info_tfgrid/collections/developers/javascript/grid3_javascript_zdb.md

<h1>Deploying ZDB</h1>

<h2>Table of Contents</h2>

- [Introduction](#introduction)
- [Prerequisites](#prerequisites)
- [Example code](#example-code)
- [Detailed explanation](#detailed-explanation)
  - [Getting the client](#getting-the-client)
  - [Building the model](#building-the-model)
  - [preparing ZDBs collection](#preparing-zdbs-collection)
  - [Deployment](#deployment)
  - [Getting Deployment information](#getting-deployment-information)
  - [Deleting a deployment](#deleting-a-deployment)

***

## Introduction

We show how to deploy ZDB on the TFGrid with the Javascript client.

## Prerequisites

- Make sure you have your [client](./grid3_javascript_loadclient.md) prepared

## Example code

```ts
import { FilterOptions, ZDBModel, ZdbModes, ZDBSModel } from "../src";
import { getClient } from "./client_loader";
import { log } from "./utils";

async function main() {
    const grid3 = await getClient();

    const zdbQueryOptions: FilterOptions = {
        sru: 1,
        hru: 1,
        availableFor: grid3.twinId,
        farmId: 1,
    };

    // create zdb object
    const zdb = new ZDBModel();
    zdb.name = "hamada";
    zdb.node_id = +(await grid3.capacity.filterNodes(zdbQueryOptions))[0].nodeId;
    zdb.mode = ZdbModes.user;
    zdb.disk_size = 1;
    zdb.publicNamespace = false;
    zdb.password = "testzdb";

    // create zdbs object
    const zdbs = new ZDBSModel();
    zdbs.name = "tttzdbs";
    zdbs.zdbs = [zdb];
    zdbs.metadata = '{"test": "test"}';

    // deploy zdb
    const res = await grid3.zdbs.deploy(zdbs);
    log(res);

    // get the deployment
    const l = await grid3.zdbs.getObj(zdbs.name);
    log(l);

    // // delete
    // const d = await grid3.zdbs.delete({ name: zdbs.name });
    // log(d);

    await grid3.disconnect();
}

main();
```

## Detailed explanation

### Getting the client

```ts
const grid3 = getClient();
```

### Building the model

```ts
// create zdb object
const zdb = new ZDBModel();
zdb.name = "hamada";
zdb.node_id = +(await grid3.capacity.filterNodes(zdbQueryOptions))[0].nodeId;
zdb.mode = ZdbModes.user;
zdb.disk_size = 1;
zdb.publicNamespace = false;
zdb.password = "testzdb";
```

Here we define a `ZDB model` and setting the relevant properties e.g

- name
- node_id : where to deploy on
- mode: `user` or `seq`
- disk_size: disk size in GB
- publicNamespace: a public namespace can be read-only if a password is set
- password: namespace password

### preparing ZDBs collection

```ts
// create zdbs object
const zdbs = new ZDBSModel();
zdbs.name = "tttzdbs";
zdbs.zdbs = [zdb];
zdbs.metadata = '{"test": "test"}';
```

you can attach multiple ZDBs into the collection and send it for deployment

### Deployment

```ts
const res = await grid3.zdbs.deploy(zdbs);
log(res);
```

### Getting Deployment information

`getObj` gives detailed information about the workload.

```ts
// get the deployment
const l = await grid3.zdbs.getObj(zdbs.name);
log(l);
```

### Deleting a deployment

`.delete` method helps cancelling the relevant contracts related to that ZDBs deployment

```ts
// delete
const d = await grid3.zdbs.delete({ name: zdbs.name });
log(d);
```