Remove response handler

package.json

@@ -22,25 +22,26 @@
     "node": ">=10"
   },
   "dependencies": {
-    "query-string": "^6.11.1"
+    "merge": "^1.2.1",
+    "query-string": "^6.13.3"
   },
   "devDependencies": {
     "@types/body-parser": "^1.19.0",
     "@types/connect": "^3.4.33",
-    "@types/jest": "^26.0.10",
+    "@types/jest": "^26.0.14",
     "@types/node-fetch": "^2.5.5",
     "@types/query-string": "^6.3.0",
     "body-parser": "^1.19.0",
     "connect": "^3.7.0",
     "coveralls": "^3.0.9",
     "fetch-mock": "^9.10.7",
     "http-shutdown": "^1.2.2",
-    "husky": "^4.2.3",
+    "husky": "^4.3.0",
     "nock": "^13.0.4",
-    "node-fetch": "^2.6.0",
-    "np": "^6.2.2",
+    "node-fetch": "^2.6.1",
+    "np": "^6.5.0",
     "rollup-plugin-filesize": "^6.2.1",
-    "tsdx": "^0.13.0",
+    "tsdx": "^0.13.3",
     "tslib": "^2.0.0",
     "typescript": "^3.8.3"
   },

src/error.ts

@@ -0,0 +1,16 @@
+// https://reddit.com/r/typescript/comments/9u9107/extends_error_not_working/e92juau/?utm_source=reddit&utm_medium=web2x&context=3
+// https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work
+export class TraeError extends Error {
+  __proto__ = Error;
+
+  public statusText?: string;
+  public status?: number;
+
+  constructor(statusText: string, status: number) {
+    super(statusText);
+    this.statusText = statusText;
+    this.status = status;
+
+    Object.setPrototypeOf(this, TraeError.prototype);
+  }
+}

src/index.ts

@@ -1,3 +1,105 @@
-import createTrae from './trae';
+// @ts-nocheck
 
-export default createTrae;
+import { format as formatUrl } from './url';
+import { TraeSettings, TraeResponse } from './types';
+// import { merge } from './utils';
+import { TraeError } from './error';
+import merge from 'merge';
+
+function createTrae(providedConfig: Partial<TraeSettings> = {}) {
+  // TODO: Implement Object.freeze with TS
+  const defaults: TraeSettings = {
+    before: (conf: RequestInit) => conf,
+    after: (res: any) => res,
+    headers: {},
+    ...providedConfig,
+  };
+
+  // TODO: Fix TS
+  if (providedConfig.json) {
+    defaults.headers['Content-Type'] = 'application/json';
+  }
+
+  async function request(endpoint: string, settings: TraeSettings) {
+    // TODO: We should extract some attributes to avoid exposing unnecessary
+    //       data to the before middleware and fetch function.
+    //       Example: 'middleware' attribute.
+
+    const url = formatUrl(settings.url, endpoint, settings.params);
+    const options = defaults.before(settings);
+    const res: TraeResponse = await fetch(url, options);
+
+    if (!res.ok) {
+      throw new TraeError(res.statusText, res.status);
+    }
+
+    if (settings.json) {
+      res.data = await res.json();
+    }
+
+    return defaults.after(res, settings);
+  }
+
+  function create(instanceConfig: Partial<TraeSettings>) {
+    return createTrae(merge({}, defaults, instanceConfig));
+  }
+
+  function get(endpoint: string, requestConfig?: RequestInit) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, { ...settings, method: 'GET' });
+  }
+
+  function remove(endpoint: string, requestConfig?: RequestInit) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, { ...settings, method: 'DELETE' });
+  }
+
+  function head(endpoint: string, requestConfig?: RequestInit) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, { ...settings, method: 'HEAD' });
+  }
+
+  function post(endpoint: string, body: BodyInit, requestConfig?: RequestInit) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, {
+      ...settings,
+      method: 'POST',
+      body: settings.json ? JSON.stringify(body) : body,
+    });
+  }
+
+  function put(endpoint: string, body: BodyInit, requestConfig?: RequestInit) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, {
+      ...settings,
+      method: 'PUT',
+      body: settings.json ? JSON.stringify(body) : body,
+    });
+  }
+
+  function patch(
+    endpoint: string,
+    body: BodyInit,
+    requestConfig?: RequestInit,
+  ) {
+    const settings: TraeSettings = merge(defaults, requestConfig);
+    return request(endpoint, {
+      ...settings,
+      method: 'PATCH',
+      body: settings.json ? JSON.stringify(body) : body,
+    });
+  }
+
+  return {
+    create,
+    get,
+    delete: remove,
+    head,
+    post,
+    put,
+    patch,
+    config: defaults,
+  };
+}
+
+export default createTrae();