diff --git a/angular/src/app/services/data.service.spec.ts b/angular/src/app/services/data.service.spec.ts
new file mode 100644
index 0000000..97922aa
--- /dev/null
+++ b/angular/src/app/services/data.service.spec.ts
@@ -0,0 +1,15 @@
+import { TestBed, inject } from '@angular/core/testing';
+
+import { DataService } from './data.service';
+
+describe('DataService', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [DataService]
+    });
+  });
+
+  it('should be created', inject([DataService], (service: DataService) => {
+    expect(service).toBeTruthy();
+  }));
+});
diff --git a/angular/src/app/services/data.service.ts b/angular/src/app/services/data.service.ts
new file mode 100644
index 0000000..f6665a3
--- /dev/null
+++ b/angular/src/app/services/data.service.ts
@@ -0,0 +1,204 @@
+import {Injectable} from '@angular/core';
+import {HttpClient, HttpParams} from '@angular/common/http';
+import {Observable} from 'rxjs/Observable';
+
+@Injectable()
+export class DataService {
+
+  private rootURL = '/api/v1/data/';
+
+  constructor(private http: HttpClient) {
+  }
+
+  public list(p: DataParams): Observable<Data[]> {
+    let params = new HttpParams();
+    if (p.start !== undefined) {
+      params = params.append('start', p.start.toString());
+    }
+    if (p.limit !== undefined) {
+      params = params.append('limit', p.limit.toString());
+    }
+    if (p.sort !== undefined) {
+      params = params.append('sort', p.sort);
+    }
+
+    // string
+    if (p.nameQuery !== undefined) {
+      params = params.append('name', '1');
+      params = params.append('name.operation', p.nameQuery.operation);
+      params = params.append('name.query', p.nameQuery.query);
+      if (p.nameQuery.options !== undefined) {
+        params = params.append('name.options', p.nameQuery.options);
+      }
+    }
+
+    // string
+    if (p.addressQuery !== undefined) {
+      params = params.append('address', '1');
+      params = params.append('address.operation', p.addressQuery.operation);
+      params = params.append('address.query', p.addressQuery.query);
+      if (p.addressQuery.options !== undefined) {
+        params = params.append('address.options', p.addressQuery.options);
+      }
+    }
+
+    // string
+    if (p.locationQuery !== undefined) {
+      params = params.append('location', '1');
+      params = params.append('location.operation', p.locationQuery.operation);
+      params = params.append('location.query', p.locationQuery.query);
+      if (p.locationQuery.options !== undefined) {
+        params = params.append('location.options', p.locationQuery.options);
+      }
+    }
+
+    // number
+    if (p.ageQuery !== undefined) {
+      params = params.append('age', '1');
+      params = params.append('age.operation', p.ageQuery.operation);
+      if (p.ageQuery.from !== undefined) {
+        params = params.append('age.from', p.ageQuery.from.toString());
+      }
+      if (p.ageQuery.to !== undefined) {
+        params = params.append('age.to', p.ageQuery.to.toString());
+      }
+    }
+
+    // number
+    if (p.priceQuery !== undefined) {
+      params = params.append('price', '1');
+      params = params.append('price.operation', p.priceQuery.operation);
+      if (p.priceQuery.from !== undefined) {
+        params = params.append('price.from', p.priceQuery.from.toString());
+      }
+      if (p.priceQuery.to !== undefined) {
+        params = params.append('price.to', p.priceQuery.to.toString());
+      }
+    }
+
+    // bool
+    if (p.enabledQuery !== undefined) {
+      params = params.append('enabled', '1');
+      if (p.enabledQuery.query) {
+        params = params.append('enabled.query', 'true');
+      } else {
+        params = params.append('enabled.query', 'false');
+      }
+    }
+
+    return this.http.get<Data[]>(this.rootURL, {params: params});
+  }
+
+  public find(p: DataParams): Observable<Data> {
+    let params = new HttpParams();
+
+    // if
+    if (p.idQuery !== undefined) {
+      params = params.append('id', '1');
+      params = params.append('id.query', p.idQuery.query);
+    }
+
+    // string
+    if (p.nameQuery !== undefined) {
+      params = params.append('name', '1');
+      params = params.append('name.operation', p.nameQuery.operation);
+      params = params.append('name.query', p.nameQuery.query);
+      if (p.nameQuery.options !== undefined) {
+        params = params.append('name.options', p.nameQuery.options);
+      }
+    }
+
+    // string
+    if (p.addressQuery !== undefined) {
+      params = params.append('address', '1');
+      params = params.append('address.operation', p.addressQuery.operation);
+      params = params.append('address.query', p.addressQuery.query);
+      if (p.addressQuery.options !== undefined) {
+        params = params.append('address.options', p.addressQuery.options);
+      }
+    }
+
+    // string
+    if (p.locationQuery !== undefined) {
+      params = params.append('location', '1');
+      params = params.append('location.operation', p.locationQuery.operation);
+      params = params.append('location.query', p.locationQuery.query);
+      if (p.locationQuery.options !== undefined) {
+        params = params.append('location.options', p.locationQuery.options);
+      }
+    }
+
+    // number
+    if (p.ageQuery !== undefined) {
+      params = params.append('age', '1');
+      params = params.append('age.operation', p.ageQuery.operation);
+      if (p.ageQuery.from !== undefined) {
+        params = params.append('age.from', p.ageQuery.from.toString());
+      }
+      if (p.ageQuery.to !== undefined) {
+        params = params.append('age.to', p.ageQuery.to.toString());
+      }
+    }
+
+    // number
+    if (p.priceQuery !== undefined) {
+      params = params.append('price', '1');
+      params = params.append('price.operation', p.priceQuery.operation);
+      if (p.priceQuery.from !== undefined) {
+        params = params.append('price.from', p.priceQuery.from.toString());
+      }
+      if (p.priceQuery.to !== undefined) {
+        params = params.append('price.to', p.priceQuery.to.toString());
+      }
+    }
+
+    // bool
+    if (p.enabledQuery !== undefined) {
+      params = params.append('enabled', '1');
+      if (p.enabledQuery.query) {
+        params = params.append('enabled.query', 'true');
+      } else {
+        params = params.append('enabled.query', 'false');
+      }
+    }
+
+    return this.http.get<Data>(this.rootURL + '1', {params: params});
+  }
+
+  public create(m: Data) {
+    return this.http.post(this.rootURL, m);
+  }
+
+  public updateId(id: string, m: Data) {
+    return this.http.put(this.rootURL + id, m);
+  }
+
+  public removeId(id: string) {
+    return this.http.delete(this.rootURL + id);
+  }
+
+}
+
+export class DataParams {
+  start?: number;
+  limit?: number;
+  sort?: string;
+
+  idQuery?: { query: string };
+  nameQuery?: { operation: string, query: string, options?: string };
+  addressQuery?: { operation: string, query: string, options?: string };
+  locationQuery?: { operation: string, query: string, options?: string };
+  ageQuery?: { operation: string, from?: number, to?: number };
+  priceQuery?: { operation: string, from?: number, to?: number };
+  enabledQuery?: { query: boolean };
+}
+
+export class Data {
+  id: string;
+  name: string;
+  address: string;
+  location: string;
+  age?: number;
+  price?: number;
+  enabled: boolean;
+}