---
title: "Starting a Local Data Product Server"
slug: "starting-a-local-data-product-server"
updated: 2021-06-23T20:55:19Z
published: 2021-06-23T20:55:19Z
---

> ## Documentation Index
> Fetch the complete documentation index at: https://code.tag.bio/llms.txt
> Use this file to discover all available pages before exploring further.

# Starting a Local Data Product Server

One of the best ways to rapidly iterate on a new project in Tag.bio is to utilize a local data product server from the command line. All the Tag.bio analysis platform requires to get started is a config file and later a data archive, both of which can be created automatically.

To support the automatic creation, a square data set in a csv in the fc-folder structure is required, along with a server jar file to connect to the Tag.bio engine.

First, the *auto_config.json* file is created with default values, which will then use to make an archive of the data. To create the *auto_config.json*, change to the root of your project folder so that output is stored correctly, and then run these commands in a terminal:

```
java \
    -jar fc_csv_server.jar \
    csv=data.csv \
    data_dir=./path_to_data.csv/ \
    id_column="unique entity column in data.csv" \
    output_config=auto_config.json \
    die=true
```

The resultant *auto_config.json* file is generated with parsers inferred from the source data. These inferences should be evaluated and modified to best suit the intended analysis for the project.

After the *auto_config.json* has been generated with parsers for the dataset, an archive needs to be built.

```
java \
    -jar fc_csv_server.jar \
    config=auto_config.json \
    archive=archive.ser \
    die=true
```

The *archive.ser* file can be reused as needed and does not need to be rebuilt until the source data is modified.

Once all the required components have been built, the server can be started locally.

```
java \
    -jar fc_csv_server.jar \
    archive=archive.ser
```

Notice here that the `die=true` statement been removed, as we want the server to remain open and available. To kill an active server, use the control + C key combination from the terminal.

Now, within the Tag.bio interface, a local data product instance will be available to interact with.