makefile
+# modify the kubernetes application secret and appends STRIPE_API_SECRET_KEY
+# the deployment by default will pick up all key-value pairs as env-vars from the secret
+
+if [[ "$ENVIRONMENT" == "" ]]; then
+  echo "Must specify \$ENVIRONMENT to create stripe secret ">&2; exit 1;
+elif [[ "$ENVIRONMENT" == "stage" ]]; then
+PUBLISHABLE_API_KEY=$stagingStripePublicApiKey
+SECRET_API_KEY=$stagingStripeSecretApiKey
+elif [[ "$ENVIRONMENT" == "prod" ]]; then
+PUBLISHABLE_API_KEY=$productionStripePublicApiKey
+SECRET_API_KEY=$productionStripeSecretApiKey
+fi
+
+CLUSTER_NAME=${PROJECT_NAME}-${ENVIRONMENT}-${REGION}
+NAMESPACE=${PROJECT_NAME}
+
+BASE64_TOKEN=$(printf ${SECRET_API_KEY} | base64)
+## Modify existing application secret to have stripe api key
+kubectl --context $CLUSTER_NAME -n $NAMESPACE get secret ${PROJECT_NAME} -o json | \
+  jq --arg STRIPE_API_SECRET_KEY $BASE64_TOKEN '.data["STRIPE_API_SECRET_KEY"]=$STRIPE_API_SECRET_KEY' \
+  | kubectl apply -f -
+
+sh ${PROJECT_DIR}/scripts/stripe-example-setup.sh
diff --git a/templates/.env.example b/templates/.env.example
@@ -1,6 +1,6 @@
-DATABASE_ENGINE=
+DATABASE_ENGINE=<% index .Params `database` %>
 DATABASE_HOST=
-DATABASE_PORT=
+DATABASE_PORT=<%if eq (index .Params `database`) "postgres" %>5432<% else if eq (index .Params `database`) "mysql" %>3306<% end %>
 DATABASE_PASSWORD=
 DATABASE_USERNAME=
 DATABASE_NAME=
diff --git a/templates/README.md b/templates/README.md
@@ -113,7 +113,26 @@ ALTER TABLE address
  ADD COLUMN city VARCHAR(30) AFTER street_name,
  ADD COLUMN province VARCHAR(30) AFTER city
 ```
+<%if eq (index .Params `billingEnabled`) "yes" %>
+## Billing example
+A subscription and checkout example using [Stripe](https://stripe.com), coupled with the frontend repository to provide an end-to-end checkout example for you to customize. We also setup a webhook and an endpoint in the backend to receive webhook when events occur.
 
+### Setup
+The following example content has been set up in Stripe:
+- 1 product
+- 3 prices(subscriptions) [annual, monthly, daily]
+- 1 webhook [`charge.failed`, `charge.succeeded`, `customer.created`, `subscription_schedule.created`] 
+See link for available webhooks: https://stripe.com/docs/api/webhook_endpoints/create?lang=curl#create_webhook_endpoint-enabled_events
+
+this is setup using the script [scripts/stripe-example-setup.sh](scripts/stripe-example-setup.sh)
+
+### Deployment
+The deployment only requires the environment variables:
+- STRIPE_API_SECRET_KEY (created in AWS secret then deployed via Kubernetes Secret)
+- FRONTEND_URL (used for sending user back to frontend upon checkouts)
+- BACKEND_URL (used for redirects after checkout and webhooks)
+
+<% end %>
 <!-- Links -->
 [base-cronjob]: ./kubernetes/base/cronjob.yml
 [base-deployment]: ./kubernetes/base/deployment.yml
diff --git a/templates/kubernetes/base/deployment.yml b/templates/kubernetes/base/deployment.yml
@@ -40,14 +40,17 @@ spec:
           envFrom:
           - configMapRef:
               name: <% .Name %>-config
+          - secretRef:
+              name: <% .Name %>
           env:
           - name: SERVER_PORT
             value: "80"
           - name: POD_NAME
             valueFrom:
               fieldRef:
                 fieldPath: metadata.name
-<% if eq (index .Params `fileUploads`) "yes" %>          - name: CF_KEYPAIR_ID
+<%- if eq (index .Params `fileUploads`) "yes" %>
+          - name: CF_KEYPAIR_ID
             valueFrom:
                 secretKeyRef:
                   name: cf-keypair
@@ -57,16 +60,7 @@ spec:
                 secretKeyRef:
                   name: cf-keypair
                   key: private_key
-<% end %>          - name: DATABASE_USERNAME
-            valueFrom:
-                secretKeyRef:
-                  name: <% .Name %>
-                  key: DATABASE_USERNAME
-          - name: DATABASE_PASSWORD
-            valueFrom:
-                secretKeyRef:
-                  name: <% .Name %>
-                  key: DATABASE_PASSWORD
+<%- end %>
 ---
 apiVersion: autoscaling/v1
 kind: HorizontalPodAutoscaler
