# google-http-java-client

**Repository Path**: HarmonyOS-tpc/google-http-java-client

## Basic Information

- **Project Name**: google-http-java-client
- **Description**: Google HTTP Client Library for Java
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-04-01
- **Last Updated**: 2023-04-17

## Categories & Tags

**Categories**: harmonyos-network

**Tags**: None

## README

## Google HTTP Client Library for Java

## Introduction
Written by Google, the Google HTTP Client Library for Java is a flexible, efficient, and powerful
Java library for accessing any resource on the web via HTTP. The library has the following

### features:

- Pluggable HTTP transport abstraction that allows you to use any low-level library such as java.net.HttpURLConnection, Apache HTTP Client, or URL Fetch on Google App Engine.
- Efficient JSON and XML data models for parsing and serialization of HTTP response and request content. The JSON and XML libraries are also fully pluggable, and they include support for [Jackson](https://github.com/FasterXML/jackson) and openharmony's GSON libraries for JSON.


The library supports the following Java environments:
   - Java 7 or higher
   - GoogleAppEngine Google App Engine


The following related projects are built on the Google HTTP Client Library for Java:
   - [Google OAuth Client Library for Java][google-oauth-client], for the OAuth 2.0 and OAuth 1.0a authorization standards.
   - [Google APIs Client Library for Java][google-api-client], for access to Google APIs.

## Usage Instructions
a)	Configure HTTP Transport Protocol and Json Parsor/XML parser 
```
static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
static final JsonFactory JSON_FACTORY = new HarmonyJsonFactory();
```
b)	Create Java class with “@Key” annotation, mentioning key values

```
/** Represents a video feed. */
public static class VideoFeed {
    @Key public List<Video> list;

    @Key("has_more")
    public boolean has_more;
}

/** Represents a video. */
public static class Video {
    @Key public String id;
    @Key public String title;
    @Key public String channel;
    @Key public String owner;
}
```
c)	Extend GenericUtil class
``
public static class DailyMotionUrl extends GenericUrl {}
``

d)	HIT below api to read response and parse.
```
HttpRequest request = requestFactory.buildGetRequest(url);
VideoFeed videoFeed = request.execute().parseAs(VideoFeed.class);
```

## Installation Instructions
```
Method 1: Generate har package from library and add it to lib folder.
       add following code to gradle of entry
    
       implementation fileTree(dir: 'libs', include: ['*.jar', '*.har'])

Method 2: Google http java client with optional pluggables
    allprojects{ 
        repositories{ 
            mavenCentral() 
        } 
    }
    implementation "io.openharmony.tpc.thirdlib:google_http_client:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_harmony:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_jackson2:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_xml:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_protobuf:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_appengine:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_gson:1.0.0"
    implementation "io.openharmony.tpc.thirdlib:google_http_client_apache_v2:1.0.0"
```

for further pluggable configs read below documentations.

## Documentation

- [Developer's Guide](https://googleapis.github.io/google-http-java-client/)
- [Setup Instructions](https://googleapis.github.io/google-http-java-client/setup.html)
- [JavaDoc](https://googleapis.dev/java/google-http-client/latest/)