@dellasera/plugdo-server
plugdo server
Last updated a month ago by dellasera .
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plugdo-server

A module that implements plugdo-platform web software architecture. It help you focus in the implementation of integration oriented programming for: integration, data transformation, in-memory solutions and realtime solutions. The connectors includes: file system, MS sql server, MySql and Postgresql. (We will update the list as soon as we create more connectors)

Compatibility: Node.js version 6+ and Express version 4+

Install with npm:

npm install @dellasera/plugdo-server

Integrations

The integration core platform creates a global message in JSON format. The message is passed from the plugdo-server platform to the integration component implemented by you. An example:

plugdo.integration("get-customer", (message, send) => {

    send({});

});

This example shows the following details:

1- message: the message parameter is a global object that includes the following information in JSON format (the example is in XML format for better understanding).

<Integration>
    <url>
        <protocol>http</protocol>
        <path>api/get-customer/xml</path>
        <host>localhost:3000</host>
        <fullPath>http://localhost:3000/api/get-customer/xml</fullPath>
    </url>
    <node>api</node>
    <integration>get-customer</integration>
    <responseType>xml</responseType>
    <querystring/>
    <post/>
    <ip>127.0.0.1</ip>
    <header>
        <host>localhost:3000</host>
        <connection>keep-alive</connection>
        <upgrade-insecure-requests>1</upgrade-insecure-requests>
        <user-agent>
        Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36
        </user-agent>
        <accept>
        text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
        </accept>
        <accept-encoding>gzip, deflate, br</accept-encoding>
        <accept-language>en-US,en;q=0.9,es;q=0.8</accept-language>
        <cookie>io=Kli44tnwwnR7jIbJAAAB</cookie>
    </header>
    <device>
        <type>desktop</type>
        <name/>
    </device>
</Integration>

2- send: the send parameter is a function, it must be used to end a process of the integration implemented. You can pass the function throught the different callbacks, unless you execute it, the request will stay pending. Take care with the error handling logic, because if a try/catch is in place, you must execute the send({}, error) to exit the current request.

3- The "get-customer" is the name for the integration access point used in the URL.

The expected URL will be: http://domain.com/api/gwt-customer/xml

or http://domain.com/api/gwt-customer/json

the following example shows a complex logic with multiple collectors:

plugdo.integration("get-customer", (message, send) => {

    let response = {};

    // Collect from a file collector
    response.fromXML = plugdo.collect("customerFiles").get();

    // Collect from a sql server
    plugdo.collect("sqlserverGetBalanceByCustomerID").get(message, (data1, err) => {
        if(err !== undefined) {
            // End the current request if a error exists
            send({}, err);
        }
        else {
            response.Balance = data1;

            // Collect from sql server
            plugdo.collect("sqlserverGetGlobalInfo").get(message, (data2, err) => {
                if(err !== undefined) {
                    // End the current request if a error exists
                    send({}, err);
                }
                else {

                    // Collect from mysql server
                    response.GlobalInformation = data2;
                    plugdo.collect("mysqlGetAuditIntegrations").get(message, (data3, err) => {
                        if(err !== undefined) {
                            send({}, err);
                        }
                        else {
                            response.AuditIntegration = data3;
                
                            // End the current request
                            send(response);
                        }
                    });
               }
            });
        }
    });
});

Collectors

The collector logic reside in the plugdo-server core, you must configure and register the collector to be uswed for the integrations.

File Collector (Read)

plugdo.collector("customerFiles", {
    type: "file",
    action: "read",
    path: plugdo.PATH + "/source/plugdo/collector/customer.xml",
    json: false
});

This example shows the following details:

1- "customerFiles": is the name assigned by you to the collector, the name will be used in the integration in order to execute. 2- type: you define the current collector as a file system, database or any other available. 3- action: you define the current action of the collector for reading, the collector action define the behavior of its execution. 4- path: the path of the file to be read 5- json: if the file is not in JSON format, by default is true and you must change it.

Database Collector

Sql Server

plugdo.collector("sqlserverGetInfo", {
    type: "db",
    action: "sqlserver",
    server: {
        user: "synergy",
        password: "S7nerg7",
        server: "190.242.30.52",
        database: "ASIDb",
        port: 1433
    },
    queryType: "stored-procedure",
    query: "synergy.dbsp_GetInfo",
    parameter: []
});

Mysql

plugdo.collector("mysqlGetAuditIntegrationsByQuery", {
    type: "db",
    action: "mysql",
    server: {
        user: "loginName",
        password: "$loginName",
        host: "digitalprimeint.cpjwenmlj3sr.us-west-2.rds.amazonaws.com",
        database: "plugdo"
    },
    queryType: "text",
    query: "select * from audit_integrations",
    parameter: []
});

PostgreSQL

plugdo.collector("postgresqlGetUsers", {
    type: "db",
    action: "postgresql",
    server: {
        user: "loginName",
        password: "$loginName",
        host: "digitalprimeintps.cpjwenmlj3sr.us-west-2.rds.amazonaws.com",
        database: "plugdo",
        port: 5432
    },
    query: "select * from users",
    parameter: []
});

Passing parameters is simple as using the JSON reader format as follow:

plugdo.collector("postgresqlGetUser", {
    type: "db",
    action: "postgresql",
    server: {
        user: "loginName",
        password: "$loginName",
        host: "digitalprimeintps.cpjwenmlj3sr.us-west-2.rds.amazonaws.com",
        database: "plugdo",
        port: 5432
    },
    query: "select * from users where user_id = $1",
    parameter: ["json:querystring.user_id"]
});
plugdo.collector("mysqlGetAuditIntegrationsByStoreProcedure", {
    type: "db",
    action: "mysql",
    server: {
        user: "loginName",
        password: "$loginName",
        host: "digitalprimeint.cpjwenmlj3sr.us-west-2.rds.amazonaws.com",
        database: "plugdo"
    },
    queryType: "stored-procedure",
    query: "call get_integrations",
    parameter: ["json:integration"]
});

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