left-curve/left-curve
Dec 2024 – Apr 2026
17 Months active
Languages Used
RustSQLYAMLBorshGoGraphQLJSONTypeScript
Technical Skills
Asynchronous ProgrammingBackend DevelopmentBlockchainData PersistenceDatabaseDatabase Management
Fabien Penso
PROFILE
Fabien Penso
Over 17 months, contributed to the left-curve/left-curve repository by building and evolving a robust blockchain analytics and deployment platform. Developed SQL- and ClickHouse-based indexers, real-time GraphQL APIs, and automated CI/CD pipelines to support scalable data access and reliable releases. Enhanced system observability and security through Sentry, Prometheus, and Cloudflare integrations, while modernizing deployment workflows with Docker Compose, Ansible, and systemd orchestration. Leveraged Rust and TypeScript for backend and API development, focusing on maintainability, testability, and operational resilience. Addressed complex challenges in distributed systems, database optimization, and logging architecture to deliver measurable business value and platform reliability.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
401Total
Bugs
96
Commits
401
Features
203
Lines of code
116,664
Activity Months17
Your Network
12 peopleSame Organization
@pen.so2
Fabien PensoMember
Fabien PensoMember
Shared Repositories
10
Aleksandar IgnjatijevicMember
Zexsor33Member
Fabien PensoMember
Gabriela MoreiraMember
Dango-GeorgeMember
RhakiMember
Javier VianaMember
Fabien PensoMember
j0nl1Member
Work History
April 2026
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for left-curve/left-curve focused on improving client identity accuracy, auditability, and logging scalability. The team delivered a feature to preserve the original requester IP behind proxies and began aligning the logging stack with a modern architecture, while maintaining robust API surfaces for verification and analytics.
2 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for left-curve/left-curve focused on improving client identity accuracy, auditability, and logging scalability. The team delivered a feature to preserve the original requester IP behind proxies and began aligning the logging stack with a modern architecture, while maintaining robust API surfaces for verification and analytics.
April 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026Month: 2026-03 — Left Curve: Key deliverables and business value Highlights: - Delivered GraphQL 24-Hour Trading Statistics for asset pairs with lazy loading and data type refinements. Introduced pairStats and allPairStats queries with fields: currentPrice, price24HAgo, volume24H, priceChange24H. Commit: 2ac7459c0a59e498271440e22260e06af900e702. - Implemented lazy loading to minimize database queries and refactor data types for precise financial values; ensured schema is in sync with updated PairStats queries. - Fixed critical date-time binding issues in 24h window queries (DateTime64 binds, UNIX timestamp usage) to prevent binding/serialization errors and improve query reliability. - Refactored prices and volumes to BigDecimal to align with Candle pattern and provide consistent precision across GraphQL responses. - Improved reliability and test coverage: updated tests to use typed GraphQL queries, added guards for feature flags to avoid build-time issues, and corrected 24h volume calculations derived from trades. Impact: - Enables accurate, low-latency 24h trading statistics for asset pairs, empowering clients with timely insights and reducing unnecessary database load. - Strengthens data correctness, schema evolution, and maintainability, setting the foundation for broader analytics. Technologies/Skills Demonstrated: - GraphQL (async-graphql), Rust-based indexer, ClickHouse bindings, BigDecimal, DateTime64 handling, feature flag management, and test-driven updates.
March 2026
1 Commits • 1 Features
Mar 1, 2026Month: 2026-03 — Left Curve: Key deliverables and business value Highlights: - Delivered GraphQL 24-Hour Trading Statistics for asset pairs with lazy loading and data type refinements. Introduced pairStats and allPairStats queries with fields: currentPrice, price24HAgo, volume24H, priceChange24H. Commit: 2ac7459c0a59e498271440e22260e06af900e702. - Implemented lazy loading to minimize database queries and refactor data types for precise financial values; ensured schema is in sync with updated PairStats queries. - Fixed critical date-time binding issues in 24h window queries (DateTime64 binds, UNIX timestamp usage) to prevent binding/serialization errors and improve query reliability. - Refactored prices and volumes to BigDecimal to align with Candle pattern and provide consistent precision across GraphQL responses. - Improved reliability and test coverage: updated tests to use typed GraphQL queries, added guards for feature flags to avoid build-time issues, and corrected 24h volume calculations derived from trades. Impact: - Enables accurate, low-latency 24h trading statistics for asset pairs, empowering clients with timely insights and reducing unnecessary database load. - Strengthens data correctness, schema evolution, and maintainability, setting the foundation for broader analytics. Technologies/Skills Demonstrated: - GraphQL (async-graphql), Rust-based indexer, ClickHouse bindings, BigDecimal, DateTime64 handling, feature flag management, and test-driven updates.
