feat: déclaration de la configuration applicative

Ça a le bénéfice de faire planter l'application au démarrage en cas de réglage absent.

export/package.json

@@ -11,7 +11,7 @@
   "scripts": {
     "test": "jest",
     "start": "node src/app.js",
-    "dev": "npx dotenv -e ../stylo.env npm run start",
+    "dev": "node src/app.js",
     "prod": "NODE_ENV=production node --heapsnapshot-signal=SIGUSR2 src/app.js"
   },
   "repository": {
@@ -33,6 +33,8 @@
   "homepage": "https://github.com/EcrituresNumeriques/stylo#readme",
   "dependencies": {
     "archiver": "5.3.2",
+    "convict": "^6.2.4",
+    "convict-format-with-validator": "^6.2.0",
     "cors": "^2.8.5",
     "express": "^4.16.4",
     "graphql": "^16.1.0",
@@ -44,7 +46,6 @@
   },
   "devDependencies": {
     "dotenv": "^16.0.1",
-    "dotenv-cli": "^5.1.0",
     "jest": "^29.5.0"
   },
   "husky": {

export/src/app.js

@@ -4,6 +4,8 @@ const { logger } = require('./logger')
 const pino = require('pino-http')({
   logger
 })
+const config = require('./config.js')
+config.validate({ allowed: 'strict' })
 
 const {
   exportArticleHtml,
@@ -29,7 +31,7 @@ app.use(cors({
   origin: '*'
 }))
 
-const listenPort = process.env.PORT || 3060
+const listenPort = config.get('port')
 
 const asyncExportVersionHtml = asyncHandler(exportVersionHtml)
 const asyncExportArticleHtml = asyncHandler(exportArticleHtml)

export/src/config.js

@@ -0,0 +1,41 @@
+const convict = require('convict')
+require('dotenv').config({ path: '../../stylo.env' })
+
+convict.addFormat(require('convict-format-with-validator').url)
+
+/**
+ * @type {convict.Config<{
+ *
+ * }>}
+ */
+module.exports = convict({
+  port: {
+    default: 3060,
+    format: 'port',
+    env: 'PORT'
+  },
+  api: {
+    urlEndpoint: {
+      default: 'http://localhost:3030/graphql',
+      format: 'url',
+      env: 'SNOWPACK_PUBLIC_GRAPHQL_ENDPOINT'
+    },
+    passthroughToken: {
+      format: 'string',
+      sensitive: true,
+      env: 'SE_GRAPHQL_TOKEN'
+    }
+  },
+  export: {
+    // legacy option
+    canonicalBaseUrl: {
+      format: 'url',
+      env: 'EXPORT_CANONICAL_BASE_URL'
+    },
+    urlEndpoint: {
+      default: 'http://127.0.0.1:3080',
+      format: 'url',
+      env: 'SNOWPACK_PUBLIC_PANDOC_EXPORT_ENDPOINT'
+    }
+  }
+})

export/src/export.js

@@ -1,12 +1,13 @@
+const config = require('./config.js')
 const archiver = require('archiver')
 
 const { logger } = require('./logger')
 const { FindByIdNotFoundError } = require('./helpers/errors')
 const { normalize } = require('./helpers/filename')
 const { getArticleById, getVersionById, getCorpusById } = require('./graphql')
 
-const canonicalBaseUrl = process.env.EXPORT_CANONICAL_BASE_URL
-const exportEndpoint = process.env.SNOWPACK_PUBLIC_PANDOC_EXPORT_ENDPOINT || 'http://127.0.0.1:3080'
+const canonicalBaseUrl = config.get('export.canonicalBaseUrl')
+const exportEndpoint = config.get('export.urlEndpoint')
 
 const exportZip = async ({ bib, yaml, md, id, versionId, title }, res, _) => {
   const filename = `${normalize(title)}.zip`

export/src/graphql.js

@@ -17,8 +17,9 @@ function getGraphQLClient () {
   if (graphQLClient) {
     return graphQLClient
   }
-  const graphqlEndpoint = process.env.SNOWPACK_PUBLIC_GRAPHQL_ENDPOINT || 'http://localhost:3030/graphql'
-  const passthroughToken = process.env.SE_GRAPHQL_TOKEN
+  const graphqlEndpoint = config.get('api.urlEndpoint')
+  const passthroughToken = config.get('api.passthroughToken')
+
   graphQLClient = new GraphQLClient(graphqlEndpoint, {
     headers: {
       authorization: `Bearer ${passthroughToken}`,