Tips Microservice

This is a user tips microservice from Pip.Services library.
It shows useful tips to users that help them use application more effectively.
Each tip:
- Can be written in multiple languages
- Can include pictures and document attachments
- Supports editing lifecycle via status tracking

The microservice currently supports the following deployment options:
* Deployment platforms: Standalone Process
* External APIs: HTTP/REST, AWS Lambda
* Persistence: In-Memory, Flat Files, MongoDB

This microservice has dependencies on the following microservices:
- pip-services-attachments - to reference pictures and documents associates with tips

Quick Links:

* Download Links
* Development Guide
* Configuration Guide
* Deployment Guide
* Client SDKs
- Node.js SDK
* Communication Protocols
- HTTP Version 1

Contract

Logical contract of the microservice is presented below. For physical implementation (HTTP/REST, Thrift, Lambda, etc.),
please, refer to documentation of the specific protocol.

``typescript
class TipV1 implements IStringIdentifiable {
/ Identification /
public id: string;
public topics: string[];

/ Automatically managed fields /
public creator: PartyReferenceV1;
public create_time: Date;

/ Content /
public title?: MultiString;
public content?: MultiString;
public more_url?: string;
public pics?: AttachmentV1[];
public docs?: AttachmentV1[];

/ Search /
public tags?: string[];
public all_tags?: string[];

/ Status /
public status?: string;

/ Custom fields /
public custom_hdr?: any;
public custom_dat?: any;
}

class AttachmentV1 {
public id?: string;
public uri?: string;
public name?: string;
}

class PartyReferenceV1 {
public id: string;
public name?: string;
public email?: string;
}

class TipStatusV1 {
public static readonly New = "new";
public static readonly Writing = "writing";
public static readonly Translating = "translating";
public static readonly Verifying = "verifying";
public static readonly Completed = "completed";
}

interface ITipsV1 {
getTips(correlationId: string, filter: FilterParams, paging: PagingParams): Promise>;

getRandomTip(correlationId: string, filter: FilterParams): Promise;

getTipById(correlationId: string, tipId: string): Promise;

createTip(correlationId: string, tip: TipV1): Promise;

updateTip(correlationId: string, tip: TipV1): Promise;

deleteTipById(correlationId: string, tipId: string): Promise;
}
`

Download

Right now the only way to get the microservice is to check it out directly from github repository
`bash
git clone git@github.com:pip-services-content2/service-tips-node.git
`

Pip.Service team is working to implement packaging and make stable releases available for your
as zip downloadable archieves.

Run

Add config.yaml file to the root of the microservice folder and set configuration parameters.
As the starting point you can use example configuration from config.example.yaml file.

Example of microservice configuration
`yaml
---
- descriptor: "pip-services:logger:console:default:1.0"
level: "trace"

- descriptor: "service-tips:persistence:file:default:1.0"
path: "./data/tips.json"

- descriptor: "service-tips:controller:default:default:1.0"

- descriptor: "pip-services-attachments:client:http:default:1.0"
connection:
protocol: "http"
host: "0.0.0.0"
port: 8082

- descriptor: "service-tips:service:http:default:1.0"
connection:
protocol: "http"
host: "0.0.0.0"
port: 8080
`

For more information on the microservice configuration see Configuration Guide.

Start the microservice using the command:
`bash
node run
`

Use

The easiest way to work with the microservice is to use client SDK.
The complete list of available client SDKs for different languages is listed in the Quick Links

If you use Node.js then you should add dependency to the client SDK into package.json file of your project
`javascript
{
...
"dependencies": {
....
"client-tips-node": "^1.0.*",
...
}
}
`

Inside your code get the reference to the client SDK
`javascript
let sdk = new require('client-tips-node');
`

Define client configuration parameters that match configuration of the microservice external API
`javascript
// Client configuration
let config = {
connection: {
protocol: 'http',
host: 'localhost',
port: 8080
}
};
`

Instantiate the client and open connection to the microservice
`javascript
// Create the client instance
let client = sdk.TipsHttpClientV1(config);

// Connect to the microservice
try {
await client.open(null);
// Work with the microservice
...
} catch(err) {
console.error('Connection to the microservice failed');
console.error(err);
}
`

Now the client is ready to perform operations
`javascript
// Create a new tip
let tip = await client.createTip(
null,
{
topics: ['ui'],
title: { en: 'Context help' },
content: { en: 'Press Ctrl-F1 to get context help' }
}
);
`

`javascript
// Get a random tip
let tip = await client.getRandomTip(
null,
{}
);
``

Acknowledgements

This microservice was created and currently maintained by Sergey Seroukhov.