February 2026
4 Commits • 2 Features
Feb 1, 2026February 2026: Delivered deployment modernization for ClickHouse with Docker Compose and systemd orchestration; completed CI/CD security hardening (NGINX upgrade, image digest pinning, and signature-verification improvements) and security-scanner integration. Implemented reliable startup sequencing for dependent services and improved deployment maintainability. Fixed critical CI workflow issues to reduce false negatives and drift, enabling safer, reproducible releases with stronger security posture.
4 Commits • 2 Features
Feb 1, 2026February 2026: Delivered deployment modernization for ClickHouse with Docker Compose and systemd orchestration; completed CI/CD security hardening (NGINX upgrade, image digest pinning, and signature-verification improvements) and security-scanner integration. Implemented reliable startup sequencing for dependent services and improved deployment maintainability. Fixed critical CI workflow issues to reduce false negatives and drift, enabling safer, reproducible releases with stronger security posture.
February 2026
January 2026
10 Commits • 9 Features
Jan 1, 2026January 2026 performance summary for left-curve/left-curve focused on delivering business value and strengthening system reliability.
January 2026
10 Commits • 9 Features
Jan 1, 2026January 2026 performance summary for left-curve/left-curve focused on delivering business value and strengthening system reliability.
December 2025
42 Commits • 16 Features
Dec 1, 2025December 2025 performance summary for left-curve/left-curve. The team delivered substantial improvements in deployment visibility, security, and observability, driving faster, safer releases and more reliable service operation. Key features delivered include a Discord Notification System for deploys and preview environments with enriched messaging (titles/authors) and updated webhook behavior, an Uptime Kuma-based uptime monitoring integration with WireGuard host support, and JSON-formatted Nginx logs to improve parsing and filtering. Observability and error tracking were expanded with Sentry integration and Loki support in Prometheus, complemented by targeted hardening of monitoring (Prometheus WireGuard host hardening) to reduce false downtime. CI/CD and security enhancements include forced rebuilds in CI, version bumps in the release process, and secure key management (Penso SSH keys) plus removal of outdated deploy keys. Overall, these changes reduced alert noise, improved fault detection, and strengthened the security posture while accelerating release cycles.
42 Commits • 16 Features
Dec 1, 2025December 2025 performance summary for left-curve/left-curve. The team delivered substantial improvements in deployment visibility, security, and observability, driving faster, safer releases and more reliable service operation. Key features delivered include a Discord Notification System for deploys and preview environments with enriched messaging (titles/authors) and updated webhook behavior, an Uptime Kuma-based uptime monitoring integration with WireGuard host support, and JSON-formatted Nginx logs to improve parsing and filtering. Observability and error tracking were expanded with Sentry integration and Loki support in Prometheus, complemented by targeted hardening of monitoring (Prometheus WireGuard host hardening) to reduce false downtime. CI/CD and security enhancements include forced rebuilds in CI, version bumps in the release process, and secure key management (Penso SSH keys) plus removal of outdated deploy keys. Overall, these changes reduced alert noise, improved fault detection, and strengthened the security posture while accelerating release cycles.
