typescript-node: clean up require and import (#6947)

* Fix for issue 4656 typescript-node generate invalid require statement instead of import statement

* Fixed broken link under testing templates

* Result of run generate-samples.sh / typescript-node*

* import stmt depending on flag supportsES6

* Update petstore sample for typescript-node

* import ... from stmt for http/request module

* update samples

* update doc

Co-authored-by: William Cheng <wing328hk@gmail.com>

CONTRIBUTING.md

@@ -87,8 +87,7 @@ To add test cases (optional) covering the change in the code generator, please r
 To test the templates, please perform the following:
 
 - Update the Petstore sample by running the shell scripts under the `bin` folder. For example, run `./bin/generate-samples.sh .
-/bin/configs/python*` to update the Python-related samples under [`samples`](https://github.com/openapitools/openapi-generator/t
-ree/master/samples). For Windows, please install [GIT bash](https://gitforwindows.org/). (If you find that there are new files g
+/bin/configs/python*` to update the Python-related samples under [`samples`](https://github.com/openapitools/openapi-generator/tree/master/samples). For Windows, please install [GIT bash](https://gitforwindows.org/). (If you find that there are new files g
 enerated or unexpected changes as a result of the update, that's not unusual as the test cases are added to the OpenAPI spec fro
 m time to time. If you've questions or concerns, please open a ticket to start a discussion)
 - During development it can be helpful to quickly regenerate the samples without recompiling all of openapi-generator, e.g. when you have only updated the mustache templates. This can be done by passing the `-t` parameter: `-t modules/openapi-generator/src/main/resources/python`.

docs/contributing.md

@@ -91,8 +91,7 @@ To add test cases (optional) covering the change in the code generator, please r
 To test the templates, please perform the following:
 
 - Update the Petstore sample by running the shell scripts under the `bin` folder. For example, run `./bin/generate-samples.sh .
-/bin/configs/python*` to update the Python-related samples under [`samples`](https://github.com/openapitools/openapi-generator/t
-ree/master/samples). For Windows, please install [GIT bash](https://gitforwindows.org/). (If you find that there are new files g
+/bin/configs/python*` to update the Python-related samples under [`samples`](https://github.com/openapitools/openapi-generator/tree/master/samples). For Windows, please install [GIT bash](https://gitforwindows.org/). (If you find that there are new files g
 enerated or unexpected changes as a result of the update, that's not unusual as the test cases are added to the OpenAPI spec fro
 m time to time. If you've questions or concerns, please open a ticket to start a discussion)
 - During development it can be helpful to quickly regenerate the samples without recompiling all of openapi-generator, e.g. when you have only updated the mustache templates. This can be done by passing the `-t` parameter: `-t modules/openapi-generator/src/main/resources/python`.

modules/openapi-generator/src/main/resources/typescript-node/api-single.mustache

@@ -1,6 +1,7 @@
 {{>licenseInfo}}
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 {{#imports}}

modules/openapi-generator/src/main/resources/typescript-node/models.mustache

@@ -4,7 +4,7 @@ export * from '{{{ classFilename }}}';
 {{/model}}
 {{/models}}
 
-import localVarRequest = require('request');
+import localVarRequest from 'request';
 
 {{#models}}
 {{#model}}

modules/openapi-generator/src/main/resources/typescript-node/tsconfig.mustache

@@ -4,6 +4,8 @@
         "noImplicitAny": false,
         "suppressImplicitAnyIndexErrors": true,
         "target": "{{#supportsES6}}ES6{{/supportsES6}}{{^supportsES6}}ES5{{/supportsES6}}",
+        "allowSyntheticDefaultImports": true,
+        "esModuleInterop": true,
         "strict": true,
         "moduleResolution": "node",
         "removeComments": true,

samples/client/petstore/typescript-node/default/api/petApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { ApiResponse } from '../model/apiResponse';

samples/client/petstore/typescript-node/default/api/storeApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { Order } from '../model/order';

samples/client/petstore/typescript-node/default/api/userApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { User } from '../model/user';

samples/client/petstore/typescript-node/default/model/models.ts

@@ -5,7 +5,7 @@ export * from './pet';
 export * from './tag';
 export * from './user';
 
-import localVarRequest = require('request');
+import localVarRequest from 'request';
 
 import { ApiResponse } from './apiResponse';
 import { Category } from './category';

samples/client/petstore/typescript-node/npm/api/petApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { ApiResponse } from '../model/apiResponse';

samples/client/petstore/typescript-node/npm/api/storeApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { Order } from '../model/order';

samples/client/petstore/typescript-node/npm/api/userApi.ts

@@ -10,8 +10,9 @@
  * Do not edit the class manually.
  */
 
-import localVarRequest = require('request');
-import http = require('http');
+
+import localVarRequest from 'request';
+import http from 'http';
 
 /* tslint:disable:no-unused-locals */
 import { User } from '../model/user';

samples/client/petstore/typescript-node/npm/model/models.ts

@@ -5,7 +5,7 @@ export * from './pet';
 export * from './tag';
 export * from './user';
 
-import localVarRequest = require('request');
+import localVarRequest from 'request';
 
 import { ApiResponse } from './apiResponse';
 import { Category } from './category';

samples/client/petstore/typescript-node/npm/tsconfig.json

@@ -4,6 +4,8 @@
         "noImplicitAny": false,
         "suppressImplicitAnyIndexErrors": true,
         "target": "ES5",
+        "allowSyntheticDefaultImports": true,
+        "esModuleInterop": true,
         "strict": true,
         "moduleResolution": "node",
         "removeComments": true,