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\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
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\usepackage{amsmath}            % Symbols
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%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Nathan (Nathane2005)}
\pdfinfo{
  /Title (angular-2-http.pdf)
  /Creator (Cheatography)
  /Author (Nathan (Nathane2005))
  /Subject (Angular 2 Http Cheat Sheet)
}

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\fancyhead{} % Set header to blank
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Angular 2 Http Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Nathan (Nathane2005)} via \textcolor{DarkBackground}{\uline{cheatography.com/28056/cs/8480/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Nathan (Nathane2005) \\
  \uline{cheatography.com/nathane2005} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 17th October, 2016.\\
   Updated 17th October, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
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% www.emerson.emory.edu/services/latex/latex_169.html
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\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Starting Up}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{@NgModule(\{ \newline      declarations: {[}{]}, \newline      imports: {[}HttpModule{]}, \newline      bootstrap: {[}{]}, \newline      providers: {[}{]} \newline \})} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Using Angular HTTP}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{constructor(private http: Http) \{\}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.74655 cm} x{4.23045 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Http Verbs}}  \tn
% Row 0
\SetRowColor{LightBackground}
GET & get(url: string, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with get http method. \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
POST & post(url: string, body: any, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with post http method. \tn 
% Row Count 8 (+ 4)
% Row 2
\SetRowColor{LightBackground}
PUT & put(url: string, body: any, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with put http method. \tn 
% Row Count 12 (+ 4)
% Row 3
\SetRowColor{white}
\seqsplit{DELETE} & delete(url: string, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with delete http method. \tn 
% Row Count 16 (+ 4)
% Row 4
\SetRowColor{LightBackground}
PATCH & patch(url: string, body: any, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with patch http method. \tn 
% Row Count 20 (+ 4)
% Row 5
\SetRowColor{white}
HEAD & head(url: string, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with head http method. \tn 
% Row Count 24 (+ 4)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{OPTIONS} & options(url: string, options?: RequestOptionsArgs) : Observable\textless{}Response\textgreater{} Performs a request with options http method. \tn 
% Row Count 28 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{RequestOptionsArgs}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{interface RequestOptionsArgs \{ \newline   url : string \newline   method : string|RequestMethod \newline   search : string|URLSearchParams \newline   headers : Headers \newline   body : any \newline   withCredentials : boolean \newline   responseType : ResponseContentType \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Headers}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{class Headers \{ \newline   \seqsplit{staticfromResponseHeaderString(headersString:} string) : Headers \newline   constructor(headers?: Headers|\{{[}name: string{]}: any\}) \newline   append(name: string, value: string) : void \newline   delete(name: string) : void \newline   forEach(fn: (values: string{[}{]}, name: string, headers: Map\textless{}string, string{[}{]}\textgreater{}) =\textgreater{} void) : void \newline   get(name: string) : string \newline   has(name: string) : boolean \newline   keys() : string{[}{]} \newline   set(name: string, value: string|string{[}{]}) : void \newline   values() : string{[}{]}{[}{]} \newline   toJSON() : \{{[}name: string{]}: any\} \newline   getAll(name: string) : string{[}{]} \newline   entries() \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Observables - Flow}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{p{5.377cm}}{\vspace{1px}\centerline{\includegraphics[width=5.1cm]{/web/www.cheatography.com/public/uploads/nathane2005_1476726257_ObservableHttp.jpg}}} \tn 
