[Fix/issue#540] Curl codesnippet's JSON body must follow multiLine option's configuration

codegens/curl/lib/index.js

@@ -151,9 +151,20 @@ self = module.exports = {
             let rawBody = body.raw.toString(),
               isAsperandPresent = _.includes(rawBody, '@'),
               // Use the long option if `@` is present in the request body otherwise follow user setting
-              optionName = isAsperandPresent ? '--data-raw' : form('-d', format);
-            // eslint-disable-next-line max-len
-            snippet += indent + `${optionName} ${quoteType}${sanitize(rawBody, trim, quoteType)}${quoteType}`;
+              optionName = isAsperandPresent ? '--data-raw' : form('-d', format),
+              sanitizedBody = sanitize(rawBody, trim, quoteType);
+
+            if (!multiLine) {
+              try {
+                sanitizedBody = JSON.stringify(JSON.parse(sanitizedBody));
+              }
+              catch (e) {
+                // Do nothing
+              }
+            }
+
+            snippet += indent + `${optionName} ${quoteType}${sanitizedBody}${quoteType}`;
+
             break;
           }
 

codegens/curl/test/unit/convert.test.js

@@ -289,6 +289,50 @@ describe('curl convert function', function () {
       });
     });
 
+    it('should return snippet with JSON body in single line if multiline option is false', function () {
+      request = new Request({
+        'method': 'POST',
+        'header': [],
+        'body': {
+          'mode': 'raw',
+          'raw': '{\n  "name": "John",\n  "type": "names",\n  "id": "123sdaw"\n}',
+          'options': {
+            'raw': {
+              'language': 'json'
+            }
+          }
+        },
+        'url': {
+          'raw': 'https://postman-echo.com/post',
+          'protocol': 'https',
+          'host': [
+            'postman-echo',
+            'com'
+          ],
+          'path': [
+            'post'
+          ]
+        }
+      });
+      options = {
+        multiLine: false,
+        longFormat: false,
+        lineContinuationCharacter: '\\',
+        quoteType: 'single',
+        requestTimeoutInSeconds: 0,
+        followRedirect: true,
+        followOriginalHttpMethod: false
+      };
+
+      convert(request, options, function (error, snippet) {
+        if (error) {
+          expect.fail(null, null, error);
+        }
+        expect(snippet).to.be.a('string');
+        expect(snippet).to.contain('-d \'{"name":"John","type":"names","id":"123sdaw"}\'');
+      });
+    });
+
     it('should return snippet with backslash(\\) character as line continuation ' +
          'character for multiline code generation', function () {
       request = new Request({