December 2025
November 2025
55 Commits • 29 Features
Nov 1, 2025November 2025 monthly summary for left-curve/left-curve: Focused on reliability, edge delivery, security, and developer productivity. Delivered GraphiQL hosting on its own host with a dedicated load balancer and updated endpoints to improve availability and testing isolation. Implemented Cloudflare integration with cloudflared deploys and Traefik alignment to strengthen edge routing and security posture. Hardened deployment workflows with a robust deploy flow, force deploy capability, and remediation for deployment failures to reduce rollout risk. Strengthened observability and diagnostics through Metabase integration, GraphiQL health checks, alert manager fixes, and systemd-based monitoring. Accelerated build tooling and packaging efficiency with sccache caching, automatic updates, Debian package support, S3 storage backend, tempo deploys, and Localdango build improvements to speed releases and improve reliability.
November 2025
55 Commits • 29 Features
Nov 1, 2025November 2025 monthly summary for left-curve/left-curve: Focused on reliability, edge delivery, security, and developer productivity. Delivered GraphiQL hosting on its own host with a dedicated load balancer and updated endpoints to improve availability and testing isolation. Implemented Cloudflare integration with cloudflared deploys and Traefik alignment to strengthen edge routing and security posture. Hardened deployment workflows with a robust deploy flow, force deploy capability, and remediation for deployment failures to reduce rollout risk. Strengthened observability and diagnostics through Metabase integration, GraphiQL health checks, alert manager fixes, and systemd-based monitoring. Accelerated build tooling and packaging efficiency with sccache caching, automatic updates, Debian package support, S3 storage backend, tempo deploys, and Localdango build improvements to speed releases and improve reliability.
October 2025
71 Commits • 37 Features
Oct 1, 2025During 2025-10, the left-curve project delivered key deployment, security, and observability enhancements across testnet environments, multi-node configurations, and GraphQL tooling, while stabilizing the deployment workflow and improving reliability. Notable outcomes include enabling testnet deployments, adding multi-node support, encrypting secrets in the repository, integrating GraphiQL UI with updated endpoints, and aligning Docker deployments with network identifiers via chain_id. These changes reduce time-to-value for new environments, strengthen data protection, and improve operator efficiency through better logging, caching, and deployment rituals.
71 Commits • 37 Features
Oct 1, 2025During 2025-10, the left-curve project delivered key deployment, security, and observability enhancements across testnet environments, multi-node configurations, and GraphQL tooling, while stabilizing the deployment workflow and improving reliability. Notable outcomes include enabling testnet deployments, adding multi-node support, encrypting secrets in the repository, integrating GraphiQL UI with updated endpoints, and aligning Docker deployments with network identifiers via chain_id. These changes reduce time-to-value for new environments, strengthen data protection, and improve operator efficiency through better logging, caching, and deployment rituals.
October 2025
September 2025
38 Commits • 15 Features
Sep 1, 2025September 2025 summary for left-curve/left-curve highlights increased data access reliability, safer and faster deployments, and improved operability. Delivered API/data access enhancements (trade cache, GraphQL routes, transaction storage details, Grug subscriptions); reinforced CI/CD with full-app PR deploys, deployment refactor, cleanup PRs, and workflow updates; added manual CometBFT docker build; tackled extensive deploy and build stability fixes (devnet/main deploys, Traefik removal, general deploy fixes); plus improved observability (JSON logs, preview app monitoring, docker labels). This work reduces release risk, accelerates feature delivery, and demonstrates expertise in GraphQL, caching, containerization, and release engineering.
September 2025
38 Commits • 15 Features
Sep 1, 2025September 2025 summary for left-curve/left-curve highlights increased data access reliability, safer and faster deployments, and improved operability. Delivered API/data access enhancements (trade cache, GraphQL routes, transaction storage details, Grug subscriptions); reinforced CI/CD with full-app PR deploys, deployment refactor, cleanup PRs, and workflow updates; added manual CometBFT docker build; tackled extensive deploy and build stability fixes (devnet/main deploys, Traefik removal, general deploy fixes); plus improved observability (JSON logs, preview app monitoring, docker labels). This work reduces release risk, accelerates feature delivery, and demonstrates expertise in GraphQL, caching, containerization, and release engineering.
