All You need to know about SPKNetwork's Union Indexer Node (@sagarkothari88)

Hello Hive Community Members,

With this post, let's talk about unsung hero - Union Indexer Node.

What is a union indexer node?

The union indexer is focused on indexing multiple sources of social media posts.
At the moment the indexer supports:

Off-chain Ceramic content
HIVE content

Those who wants to develop dApps which supports both on-chain (hive-blockchain) and off-chain (ceramic content), I recommend them reading this article. With this post, they can set-up an indexer with which off-chain & on-chain data can be easily accessible.

Why call it "Union"? Because it's a union of off-chain & on-chain data.

Do we have any union-indexer-node running?

Yes. @spknetwork is running one union-indexer node
https://union.us-02.infra.3speak.tv/api/v2/graphql
DApp on which you're working, you can use that Endpoint, integrate graphQL APIs & you're all set.

Who is using such union-indexer-node at the moment?

Yes. There are 2 DApps already running union-indexer-nodes.
3Speak's new Beta web-app deployed here - https://3speak-nextjs-4vvcag584-spknetwork.vercel.app/
3Speak's Mobile app which you can download from PlayStore & AppStore.

Did I (@sagarkothari88) run any indexer node?

Yes. I was running a union indexer node.
I took it down & utilising that computer for video-encoder-node.
May be, in next post, I'll explain about how to setup a video-encoder-node.

Why to run union-indexer node?

By having your own union-indexer-node, you can easily integrate it in your dApp
You can access to off-chain & on-chain data with ease
Querying with union-indexer-node is much easier.
Data storage & system config required is much lesser compare to Hive RPC node.
More power to decentralisation

How 3Speak Mobile app can switch & use different uninon-indexer-node?

On 3Speak mobile app, you can easily switch union-indexer-node.
Launch App, open quick access menu & tap on settings.
Now from settings screen, tap on union indexer node, and you can select any union-indexer-node of your choice.
Here is the reference image

How to run a Union-indexer-node?

Checkout following repository
https://github.com/spknetwork/union-indexer-node
Make sure you've docker & docker-compose installed - https://docs.docker.com/compose/install/
From command-line/terminal, just run command - docker compose up -d, you're all set.
In case if you wish to expose port to public IP, follow this guideline https://nginx.org/en/docs/beginners_guide.html

How to use union-indexer-node?

You can use GraphQL queries to get the data from union-indexer-node
Check out this post to know more -

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About the SPK Network:

The SPK Network is a decentralised Web 3.0 protocol that rewards value creators and infrastructure providers appropriately and autonomously by distributing reward tokens so that every user, creator, and platform can earn rewards on a level playing field.

Check out the SPK Network Light Paper:
Our Website: https://spk.network/
Telegram Group: https://t.me/spknetwork
Discord Server: https://discord.gg/JbhQ7dREsP
SPK Network Linktree: https://linktr.ee/spknetwork

Important Links:


3Speak Linktree	SPK Network Linktree


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