diff --git a/templates/kubernetes/overlays/production/auth.yml b/templates/kubernetes/overlays/production/auth.yml
@@ -7,7 +7,7 @@ metadata:
   name: public-backend-endpoints
 spec:
   match:
-    url: http://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>/status/<.*>
+    url: http://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>/<(status|webhook)\/.*>
 ---
 ## Backend User-restricted endpoint
 # pattern: http://<proxy>/<not [/.ory/kratos and /status]>
@@ -21,5 +21,5 @@ metadata:
   name: authenticated-backend-endpoints
 spec:
   match:
-    url: http://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>/<(?!(status|\.ory\/kratos)).*>
+    url: http://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>/<(?!(status|webhook|\.ory\/kratos)).*>
 
diff --git a/templates/kubernetes/overlays/production/kustomization.yml b/templates/kubernetes/overlays/production/kustomization.yml
@@ -18,4 +18,6 @@ configMapGenerator:
   literals:
     - ENVIRONMENT=production
     - DOMAIN=<% index .Params `productionHostRoot` %>
+    - BACKEND_URL=https://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>
+    - FRONTEND_URL=https://<% index .Params `productionFrontendSubdomain` %><% index .Params `productionHostRoot` %>
     - S3_BUCKET=files.<% index .Params `productionHostRoot` %>
diff --git a/templates/kubernetes/overlays/staging/auth.yml b/templates/kubernetes/overlays/staging/auth.yml
@@ -7,7 +7,7 @@ metadata:
   name: public-backend-endpoints
 spec:
   match:
-    url: http://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>/status/<.*>
+    url: http://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>/<(status|webhook)\/.*>
 ---
 ## Backend User-restricted endpoint
 # pattern: http://<proxy>//api
@@ -21,4 +21,4 @@ metadata:
   name: authenticated-backend-endpoints
 spec:
   match:
-    url: http://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>/<(?!(status|\.ory\/kratos)).*>
+    url: http://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>/<(?!(status|webhook|\.ory\/kratos)).*>
diff --git a/templates/kubernetes/overlays/staging/kustomization.yml b/templates/kubernetes/overlays/staging/kustomization.yml
@@ -17,4 +17,6 @@ configMapGenerator:
   literals:
     - ENVIRONMENT=staging
     - DOMAIN=<% index .Params `stagingHostRoot` %>
+    - BACKEND_URL=https://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>
+    - FRONTEND_URL=https://<% index .Params `stagingFrontendSubdomain` %><% index .Params `stagingHostRoot` %>
     - S3_BUCKET=files.<% index .Params `stagingHostRoot` %>
diff --git a/templates/package.json b/templates/package.json
@@ -15,22 +15,29 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    <%if eq (index .Params `apiType`) "graphql" %>
+    <%- if eq (index .Params `apiType`) "graphql" %>
     "apollo-datasource": "^0.7.3",
     "apollo-datasource-rest": "^0.9.7",
     "apollo-server-express": "^2.19.2",
     "graphql": "^15.5.0",
     "graphql-combine": "^1.0.1",
-    <% end %>
+    <%- end %>
     "aws-cloudfront-sign": "^2.2.0",
     "aws-sdk": "^2.744.0",
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "express-busboy": "^8.0.0",
     "morgan": "^1.10.0",
-    <%if eq (index .Params `database`) "postgres" %>"pg": "^8.4.1",
-    "pg-hstore": "^2.3.3",<% else if eq (index .Params `database`) "mysql" %>"mysql2": "^2.2.5",<% end %>
+    <%- if eq (index .Params `database`) "postgres" %>
+    "pg": "^8.4.1",
+    "pg-hstore": "^2.3.3",
+    <%- else if eq (index .Params `database`) "mysql" %>
+    "mysql2": "^2.2.5",
+    <%- end %>
     "sequelize": "^6.3.5"
+    <%- if eq (index .Params `billingEnabled`) "yes" %>,
+    "stripe": "^8.143.0"
+    <%- end %>
   },
   "devDependencies": {
     "eslint": "^7.10.0",
diff --git a/templates/scripts/stripe-example-setup.sh b/templates/scripts/stripe-example-setup.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+set -e
+
+# Creates stripe example for frontend/backend for checkout and subscription
+# the script uses the token and creates the following for the end-to-end example to work
+# - 1 product
+# - 3 plans
+# - 1 webhook
+#
+# If you want to recreate this you can use the curl requests as an example below.