August 2025
60 Commits • 30 Features
Aug 1, 2025August 2025 (2025-08) monthly summary for left-curve/left-curve. Focus this month was to boost reliability, performance, and observability across deployment workflows and data pipelines, enabling scalable operations and clearer telemetry for faster decision-making. Key features delivered: - Pub/Sub generalization: made pubsub more generic (commit e4f963e652938eea44d280dc7f5de5695dfec9fc). This paves the way for flexible topic routing and multi-tenant usage. - Reduce metrics cardinality: lowered cardinality to improve query performance and reduce storage costs (commit 94d97ace1214825ceaa654ec41cc8ca648de05f4). - Deploy workflow updates: modernized the deploy process to speed releases and reduce toil (commit fc0a55e159ef236a10ce41fc0ad9cc7c7a127f16). - Deploy-testnet entry: added a dedicated deploy-testnet entry for safer testing (commit 77be28d537ae7450b0e54acb206d2d1574b71d61). - Monitoring and runtime improvements: added Dozzle-based log viewing and migrated from runners; introduced postgres-exporter for DB visibility (commits 10d6a44b2d55e4ed4018ba6e161f1bd97c652054 and 747c0682bdce7c9038724cd947d75fe4fc9ac849; and the migration to Dozzle (57370c16750add3d5c1c60db7de8eaeb3b704550)). - Observability and analytics enhancements: expanded metrics/telemetry and analytics collection, including enhanced logging, and indexing for query performance (commits a53786869e3fab1ffb133f7e7fd2d8612938e0a3; 86c480412fa8d09b7db84a762ddfa025bd7d23a4; 491def1078a93fe8c1364ed1c03a7222f6c57876; 041150ecb2d00b05a7a2816ba17bdf0240a74c06). - Performance and memory optimizations: memory usage improvements for psql and ClickHouse, along with Prometheus memory warnings improvements (commits 0590d9bb7bed9b9efab525f8a68a166295e88965 and bb5313e6b2f5da903ac135b933fe4be06d9b4354). - Feature/configuration enhancements: added new operation type support, improved candle management and events, and introduced preview deployments for safer change validation (commits 5c8ed4260b634f603ebd185b7b1cc42b61c8e6e2; 03512cbf473572049a9dc9c24955fea90d27b098; a5dc6d334bd3e5837505c9ab066f8539285b53f7; 9bc1c894c60e7f5d17563392e93a2e8f5f0aef6a). Major bugs fixed: - Deploys stability: fixed deploys issue to ensure reliable deployments (commit f874b2500c36303d46035d87257dab00c3e03dad). - psql integration: fixed a psql error affecting startup and queries (commit b4202b5aa93f09a23d091011bed49005d72cb736). - Monitoring naming: renamed ovh3 in monitoring to reflect updated topology (commit 29da39c010e2a505effe77704f4a71c86acb648c). - File handling: fixed issues when files already exist during operations (commit 828fec6b2ec6166c459998f414a5d57beefef461). - Candle data integrity: addressed candle duplicates and price calculation issues, with related fixes (commits 5ee1bca5556968962b034e6b6d699c8fe3157082; d29c3372a64df3c3b9a830da88b4bcc714703936). Overall impact and accomplishments: - Significant uplift in deployment velocity and reliability, with safer testnet deployments and better live monitoring via Dozzle and postgres-exporter. - Substantial performance and cost benefits from reduced metrics cardinality, SQL indexing improvements, and memory optimizations for psql/ClickHouse. - Clearer telemetry, richer logs, and more actionable analytics enabling faster troubleshooting and data-driven decisions. Technologies and skills demonstrated: - Distributed systems patterns (generalized Pub/Sub), observability (metrics, logging, tracing), and performance tuning (memory optimization, SQL indexing). - Workflow automation and deployment reliability improvements, including testnet support and preview deployments. - Data pipeline robustness (ClickHouse candles, event-driven candles with OrdersMatched, and index relocation to dango directory).