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Sample Delegate}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{import \{ Injectable \} from '@angular/core'; \newline import \{Http, Response, Headers, RequestOptions\} from "@angular/http"; \newline import 'rxjs/Rx'; \newline import \{Observable\} from "rxjs"; \newline import \{Post\} from "./http/post.class"; \newline  \newline  \newline @Injectable() \newline export class HttpService \{ \newline  \newline   constructor(private http: Http) \{ \} \newline  \newline   private requestUrl: string = \seqsplit{'http://localhost:4000/posts';} \newline  \newline   //Do all methods and observable options \newline  \newline   getData(id : number) : Observable\textless{}Post\textgreater{} \{ \newline     return this.http.get(`\$\{this.requestUrl\}/\$\{id\}`) \newline       .map(this.mapResponse) \newline       .catch(this.handleError) \newline   \} \newline  \newline   handleError(error: any): Observable\textless{}any\textgreater{} \{ \newline     console.error('An error occurred', error); \newline     return \seqsplit{Observable.throw(error.json()} || 'Server error'); \newline   \} \newline  \newline   mapResponse(response : Response) : Post \{ \newline     return response.json(); \newline   \} \newline  \newline   addData(body : Post) : Observable\textless{}Post\textgreater{} \{ \newline     let bodyString = JSON.stringify(body); \newline     let header = new Headers(\{ \newline       'Content-Type' : 'application/json' \newline     \}); \newline     let options = new RequestOptions(\{ \newline       headers : header \newline     \}); \newline  \newline     return this.http.post(`\$\{this.requestUrl\}`, bodyString, options) \newline       .map(this.mapResponse) \newline       \seqsplit{.catch(this.handleError);} \newline   \} \newline  \newline   updateData(body : Post) : Observable\textless{}Post\textgreater{} \{ \newline     let bodyString = JSON.stringify(body); \newline     let header = new Headers(\{ \newline       'Content-Type' : 'application/json' \newline     \}); \newline     let options = new RequestOptions(\{ \newline       headers : header \newline     \}); \newline  \newline     return this.http.put(`\$\{this.requestUrl\}/\$\{body.id\}`, bodyString, options) \newline       .map(this.mapResponse) \newline       \seqsplit{.catch(this.handleError);} \newline   \} \newline  \newline   deleteData(body : Post) : Observable\textless{}Post\textgreater{} \{ \newline     return this.http.delete(`\$\{this.requestUrl\}/\$\{body.id\}`) \newline       .map(this.mapResponse) \newline       \seqsplit{.catch(this.handleError);} \newline   \} \newline  \newline \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Rx - Map}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{getData(id : number) : Observable\textless{}Post\textgreater{} \{ \newline     return this.http.get(`\$\{this.requestUrl\}/\$\{id\}`) \newline       .map(this.mapResponse) \newline       .catch(this.handleError) \newline   \} \newline  \newline  \newline   mapResponse(response : Response) : Post \{ \newline     return response.json(); \newline   \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{The map() function takes in a lambda function or a reference to a function that will execute the procedure and return the mapped result.  \newline Accepts (res : Respone) and returns a result.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Rx - catch}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{getData(id : number) : Observable\textless{}Post\textgreater{} \{ \newline     return this.http.get(`\$\{this.requestUrl\}/\$\{id\}`) \newline       .map(this.mapResponse) \newline       .catch(this.handleError) \newline   \} \newline  \newline   handleError(error: any): Observable\textless{}any\textgreater{} \{ \newline     console.error('An error occurred', error); \newline     return \seqsplit{Observable.throw(error.json()} || 'Server error'); \newline   \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{The catch reference is there to handle exceptions that are thrown. This gives you an opportunity to handle them in a graceful manner.  \newline All rx operations return an observable.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Observable - Subscribe}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{observerOrNext} & PartialObserver\textless{}T\textgreater{} | ((value: T) =\textgreater{} void) \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
error & (error: any) =\textgreater{} void \tn 
% Row Count 3 (+ 1)
% Row 2
\SetRowColor{LightBackground}
complete & () =\textgreater{} void \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{5.377cm}}{\seqsplit{this.service.getData(10).subscribe(} \newline       (data : Post) =\textgreater{} \{ \newline         this.result = data; \newline       \}, \newline       (error : any) =\textgreater{} \{ \newline         console.error(error); \newline       \} \newline     )}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{Reference}}  \tn
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{private requestUrl: string = \seqsplit{'http://localhost:4000/posts';} \newline  \newline   getData(id : number) : Observable\textless{}Post\textgreater{} \{ \newline     return this.http.get(`\$\{this.requestUrl\}/\$\{id\}`) \newline       .map(this.mapResponse) \newline       .catch(this.handleError) \newline   \}} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{5.377cm}}{Using the back ticks to specify internal references `` \newline referencing the content in \$\{\}}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}