+
+PROJECT_NAME=<% .Name %>
+RANDOM_SEED=<% index .Params `randomSeed` %>
+REGION=<% index .Params `region` %>
+
+echo "Running on ${ENVIRONMENT}"
+if [[ "$ENVIRONMENT" == "" ]]; then
+  exit 1;
+elif [[ "$ENVIRONMENT" == "stage" ]]; then
+BACKEND_API_WEBHOOK_ENDPOINT="https://<% index .Params `stagingBackendSubdomain` %><% index .Params `stagingHostRoot` %>/webhook/stripe"
+PUBLISHABLE_API_KEY=$stagingStripePublicApiKey
+SECRET_API_KEY=$stagingStripeSecretApiKey
+elif [[ "$ENVIRONMENT" == "prod" ]]; then
+BACKEND_API_WEBHOOK_ENDPOINT="https://<% index .Params `productionBackendSubdomain` %><% index .Params `productionHostRoot` %>/webhook/stripe"
+PUBLISHABLE_API_KEY=$productionStripePublicApiKey
+SECRET_API_KEY=$productionStripeSecretApiKey
+fi
+
+TOKEN=$(echo $SECRET_API_KEY | base64)
+AUTH_HEADER="Authorization: Basic ${TOKEN}"
+
+## Create Product
+PRODUCT_ID=$(curl -XPOST \
+  --url https://api.stripe.com/v1/products \
+  --header "${AUTH_HEADER}" \
+  -d "name"="$PROJECT_NAME" | jq -r ".id")
+
+curl https://api.stripe.com/v1/prices \
+  --header "${AUTH_HEADER}" \
+  -d "product"="$PRODUCT_ID" \
+  -d "unit_amount"=5499 \
+  -d "currency"="CAD" \
+  -d "recurring[interval]=month" \
+  -d "nickname"="Monthly Plan"
+
+curl https://api.stripe.com/v1/prices \
+  --header "${AUTH_HEADER}" \
+  -d "product"="$PRODUCT_ID" \
+  -d "unit_amount"=299 \
+  -d "currency"="CAD" \
+  -d "recurring[interval]=day" \
+  -d "nickname"="Daily Plan"
+
+  curl https://api.stripe.com/v1/prices \
+  --header "${AUTH_HEADER}" \
+  -d "product"="$PRODUCT_ID" \
+  -d "unit_amount"=50000 \
+  -d "currency"="CAD" \
+  -d "recurring[interval]=year" \
+  -d "nickname"="Annual Plan"
+
+# Create webhook on stripe platform
+# See link for available webhooks: https://stripe.com/docs/api/webhook_endpoints/create?lang=curl#create_webhook_endpoint-enabled_events
+curl https://api.stripe.com/v1/webhook_endpoints \
+  --header "${AUTH_HEADER}" \
+  -d url="${BACKEND_API_WEBHOOK_ENDPOINT}" \
+  -d "enabled_events[]"="charge.failed" \
+  -d "enabled_events[]"="charge.succeeded" \
+  -d "enabled_events[]"="customer.created"  \
+  -d "enabled_events[]"="subscription_schedule.created"
diff --git a/templates/src/app.js b/templates/src/app.js
@@ -2,28 +2,30 @@ const dotenv = require("dotenv");
 const express = require("express");
 const morgan = require("morgan");
 const dbDatasource = require("./db");
-<%if eq (index .Params `fileUploads`) "yes" %>const fileRoutes = require("./app/file");<% end %>
-<%if eq (index .Params `userAuth`) "yes" %>const authRoutes = require("./app/auth");
-const { authMiddleware } = require("./middleware/auth");<% end %>
-const statusRoutes = require("./app/status");
+<%if eq (index .Params `fileUploads`) "yes" %>const fileRoutes = require("./app/file");
+<%- end %>
+<%- if eq (index .Params `userAuth`) "yes" %>const authRoutes = require("./app/auth");
+const { authMiddleware } = require("./middleware/auth");
+<%- end %>
+<%- if eq (index .Params `billingEnabled`) "yes" %>const billingRoutes = require("./app/billing");
+<%- end %>
+const publicRoutes = require("./app/public");
 
 dotenv.config();
 const app = express();
 app.use(morgan("combined"));
 app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
 
-<%if eq (index .Params `userAuth`) "yes" %>app.use(authMiddleware);
-app.use("/auth", authRoutes);<% end %>
-
-<%if eq (index .Params `fileUploads`) "yes" %>app.use("/file", fileRoutes);<% end %>
+// these are placed before the auth middleware, so will not 401 upon non-authenticated requests
+app.use("/", publicRoutes);
 
-app.use("/status", statusRoutes);
+<% if eq (index .Params `userAuth`) "yes" %>app.use(authMiddleware);
+app.use("/auth", authRoutes);<% end %>
+<% if eq (index .Params `fileUploads`) "yes" %>app.use("/file", fileRoutes);<% end %>
+<% if eq (index .Params `billingEnabled`) "yes" %>app.use("/billing", billingRoutes);<% end %>
 
-const port = process.env.SERVER_PORT;
-if (!port) {
-  port = 3000;
-}
+const port = process.env.SERVER_PORT || 8080;
 
 const main = async () => {
   // remove this block for development, just for verifying DB
diff --git a/templates/src/app/billing/index.js b/templates/src/app/billing/index.js
diff --git a/templates/src/app/public/index.js b/templates/src/app/public/index.js
diff --git a/templates/src/app/status/index.js b/templates/src/app/status/index.js
diff --git a/zero-module.yml b/zero-module.yml