60 Commits • 30 Features
Aug 1, 2025August 2025 (2025-08) monthly summary for left-curve/left-curve. Focus this month was to boost reliability, performance, and observability across deployment workflows and data pipelines, enabling scalable operations and clearer telemetry for faster decision-making. Key features delivered: - Pub/Sub generalization: made pubsub more generic (commit e4f963e652938eea44d280dc7f5de5695dfec9fc). This paves the way for flexible topic routing and multi-tenant usage. - Reduce metrics cardinality: lowered cardinality to improve query performance and reduce storage costs (commit 94d97ace1214825ceaa654ec41cc8ca648de05f4). - Deploy workflow updates: modernized the deploy process to speed releases and reduce toil (commit fc0a55e159ef236a10ce41fc0ad9cc7c7a127f16). - Deploy-testnet entry: added a dedicated deploy-testnet entry for safer testing (commit 77be28d537ae7450b0e54acb206d2d1574b71d61). - Monitoring and runtime improvements: added Dozzle-based log viewing and migrated from runners; introduced postgres-exporter for DB visibility (commits 10d6a44b2d55e4ed4018ba6e161f1bd97c652054 and 747c0682bdce7c9038724cd947d75fe4fc9ac849; and the migration to Dozzle (57370c16750add3d5c1c60db7de8eaeb3b704550)). - Observability and analytics enhancements: expanded metrics/telemetry and analytics collection, including enhanced logging, and indexing for query performance (commits a53786869e3fab1ffb133f7e7fd2d8612938e0a3; 86c480412fa8d09b7db84a762ddfa025bd7d23a4; 491def1078a93fe8c1364ed1c03a7222f6c57876; 041150ecb2d00b05a7a2816ba17bdf0240a74c06). - Performance and memory optimizations: memory usage improvements for psql and ClickHouse, along with Prometheus memory warnings improvements (commits 0590d9bb7bed9b9efab525f8a68a166295e88965 and bb5313e6b2f5da903ac135b933fe4be06d9b4354). - Feature/configuration enhancements: added new operation type support, improved candle management and events, and introduced preview deployments for safer change validation (commits 5c8ed4260b634f603ebd185b7b1cc42b61c8e6e2; 03512cbf473572049a9dc9c24955fea90d27b098; a5dc6d334bd3e5837505c9ab066f8539285b53f7; 9bc1c894c60e7f5d17563392e93a2e8f5f0aef6a). Major bugs fixed: - Deploys stability: fixed deploys issue to ensure reliable deployments (commit f874b2500c36303d46035d87257dab00c3e03dad). - psql integration: fixed a psql error affecting startup and queries (commit b4202b5aa93f09a23d091011bed49005d72cb736). - Monitoring naming: renamed ovh3 in monitoring to reflect updated topology (commit 29da39c010e2a505effe77704f4a71c86acb648c). - File handling: fixed issues when files already exist during operations (commit 828fec6b2ec6166c459998f414a5d57beefef461). - Candle data integrity: addressed candle duplicates and price calculation issues, with related fixes (commits 5ee1bca5556968962b034e6b6d699c8fe3157082; d29c3372a64df3c3b9a830da88b4bcc714703936). Overall impact and accomplishments: - Significant uplift in deployment velocity and reliability, with safer testnet deployments and better live monitoring via Dozzle and postgres-exporter. - Substantial performance and cost benefits from reduced metrics cardinality, SQL indexing improvements, and memory optimizations for psql/ClickHouse. - Clearer telemetry, richer logs, and more actionable analytics enabling faster troubleshooting and data-driven decisions. Technologies and skills demonstrated: - Distributed systems patterns (generalized Pub/Sub), observability (metrics, logging, tracing), and performance tuning (memory optimization, SQL indexing). - Workflow automation and deployment reliability improvements, including testnet support and preview deployments. - Data pipeline robustness (ClickHouse candles, event-driven candles with OrdersMatched, and index relocation to dango directory).
August 2025
July 2025
30 Commits • 11 Features
Jul 1, 2025July 2025 performance summary for left-curve/left-curve: delivered major backend enhancements enabling richer analytics, improved reliability, and stronger observability. Key outcomes include GraphQL API tuning for higher complexity, a composable indexer architecture with a standalone HTTP server, a ClickHouse indexer with increased scalability and access controls, Sentry integration with tests for error visibility, and extensive logging/observability improvements plus deployment reliability work, driving faster time-to-insight and safer deploys.
