Proponent: esnXpmeRBVMqbaFoY5bbFi9Lapuh85jnDkN8QQtoh3k4jBXxV

Date: 6th August 2022

Requested PDEX: 5,730.1756 PDEX 

Short description: Ongoing costs for the running of high performance, scalable, and reliable public infrastructure for Polkadex.

# Original Motivation

Setting up blockchain infrastructure is difficult, time consuming, and expensive:

- It requires a level of server development expertise that many do not have
- It’s costly to run a full node nearly continuously, especially when your dApp’s traffic is low and inconsistent. 
- Running production level infrastructure is especially tricky. You need to autoscale quickly to handle bursty traffic, and you want to provide services in different regions around the world to provide low latency services - all of this is incredibly costly, but comes with significant economies of scale for a provider.
- DevOps requires constant attention - time that would be better spent elsewhere building.

A shared node API service helps mitigate these barriers of entry to trying accessing a new protocol by reducing all these costs to near zero. We manage all the nodes for our users and distribute them across the world (with intelligent routing) to achieve global scalability from day 1, we monitor each node and ensure that they meet certain service levels, and we have the expertise and scale to handle production workloads and high peak traffic.

In summary, we try to reduce the pain of getting started on Polkadex and minimise the costs of accessing secure nodes while traffic from your dApp is low. When you grow, you can continue to use our shared API service, or we also provide access to one click deploy dedicated polkadex nodes  to any cloud of your choosing. 

## Service Details and Enhancements

This last quarter was huge for Polkadex and OnFinality, a peak of 7.684 million responses on the 12th/May compared with an average of 1,467M throughout the period. Overall we saw over 133.5 million API responses and 199 GB of data traffic. 

The full writeup of this service is [here](https://docs.google.com/document/d/15F7WOKANIeR0RwfKdKPSxzlHsSHJ6V0mDsNNLwD9vcU/edit?usp=sharing)


The proposal aims to develop the KILT Decentralized Identity Provider (DIP), offering an OpenID-like authentication flow for Web3. It enables cross-chain identity establishment by using on-chain and off-chain mechanisms. Led by BOTLabs GmbH, seeks to reduce centralization in identity management while providing users control over their data. Key components include pallets for identity providers and relying parties, along with support crates for chain runtimes. The proposal outlines milestones for development, testing, and deployment, highlighting the need for ongoing maintenance and future enhancements

Technical support on Github and in #polkascan:matrix.org and substrate.stackexchange.com channels.

Add support for runtime calls at other blocks than the most recent #346.

Upgrade contract interface to support WeightV2 #337.

Added SCALE type definitions for upcoming MetadataV15 in Substrate.

Implemented new Polkascan Explorer and Subsquid extensions to the py-substrate-interface extension framework.

Added multiple params as key support for query_map().

New runtime interface: more intuitive approach to interface with the runtime functionality.

Updated metadata docs for Polkadot & Kusama parachain and stand-alone runtimes.

Added support for ink! v4

- The person is requesting 5,730.1756 PDEX for ongoing costs of running infrastructure for Polkadex.
- Setting up blockchain infrastructure is difficult and expensive.
- They offer a shared node API service to reduce costs and make it easier to access the protocol.
- They had a successful quarter with a high number of API responses and data traffic.
- More details can be found in the provided link.

OnFinality High Performance Public Infrastructure (to end of Q2 2022)

No Active Proposals