return json objects rather than json strings

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@dnspect/dns-ts",
-    "version": "0.2.0",
+    "version": "0.2.1",
     "description": "DNS library in TypeScript",
     "author": "Minghang Chen <[email protected]> (https://minghang.dev)",
     "license": "MIT",

src/question.test.ts

@@ -6,11 +6,11 @@ import { Class, RRType } from "./types";
 describe("test stringify", () => {
     const q = new Question(FQDN.parse('example.com'), RRType.A, Class.IN);
 
-    it("should get dig-like", () => {
+    it("should get dig-like text", () => {
         expect(q.toString()).to.be.equal(';example.com.\t\tIN\tA');
     });
 
-    it("should get dns-json", () => {
-        expect(q.toJSON()).to.be.equal('{"name": "example.com.", "type": 1}');
+    it("should get dns-json object", () => {
+        expect(JSON.stringify(q.toJsonObject())).to.be.equal(JSON.stringify({ "name": "example.com.", "type": 1 }));
     });
 });

src/question.ts

@@ -65,12 +65,15 @@ export class Question {
     }
 
     /**
-     * Generates textual representation in dns-json format.
+     * Returns JSON object of the question that will generate textual in application/dns-json format.
      *
      * @returns
      */
-    toJSON(): string {
-        return `{"name": "${this.qname.toString()}", "type": ${this.qclass}}`;
+    toJsonObject(): object {
+        return {
+            "name": this.qname.toString(),
+            "type": this.qclass,
+        };
     }
 
     pack(buf: Writer): number {

src/records/txt.test.ts

@@ -8,11 +8,16 @@ describe("test stringify", () => {
     const txt = new TXT(new Header('example.com', RRType.TXT, Class.IN, 300));
     txt.content = [new CharacterString('abc'), new CharacterString('d "hi" e')];
 
-    it("should generate dns-json", () => {
-        expect(txt.toJSON()).to.be.equal(`{"name": "example.com.", "type": 16, "TTL": 300, "data": "\\"abc\\" \\"d \\"hi\\" e\\""}`);
+    it("should generate dns-json object", () => {
+        expect(JSON.stringify(txt.toJsonObject())).to.be.equal(JSON.stringify({
+            "name": "example.com.",
+            "type": 16,
+            "TTL": 300,
+            "data": "\"abc\" \"d \"hi\" e\"",
+        }));
     });
 
-    it("should generate dig-like", () => {
+    it("should generate dig-like text", () => {
         expect(txt.toString()).to.be.equal('example.com.\t\t300\tIN\tTXT\t"abc" "d "hi" e"');
     });
 });

src/rr.ts

@@ -164,10 +164,15 @@ export abstract class RR {
     }
 
     /**
-     * Returns texual representation of the RR in application/dns-json format.
+     * Returns JSON object of the RR that will generate textual in application/dns-json format.
      */
-    toJSON(): string {
-        return `{"name": "${this.header.name}", "type": ${this.header.type}, "TTL": ${this.header.ttl}, "data": ${JSON.stringify(this.dataString())}}`;
+    toJsonObject(): object {
+        return {
+            "name": this.header.name.toString(),
+            "type": this.header.type,
+            "TTL": this.header.ttl,
+            "data": this.dataString(),
+        };
     }
 }