July 2025
30 Commits • 11 Features
Jul 1, 2025July 2025 performance summary for left-curve/left-curve: delivered major backend enhancements enabling richer analytics, improved reliability, and stronger observability. Key outcomes include GraphQL API tuning for higher complexity, a composable indexer architecture with a standalone HTTP server, a ClickHouse indexer with increased scalability and access controls, Sentry integration with tests for error visibility, and extensive logging/observability improvements plus deployment reliability work, driving faster time-to-insight and safer deploys.
June 2025
27 Commits • 15 Features
Jun 1, 2025Month: 2025-06 | Left Curve platform: Key features delivered, major bugs fixed, and overall impact focused on reliability, maintainability, and measurable business value. Highlights include account subscriptions filtering, robust account handling with fromAccount/toAccount fields, GraphQL tooling enhancements, and improved observability. These changes reduce data inconsistencies, improve user targeting, shorten debugging cycles, and enable safer deployments across the data pipeline and downstream systems.
27 Commits • 15 Features
Jun 1, 2025Month: 2025-06 | Left Curve platform: Key features delivered, major bugs fixed, and overall impact focused on reliability, maintainability, and measurable business value. Highlights include account subscriptions filtering, robust account handling with fromAccount/toAccount fields, GraphQL tooling enhancements, and improved observability. These changes reduce data inconsistencies, improve user targeting, shorten debugging cycles, and enable safer deployments across the data pipeline and downstream systems.
June 2025
May 2025
30 Commits • 18 Features
May 1, 2025May 2025: Strengthened CI/CD, automated deployments, and deployment resilience for left-curve. Focused on repeatable devnet/server provisioning, deploys reset, security and observability improvements, and readiness for testnet deployments and CometBFT operations. Business value: faster releases, fewer deploy failures, improved security and diagnosability, and stronger network testing capabilities.
May 2025
30 Commits • 18 Features
May 1, 2025May 2025: Strengthened CI/CD, automated deployments, and deployment resilience for left-curve. Focused on repeatable devnet/server provisioning, deploys reset, security and observability improvements, and readiness for testnet deployments and CometBFT operations. Business value: faster releases, fewer deploy failures, improved security and diagnosability, and stronger network testing capabilities.
April 2025
6 Commits • 5 Features
Apr 1, 2025April 2025 (2025-04): Delivered a set of features and tooling to improve production readiness, data processing reliability, and deployment efficiency. Highlights focus on observability, GraphQL tooling, SQL-based indexing, data processing refinements, and CI/CD automation.
6 Commits • 5 Features
Apr 1, 2025April 2025 (2025-04): Delivered a set of features and tooling to improve production readiness, data processing reliability, and deployment efficiency. Highlights focus on observability, GraphQL tooling, SQL-based indexing, data processing refinements, and CI/CD automation.
April 2025
March 2025
17 Commits • 10 Features
Mar 1, 2025During March 2025, the team delivered a set of strategic GraphQL, block data, and tooling enhancements that hardened data freshness, improved query performance, and expanded programmatic access to blockchain data. These changes provide stronger business value through faster analytics, more reliable data pipelines, and a scalable foundation for future growth, while advancing developer productivity with improved configuration and testing practices. Key outcomes include real-time GraphQL subscriptions for transactions, messages, and events complemented by DataLoader-based batching and support for nested events and optional block height queries, significantly reducing data fetch latency and query load. New block data endpoints enable programmatic retrieval of blocks and block results by height, opening automation and dashboards for monitoring and reporting. Blocks now expose a transactions_count metric, with migration logic to surface per-block activity. Storage was reorganized to store blocks in height-based subdirectories to improve scalability and write reliability. A new Dango CLI configuration system (app.toml + env vars) updates networking, indexer, and transaction parameter settings for a consistent dev/ops experience, reducing misconfigurations and deployment drift. In addition, reliability improvements in testing, including VAA data caching and retry tracing, contributed to more stable test runs under flaky conditions.
