Implemented permanent delete user by params endpoint

Author: tr90814

README.md

@@ -148,11 +148,22 @@ client.users.archive({ id: '1234' }, callback);
 ```
 
 ```node
-// Permanently delete a user user by id (https://developers.intercom.com/v2.0/reference#delete-users)
+// Permanently delete a user by id (https://developers.intercom.com/v2.0/reference#delete-users)
 const intercomUserId = '123'
 client.users.requestPermanentDeletion(intercomUserId, callback);
 ```
 
+```node
+// Permanently delete a user by id in params
+client.users.requestPermanentDeletionByParams({ id: '55b9eaf' }, callback);
+
+// Permanently delete a user by user_id
+client.users.requestPermanentDeletionByParams({ user_id: 'foobar' }, callback);
+
+// Permanently delete a user by email
+client.users.requestPermanentDeletionByParams({ email: '[email protected]' }, callback);
+```
+
 ## Leads
 
 ```node

lib/user.js

@@ -46,4 +46,25 @@ export default class User {
   requestPermanentDeletion(intercom_user_id, f) {
     return this.client.post('/user_delete_requests', { intercom_user_id }, f);
   }
+  requestPermanentDeletionByParams(params, f) {
+    if (params.id) {
+      return this.requestPermanentDeletion(params.id, f);
+    }
+
+    return this.find(params)
+      .then((res) => this.requestPermanentDeletion(res.body.id))
+      .then((res) => {
+        if (f) {
+          return f(null, res);
+        }
+
+        return res;
+      }).catch((err) => {
+        if (f) {
+          return f(err);
+        }
+
+        throw err;
+      });
+  }
 }

test/user.js

@@ -116,4 +116,65 @@ describe('users', () => {
       done();
     });
   });
+  it('should permanently delete users by Intercom user ID in params', (done) => {
+    nock('https://api.intercom.io')
+      .post('/user_delete_requests', { intercom_user_id: 'foo' })
+      .reply(200, { id: 10 });
+    const client = new Client('foo', 'bar').usePromises();
+    client.users.requestPermanentDeletionByParams({id: 'foo'}).then((r) => {
+      assert.equal(200, r.statusCode);
+      assert.deepStrictEqual({ id: 10 }, r.body);
+      done();
+    });
+  });
+  it('should permanently delete users by user_id', (done) => {
+    nock('https://api.intercom.io')
+      .get('/users')
+      .query({ user_id: 'foo' })
+      .reply(200, { id: 10 })
+      .post('/user_delete_requests', { intercom_user_id: 10 })
+      .reply(200, { id: 10 });
+    const client = new Client('foo', 'bar').usePromises();
+    client.users.requestPermanentDeletionByParams({user_id: 'foo'}).then((r) => {
+      assert.equal(200, r.statusCode);
+      assert.deepStrictEqual({ id: 10 }, r.body);
+      done();
+    });
+  });
+  it('should permanently delete users by email', (done) => {
+    nock('https://api.intercom.io')
+      .get('/users')
+      .query({ email: 'foo' })
+      .reply(200, { id: 10 })
+      .post('/user_delete_requests', { intercom_user_id: 10 })
+      .reply(200, { id: 10 });
+    const client = new Client('foo', 'bar').usePromises();
+    client.users.requestPermanentDeletionByParams({email: 'foo'}).then((r) => {
+      assert.equal(200, r.statusCode);
+      assert.deepStrictEqual({ id: 10 }, r.body);
+      done();
+    });
+  });
+  it('should callback with errors if calls fail', (done) => {
+    nock('https://api.intercom.io')
+      .get('/users')
+      .query({ email: 'foo' })
+      .reply(200, {type: 'error.list'});
+    const client = new Client('foo', 'bar');
+    client.users.requestPermanentDeletionByParams({email: 'foo'}, (err) => {
+      assert.equal(true, err instanceof Error);
+      done();
+    });
+  });
+  it('should reject promises if calls fail', (done) => {
+    nock('https://api.intercom.io')
+      .get('/users')
+      .query({ email: 'foo' })
+      .reply(200, {type: 'error.list'});
+    const client = new Client('foo', 'bar').usePromises();
+    client.users.requestPermanentDeletionByParams({email: 'foo'}).catch(err => {
+      assert.equal(true, err instanceof Error);
+      done();
+    });
+  });
 });