How Can I post Data(Json object) from Angular 2 to Web api?

app.component.ts

Step 1: Json Data

this.objsearch=[

{ "Key": "FirstName", "value": this.firstName },

{ "Key": "MiddleName", "value": this.middleName },

{ "Key": "fatherName ", "value": this.fatherName },

]

Method To call service Serice class:

this.ServiceObject.saveData(JSON.stringify(this.objsearch))

.subscribe(response => (this._param) = response);

}

Service.ts class

public _saveDataURL= 'http://localhost:53915/api/ComapnyAndProduct/DeleteItem';

saveData(objSearch: any)

{

return this._http.post(this._saveDataURL,objSearch)

.map((response: Response) => response.json());

}

Web api

[HttpPost]

public IHttpActionResult DeleteItem([FromUri]Mregistration objSearch)

{

return ok();

}