base for csv export

api/sample.yaml

@@ -36,6 +36,12 @@
         schema:
           type: string
         example: color-asc
+      - name: csv
+        description: output as csv
+        in: query
+        schema:
+          type: boolean
+        example: false
     responses:
       200:
         description: samples overview

package-lock.json

@@ -2203,6 +2203,23 @@
       "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.5.tgz",
       "integrity": "sha512-gWJOWYFrhQ8j7pVm0EM8Slr+EPVq1Phf6lvzvD/WCeqkrx/f2xBI0xOsRRS9xCn3I4vKtP519dvs3TP09r24wQ=="
     },
+    "json2csv": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/json2csv/-/json2csv-5.0.1.tgz",
+      "integrity": "sha512-QFMifUX1y8W2tKi2TwZpnzf2rHdZvzdmgZUMEMDF46F90f4a9mUeWfx/qg4kzXSZYJYc3cWA5O+eLXk5lj9g8g==",
+      "requires": {
+        "commander": "^5.0.0",
+        "jsonparse": "^1.3.1",
+        "lodash.get": "^4.4.2"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-5.1.0.tgz",
+          "integrity": "sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg=="
+        }
+      }
+    },
     "json5": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/json5/-/json5-2.1.3.tgz",
@@ -2212,6 +2229,11 @@
         "minimist": "^1.2.5"
       }
     },
+    "jsonparse": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz",
+      "integrity": "sha1-P02uSpH6wxX3EGL4UhzCOfE2YoA="
+    },
     "jszip": {
       "version": "3.5.0",
       "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.5.0.tgz",

package.json

@@ -31,6 +31,7 @@
     "express": "^4.17.1",
     "helmet": "^3.22.0",
     "json-schema": "^0.2.5",
+    "json2csv": "^5.0.1",
     "lodash": "^4.17.15",
     "mongo-sanitize": "^1.1.0",
     "mongoose": "^5.8.7",

src/helpers/authorize.ts

@@ -89,8 +89,10 @@ function key (req, next): any {  // checks API key and returns changed user obje
         if (err) return next(err);
         if (data.length === 1) {  // one user found
           resolve({level: data[0].level, name: data[0].name, id: data[0]._id.toString(), location: data[0].location});
+          if (!/^\/api/m.test(req.url)){
             delete req.query.key;  // delete query parameter to avoid interference with later validation
           }
+        }
         else {
           resolve(null);
         }

src/helpers/csv.ts

@@ -0,0 +1,7 @@
+import {parseAsync} from 'json2csv';
+
+export default function csv(input: object, fields: string[], f: (err, data) => void) {
+  parseAsync(input)
+    .then(csv => f(null, csv))
+    .catch(err => f(err, null));
+}

src/index.ts

@@ -48,9 +48,8 @@ app.use(require('./helpers/authorize'));  // handle authentication
 
 // redirect /api routes for Angular proxy in development
 if (process.env.NODE_ENV !== 'production') {
-  app.use('/api/:url([^]+)', (req, res) => {
+  app.use('/api/:url([^]+)', (req, ignore) => {
     req.url = '/' + req.params.url;
-    app.handle(req, res);
   });
 }
 

src/routes/sample.spec.ts

@@ -244,6 +244,21 @@ describe('/sample', () => {
         done();
       });
     });
+    it('returns a correct csv file if specified', done => {
+      TestHelper.request(server, done, {
+        method: 'get',
+        url: '/samples?status=all&page-size=2&csv=true',
+        contentType: /text\/csv/,
+        auth: {basic: 'janedoe'},
+        httpStatus: 200
+      }).end((err, res) => {
+        if (err) return done(err);
+        should(res.text).be.eql('"_id","number","type","color","batch","condition","material_id","note_id","user_id","added"\r\n' +
+          '"400000000000000000000001","1","granulate","black","","{""material"":""copper"",""weeks"":3,""condition_template"":""200000000000000000000001""}","100000000000000000000004",,"000000000000000000000002","2004-01-10T13:37:04.000Z"\r\n' +
+          '"400000000000000000000002","21","granulate","natural","1560237365","{""material"":""copper"",""weeks"":3,""condition_template"":""200000000000000000000001""}","100000000000000000000001","500000000000000000000001","000000000000000000000002","2004-01-10T13:37:04.000Z"');
+        done();
+      });
+    });
     it('rejects a negative page size', done => {
       TestHelper.request(server, done, {
         method: 'get',

