feat: implement Sprint RestClient target

Author: jamezrin

TARGETS.md

@@ -40,6 +40,16 @@ Currently the following output targets are supported:
 | --------- | ------- | -------------------------------- |
 | `indent`  | `  `    | line break & indent output value |
 
+### [RestClient](https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/client/RestClient.html)
+
+> Spring Framework REST client
+
+###### Options
+
+| Option    | Default | Description                      |
+| --------- | ------- | -------------------------------- |
+| `indent`  | `  `    | line break & indent output value |
+
 ----
 
 ## JavaScript

src/targets/java/index.js

@@ -11,5 +11,6 @@ module.exports = {
   okhttp: require('./okhttp'),
   unirest: require('./unirest'),
   asynchttp: require('./asynchttp'),
-  nethttp: require('./nethttp')
+  nethttp: require('./nethttp'),
+  restclient: require('./restclient')
 }

src/targets/java/restclient.js

@@ -0,0 +1,81 @@
+/**
+ * @description
+ * HTTP code snippet generator for Java using Spring RestClient.
+ *
+ * @author
+ * @jamezrin
+ *
+ * for any questions or issues regarding the generated code snippet, please open an issue mentioning the author.
+ */
+
+'use strict'
+
+const CodeBuilder = require('../../helpers/code-builder')
+
+const standardMethods = ['GET', 'HEAD', 'POST', 'PUT', 'PATCH', 'DELETE', 'OPTIONS', 'TRACE']
+
+module.exports = function (source, options) {
+  const opts = Object.assign({
+    indent: '  '
+  }, options)
+
+  const code = new CodeBuilder(opts.indent)
+
+  code.push('RestClient restClient = RestClient.create();')
+    .blank()
+
+  code.push('ResponseEntity<String> response = restClient')
+
+  if (standardMethods.includes(source.method.toUpperCase())) {
+    code.push(1, '.method(HttpMethod.%s)', source.method.toUpperCase())
+  } else {
+    code.push(1, '.method(HttpMethod.valueOf("%s"))', source.method.toUpperCase())
+  }
+
+  code.push(1, '.uri("%s")', source.fullUrl)
+
+  if (source.cookies && source.cookies.length) {
+    source.cookies.forEach(function (cookie) {
+      code.push(1, '.cookie("%s", "%s")', cookie.name, cookie.value)
+    })
+  }
+
+  const headers = Object.keys(source.allHeaders).filter(function (key) {
+    return key.toLowerCase() !== 'cookie'
+  })
+  if (headers.length) {
+    headers.forEach(function (key) {
+      code.push(1, '.header("%s", "%qd")', key, source.allHeaders[key])
+    })
+  }
+
+  if (source.postData && source.postData.text) {
+    if (source.postData.mimeType === 'application/json') {
+      code.push(1, '.contentType(MediaType.APPLICATION_JSON)')
+      code.push(1, '.body(%s)', JSON.stringify(source.postData.text))
+    } else if (source.postData.mimeType === 'application/x-www-form-urlencoded') {
+      code.push(1, '.contentType(MediaType.APPLICATION_FORM_URLENCODED)')
+      code.push(1, '.body(%s)', JSON.stringify(source.postData.text))
+    } else if (source.postData.mimeType && source.postData.mimeType.startsWith('multipart/form-data')) {
+      code.push(1, '.contentType(MediaType.parseMediaType("multipart/form-data"))')
+      code.push(1, '.body(%s)', JSON.stringify(source.postData.text))
+    } else {
+      if (source.postData.mimeType) {
+        code.push(1, '.contentType(MediaType.parseMediaType("%s"))', source.postData.mimeType)
+      }
+      code.push(1, '.body(%s)', JSON.stringify(source.postData.text))
+    }
+  }
+
+  code.push(1, '.retrieve()')
+  code.push(1, '.toEntity(String.class);')
+
+  return code.join()
+}
+
+module.exports.info = {
+  key: 'restclient',
+  title: 'Spring RestClient',
+  link: 'https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/client/RestClient.html',
+  description: 'Spring Framework REST client'
+}

test/fixtures/available-targets.json

@@ -226,6 +226,12 @@
         "title": "java.net.http",
         "link": "https://openjdk.java.net/groups/net/httpclient/intro.html",
         "description": "Java Standardized HTTP Client API"
+      },
+      {
+        "key": "restclient",
+        "title": "Spring RestClient",
+        "link": "https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/client/RestClient.html",
+        "description": "Spring Framework REST client"
       }
     ]
   },

test/fixtures/output/java/restclient/application-form-encoded.java

@@ -0,0 +1,10 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.POST)
+  .uri("http://mockbin.com/har")
+  .header("content-type", "application/x-www-form-urlencoded")
+  .contentType(MediaType.APPLICATION_FORM_URLENCODED)
+  .body("foo=bar&hello=world")
+  .retrieve()
+  .toEntity(String.class);

test/fixtures/output/java/restclient/application-json.java

@@ -0,0 +1,10 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.POST)
+  .uri("http://mockbin.com/har")
+  .header("content-type", "application/json")
+  .contentType(MediaType.APPLICATION_JSON)
+  .body("{\"number\":1,\"string\":\"f\\\"oo\",\"arr\":[1,2,3],\"nested\":{\"a\":\"b\"},\"arr_mix\":[1,\"a\",{\"arr_mix_nested\":{}}],\"boolean\":false}")
+  .retrieve()
+  .toEntity(String.class);

test/fixtures/output/java/restclient/compression.java

@@ -0,0 +1,8 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.GET)
+  .uri("http://mockbin.com/har")
+  .header("accept-encoding", "deflate, gzip, br")
+  .retrieve()
+  .toEntity(String.class);

test/fixtures/output/java/restclient/cookies.java

@@ -0,0 +1,9 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.POST)
+  .uri("http://mockbin.com/har")
+  .cookie("foo", "bar")
+  .cookie("bar", "baz")
+  .retrieve()
+  .toEntity(String.class);

test/fixtures/output/java/restclient/custom-method.java

@@ -0,0 +1,7 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.valueOf("PROPFIND"))
+  .uri("http://mockbin.com/har")
+  .retrieve()
+  .toEntity(String.class);

test/fixtures/output/java/restclient/full.java

@@ -0,0 +1,13 @@
+RestClient restClient = RestClient.create();
+
+ResponseEntity<String> response = restClient
+  .method(HttpMethod.POST)
+  .uri("http://mockbin.com/har?foo=bar&foo=baz&baz=abc&key=value")
+  .cookie("foo", "bar")
+  .cookie("bar", "baz")
+  .header("accept", "application/json")
+  .header("content-type", "application/x-www-form-urlencoded")
+  .contentType(MediaType.APPLICATION_FORM_URLENCODED)
+  .body("foo=bar")
+  .retrieve()
+  .toEntity(String.class);