Retrofit Two Recap @punchdruneker

• engineer at mixi, Inc • sidelines • DroidKaigi • teaching at schoo • Shibuya.apk • and so on… @punchdrunker

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Retrofit 2 beta released!

Retrofit 2 way public interface GitHub { @GET("/repos/{owner}/{repo}/contributors") Call> contributors( @Path("owner") Owner owner, @Path("repo") String repo); @GET Call> contributorsPaginate( @Url String url); } Parameter Type Dynamic Url

Setup Retrofit retrofit = new Retrofit.Builder() .baseUrl(API_URL) .addConverterFactory(GsonConverterFactory.create()) .build(); GitHub github = retrofit.create(GitHub.class); Owner square = new Owner(“square"); Call> call = github.contributors(square, "retrofit"); Multiple Converter Call encapsulates single request/response interaction

Asynchronous execution call.enqueue(new Callback>() { @Override public void onResponse(Response> response) { // Log.d(response.headers().toString()); // Log.d(response.raw()); // => okhttp/Response List contributors = response.body(); for (Contributor contributor : contributors) { Log.d(contributor.login + " (" + contributor.contributions + ")"); } } ….

Asynchronous execution call.enqueue(new Callback>() { @Override public void onResponse(Response> response) { // Log.d(response.headers().toString()); // Log.d(response.raw()); // => okhttp/Response List contributors = response.body(); for (Contributor contributor : contributors) { Log.d(contributor.login + " (" + contributor.contributions + ")"); } } …. Parameterized Response Object

Call (Class) • Models a single request/response pair • Separates request creation from response handling • Each instance can only be used once... • ...instances can be cloned • Supports both synchronous and asynchronous execution. • Can be (actually) canceled

Multiple Converter // We can user multiple converters public interface AwesomeService { @GET("/awesome/proto/endpoint") Call awesomeProtoEndpoint(); @GET("/awesome/json/endpoint") Call awesomeJsonEndpoint(); } ————————————————————————————————————————————- Retrofit retrofitMulti = new Retrofit.Builder() .baseUrl(API_URL) .addConverterFactory(GsonConverterFactory.create()) .addConverterFactory(ProtoConverterFactory.create()) .build();

Multiple execution mechanism public interface GreatService { @GET("/repos/{owner}/{repo}/contributors") Call> repoContributors( @Path("owner") String owner, @Path("repo") String repo); @GET("/repos/{owner}/{repo}/contributors") Observable> repoContributors2( @Path("owner") String owner, @Path("repo") String repo); @GET("/repos/{owner}/{repo}/contributors") Future> repoContributors3( @Path("owner") String owner, @Path("repo") String repo); }

Multiple execution mechanism public interface GreatService { @GET("/repos/{owner}/{repo}/contributors") Call> repoContributors( @Path("owner") String owner, @Path("repo") String repo); @GET("/repos/{owner}/{repo}/contributors") Observable> repoContributors2( @Path("owner") String owner, @Path("repo") String repo); @GET("/repos/{owner}/{repo}/contributors") Future> repoContributors3( @Path("owner") String owner, @Path("repo") String repo); }

Pluggable execution mechanism Retrofit retrofit = new Retrofit.Builder() .baseUrl(API_URL) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .build();

Pluggable execution mechanism Retrofit retrofit = new Retrofit.Builder() .baseUrl(API_URL) .addConverterFactory(GsonConverterFactory.create()) .addCallAdapterFactory(RxJavaCallAdapterFactory.create()) .build();

Future • Parameter handlers • Logging? • Finalizing mock module • Documentation • WebSockets!(in v2.1)

more info • Simple HTTP with retrofit2 • https://www.youtube.com/watch? v=KIAoQbAu3eA • sample code • https://github.com/punchdrunker/ Retrofit2Sample

Thank you!