src/routes/sample.ts

@@ -15,6 +15,7 @@ import ConditionTemplateModel from '../models/condition_template';
 import ParametersValidate from './validate/parameters';
 import globals from '../globals';
 import db from '../db';
+import csv from '../helpers/csv';
 
 
 const router = express.Router();
@@ -54,7 +55,10 @@ router.get('/samples', async (req, res, next) => {
       {$lookup: { from: 'material_groups', localField: 'material.group_id', foreignField: '_id', as: 'material.group' }},
       {$set: {'material.group': { $arrayElemAt: ['$material.group.name', 0]}}},
       {$lookup: { from: 'material_suppliers', localField: 'material.supplier_id', foreignField: '_id', as: 'material.supplier'}},
-      {$set: {'material.supplier': {$arrayElemAt: ['$material.supplier.name', 0]}}}
+      {$set: {'material.supplier': {$arrayElemAt: ['$material.supplier.name', 0]}}},
+      {$set: {'material.number': { $arrayElemAt: ['$material.numbers.number', {$indexOfArray: ['$material.numbers.color', '$color']}]}
+        }
+      }
     );
   }
 
@@ -92,7 +96,16 @@ router.get('/samples', async (req, res, next) => {
     if (filters['to-page'] < 0) {
       data.reverse();
     }
+    if (filters.csv) {  // output as csv  // TODO: csv example in OAS
+      csv(_.compact(data.map(e => SampleValidate.output(e))), ['_id', 'number'], (err, data) => {
+        if (err) return next(err);
+        res.set('Content-Type', 'text/csv');
+        res.send(data);
+      });
+    }
+    else {
       res.json(_.compact(data.map(e => SampleValidate.output(e))));  // validate all and filter null values from validation errors
+    }
   })
 });
 

src/routes/validate/sample.ts

@@ -133,7 +133,8 @@ export default class SampleValidate {
       'from-id': IdValidate.get(),
       'to-page': Joi.number().integer(),
       'page-size': Joi.number().integer().min(1),
-      sort: Joi.string().pattern(/^(_id|color|number|type|batch|added|material\.name|material\.supplier|material\.group|material\.mineral|material\.glass_fiber|material\.carbon_fiber)-(asc|desc)$/m).default('_id-asc')  // TODO: material keys
+      sort: Joi.string().pattern(/^(_id|color|number|type|batch|added|material\.name|material\.supplier|material\.group|material\.mineral|material\.glass_fiber|material\.carbon_fiber|material\.number)-(asc|desc)$/m).default('_id-asc'),
+      csv: Joi.boolean().default(false)
     }).with('to-page', 'page-size').validate(data);
   }
 }

src/test/helper.ts

@@ -38,15 +38,7 @@ export default class TestHelper {
     return server
   }
 
-  static afterEach (server, done) {
-    server.close(done);
-  }
-
-  static after(done) {
-    db.disconnect(done);
-  }
-
-  static request (server, done, options) {  // options in form: {method, url, auth: {key/basic: 'name' or 'key'/{name, pass}}, httpStatus, req, res, default (set to false if you want to dismiss default .end handling)}
+  static request (server, done, options) {  // options in form: {method, url, contentType, auth: {key/basic: 'name' or 'key'/{name, pass}}, httpStatus, req, res, default (set to false if you want to dismiss default .end handling)}
     let st = supertest(server);
     if (options.hasOwnProperty('auth') && options.auth.hasOwnProperty('key')) {  // resolve API key
       options.url += '?key=' + (this.auth.hasOwnProperty(options.auth.key)? this.auth[options.auth.key].key : options.auth.key);
@@ -79,8 +71,12 @@ export default class TestHelper {
         st = st.auth(options.auth.basic.name, options.auth.basic.pass)
       }
     }
-    st = st.expect('Content-type', /json/)
-      .expect(options.httpStatus);
+    if (options.hasOwnProperty('contentType')) {
+      st = st.expect('Content-type', options.contentType).expect(options.httpStatus);
+    }
+    else {
+      st = st.expect('Content-type', /json/).expect(options.httpStatus);
+    }
     if (options.hasOwnProperty('res')) {  // evaluate result
       return st.end((err, res) => {
         if (err) return done (err);
@@ -128,4 +124,12 @@ export default class TestHelper {
       return st;
     }
   }
+
+  static afterEach (server, done) {
+    server.close(done);
+  }
+
+  static after(done) {
+    db.disconnect(done);
+  }
 }