Generate Crystal language code (Kong#343)

* Generate Crystal language code

* Generate Crystal language code

* Remove a blank line

* fix crystal tests

---------

Co-authored-by: Filipe Freire <livrofubia@gmail.com>

Author: yanecc

README.md

@@ -2,7 +2,7 @@
 
 [![version][npm-version]][npm-url] [![License][npm-license]][license-url]
 
-> HTTP Request snippet generator for _many_ languages & tools including: `cURL`, `HTTPie`, `JavaScript`, `Node`, `C`, `Java`, `PHP`, `Objective-C`, `Swift`, `Python`, `Ruby`, `C#`, `Go`, `OCaml` and [more](https://github.com/Kong/httpsnippet/wiki/Targets)!
+> HTTP Request snippet generator for _many_ languages & tools including: `cURL`, `HTTPie`, `JavaScript`, `Node`, `C`, `Java`, `PHP`, `Objective-C`, `Swift`, `Python`, `Ruby`, `C#`, `Go`, `OCaml`, `Crystal` and [more](https://github.com/Kong/httpsnippet/wiki/Targets)!
 
 Relies on the popular [HAR](http://www.softwareishard.com/blog/har-12-spec/#request) format to import data and describe HTTP calls.
 

package.json

@@ -11,6 +11,7 @@
   "keywords": [
     "api",
     "clojure",
+    "crystal",
     "csharp",
     "curl",
     "go",

src/helpers/__snapshots__/utils.test.ts.snap

@@ -30,6 +30,20 @@ Array [
     "key": "clojure",
     "title": "Clojure",
   },
+  Object {
+    "clients": Array [
+      Object {
+        "description": "Crystal HTTP client",
+        "key": "native",
+        "link": "https://crystal-lang.org/api/master/HTTP/Client.html",
+        "title": "http::client",
+      },
+    ],
+    "default": "native",
+    "extname": ".cr",
+    "key": "crystal",
+    "title": "Crystal",
+  },
   Object {
     "clients": Array [
       Object {

src/targets/crystal/native/client.test.ts

@@ -0,0 +1,18 @@
+import https from '../../../fixtures/requests/https.json';
+import { runCustomFixtures } from '../../../fixtures/runCustomFixtures';
+import { Request } from '../../../httpsnippet';
+
+runCustomFixtures({
+  targetId: 'crystal',
+  clientId: 'native',
+  tests: [
+    {
+      it: 'should support the insecureSkipVerify option',
+      input: https as Request,
+      options: {
+        insecureSkipVerify: true,
+      },
+      expected: 'insecure-skip-verify.cr',
+    },
+  ],
+});

src/targets/crystal/native/client.ts

@@ -0,0 +1,72 @@
+/**
+ * @description
+ * HTTP code snippet generator for native Crystal
+ *
+ * @author
+ * @18183883296
+ *
+ * for any questions or issues regarding the generated code snippet, please open an issue mentioning the author.
+ */
+import { CodeBuilder } from '../../../helpers/code-builder';
+import { escapeForDoubleQuotes } from '../../../helpers/escape';
+import { Client } from '../../targets';
+
+export interface CrystalNativeOptions {
+  insecureSkipVerify?: boolean;
+}
+
+export const native: Client<CrystalNativeOptions> = {
+  info: {
+    key: 'native',
+    title: 'http::client',
+    link: 'https://crystal-lang.org/api/master/HTTP/Client.html',
+    description: 'Crystal HTTP client',
+  },
+  convert: ({ method: rawMethod, fullUrl, postData, allHeaders }, options = {}) => {
+    const { insecureSkipVerify = false } = options;
+
+    const { push, blank, join } = new CodeBuilder();
+
+    push('require "http/client"');
+
+    blank();
+
+    push(`url = "${fullUrl}"`);
+
+    const headers = Object.keys(allHeaders);
+    if (headers.length) {
+      push('headers = HTTP::Headers{');
+      headers.forEach(key => {
+        push(`  "${key}" => "${escapeForDoubleQuotes(allHeaders[key])}"`);
+      });
+      push('}');
+    }
+
+    if (postData.text) {
+      push(`reqBody = ${JSON.stringify(postData.text)}`);
+    }
+
+    blank();
+
+    const method = rawMethod.toUpperCase();
+    const methods = ['GET', 'POST', 'HEAD', 'DELETE', 'PATCH', 'PUT', 'OPTIONS'];
+
+    const headersContext = headers.length ? ', headers: headers' : '';
+    const bodyContext = postData.text ? ', body: reqBody' : '';
+    const sslContext = insecureSkipVerify ? ', tls: OpenSSL::SSL::Context::Client.insecure' : '';
+
+    if (methods.includes(method)) {
+      push(
+        `response = HTTP::Client.${method.toLowerCase()} url${headersContext}${bodyContext}${sslContext}`,
+      );
+    } else {
+      push(
+        `response = HTTP::Client.exec "${method}", url${headersContext}${bodyContext}${sslContext}`,
+      );
+    }
+
+    push('puts response.body');
+
+    return join();
+  },
+};

src/targets/crystal/native/fixtures/application-form-encoded.cr

@@ -0,0 +1,10 @@
+require "http/client"
+
+url = "http://mockbin.com/har"
+headers = HTTP::Headers{
+  "content-type" => "application/x-www-form-urlencoded"
+}
+reqBody = "foo=bar&hello=world"
+
+response = HTTP::Client.post url, headers: headers, body: reqBody
+puts response.body

src/targets/crystal/native/fixtures/application-json.cr

@@ -0,0 +1,10 @@
+require "http/client"
+
+url = "http://mockbin.com/har"
+headers = HTTP::Headers{
+  "content-type" => "application/json"
+}
+reqBody = "{\"number\":1,\"string\":\"f\\\"oo\",\"arr\":[1,2,3],\"nested\":{\"a\":\"b\"},\"arr_mix\":[1,\"a\",{\"arr_mix_nested\":{}}],\"boolean\":false}"
+
+response = HTTP::Client.post url, headers: headers, body: reqBody
+puts response.body

src/targets/crystal/native/fixtures/cookies.cr

@@ -0,0 +1,9 @@
+require "http/client"
+
+url = "http://mockbin.com/har"
+headers = HTTP::Headers{
+  "cookie" => "foo=bar; bar=baz"
+}
+
+response = HTTP::Client.post url, headers: headers
+puts response.body

src/targets/crystal/native/fixtures/custom-method.cr

@@ -0,0 +1,6 @@
+require "http/client"
+
+url = "http://mockbin.com/har"
+
+response = HTTP::Client.exec "PROPFIND", url
+puts response.body

src/targets/crystal/native/fixtures/full.cr

@@ -0,0 +1,12 @@
+require "http/client"
+
+url = "http://mockbin.com/har?foo=bar&foo=baz&baz=abc&key=value"
+headers = HTTP::Headers{
+  "cookie" => "foo=bar; bar=baz"
+  "accept" => "application/json"
+  "content-type" => "application/x-www-form-urlencoded"
+}
+reqBody = "foo=bar"
+
+response = HTTP::Client.post url, headers: headers, body: reqBody
+puts response.body