Passing client data from form to server

Hello there,

I have a HTML5 form with Angular 2 and I have a form that takes string and integer value and sends it to my Java backend server. But for some reason my integer value is being sent as string in the JSON which passes to the server. Below is the code. I will appreciate your help!

cheers
Zolf

<div class="form-group row">
                <label class="col-form-label col-md-4" for="fax">Fax <span class="required">*</span></label>
                  <div class="col-md-7">
                    <input class="form-control" 
                                    id="fax" 
                                    type="text"  
                                    formControlName="fax" />
                  </div>
              </div>

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this.companyForm.patchValue({
            name_en: this.companyProfile.name_en,
            address: this.companyProfile.address,
            fax: this.companyProfile.fax,
            email: this.companyProfile.email
        });

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saveCompanyProfile(): void {
        if (this.companyForm.dirty && this.companyForm.valid) {
            // Copy the form values over the CompanyProfile object values
            console.log("  ZZZZZZZZ    "+JSON.stringify(this.companyForm.value));
            let p = Object.assign({}, this.companyProfile, this.companyForm.value);

            this.companyService.saveCompanyProfile(p)
                .subscribe(
                    () => this.onCompanyProfileComplete(),
                    (error: any) => this.errorMessage = <any>error
                );
        } else if (!this.companyForm.dirty) {
            this.onCompanyProfileComplete();
        }
    }

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and my Service class that talks to the server looks like so,

private updateCompanyProfile(companyprofile: ICompanyProfile, options: RequestOptions): Observable<ICompanyProfile> {
        const url = `${this.referenceUrl}/${companyprofile.name_en}`;
        console.log('url: ' + url)
        console.log('updateCompanyProfile: ' + JSON.stringify(companyprofile))
        return this.http.put(url, companyprofile, options)
            .map(() => companyprofile)
            .do(data => console.log('update companyprofile: ' + JSON.stringify(data)))
            .catch(this.handleError);
    }

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