March 2025
17 Commits • 10 Features
Mar 1, 2025During March 2025, the team delivered a set of strategic GraphQL, block data, and tooling enhancements that hardened data freshness, improved query performance, and expanded programmatic access to blockchain data. These changes provide stronger business value through faster analytics, more reliable data pipelines, and a scalable foundation for future growth, while advancing developer productivity with improved configuration and testing practices. Key outcomes include real-time GraphQL subscriptions for transactions, messages, and events complemented by DataLoader-based batching and support for nested events and optional block height queries, significantly reducing data fetch latency and query load. New block data endpoints enable programmatic retrieval of blocks and block results by height, opening automation and dashboards for monitoring and reporting. Blocks now expose a transactions_count metric, with migration logic to surface per-block activity. Storage was reorganized to store blocks in height-based subdirectories to improve scalability and write reliability. A new Dango CLI configuration system (app.toml + env vars) updates networking, indexer, and transaction parameter settings for a consistent dev/ops experience, reducing misconfigurations and deployment drift. In addition, reliability improvements in testing, including VAA data caching and retry tracing, contributed to more stable test runs under flaky conditions.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 performance summary for left-curve/left-curve focusing on delivering real-time data capabilities, Tendermint integration, and reliability improvements. Key outcomes include real-time GraphQL subscriptions with a flexible pub/sub backend (in-memory or PostgreSQL), server refactors to support subscriptions, and Tendermint-related mutations/queries with improved CORS handling and integration with the indexer and HTTP server. A graceful shutdown fix for Ctrl-C was implemented using tokio::select! and CI runner updates moved to a self-hosted runner, enhancing stability of deployments and CI pipelines. These changes collectively improve data freshness for blocks/transfers, blockchain interoperability, and operational reliability.
4 Commits • 2 Features
Feb 1, 2025February 2025 performance summary for left-curve/left-curve focusing on delivering real-time data capabilities, Tendermint integration, and reliability improvements. Key outcomes include real-time GraphQL subscriptions with a flexible pub/sub backend (in-memory or PostgreSQL), server refactors to support subscriptions, and Tendermint-related mutations/queries with improved CORS handling and integration with the indexer and HTTP server. A graceful shutdown fix for Ctrl-C was implemented using tokio::select! and CI runner updates moved to a self-hosted runner, enhancing stability of deployments and CI pipelines. These changes collectively improve data freshness for blocks/transfers, blockchain interoperability, and operational reliability.
February 2025
January 2025
2 Commits • 1 Features
Jan 1, 2025Monthly work summary for 2025-01 focusing on delivering features and improving data access within the left-curve project. Highlights include a new SQL-based transfers sub-indexer and a GraphQL-enabled API for querying indexed blockchain data.
January 2025
2 Commits • 1 Features
Jan 1, 2025Monthly work summary for 2025-01 focusing on delivering features and improving data access within the left-curve project. Highlights include a new SQL-based transfers sub-indexer and a GraphQL-enabled API for querying indexed blockchain data.
December 2024
2 Commits • 1 Features
Dec 1, 2024December 2024: Delivered a durable Grug Blockchain Indexing System in left-curve/left-curve by introducing a SQL-based indexer and on-disk persistence. Refactored core components to integrate the indexer, added migrations to support persistent indexing, and established on-disk caching/storage for blocks. This enables scalable blockchain analytics, faster query performance, and reliable data durability for long-term insights.
2 Commits • 1 Features
Dec 1, 2024December 2024: Delivered a durable Grug Blockchain Indexing System in left-curve/left-curve by introducing a SQL-based indexer and on-disk persistence. Refactored core components to integrate the indexer, added migrations to support persistent indexing, and established on-disk caching/storage for blocks. This enables scalable blockchain analytics, faster query performance, and reliable data durability for long-term insights.
December 2024
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Quality Metrics
Correctness88.4%
Maintainability86.2%
Architecture85.0%
Performance81.2%
AI Usage24.0%
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Programming Languages
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Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI developmentAWS S3AWS S3 integrationActixActix WebActix-webAlertingAnsibleAsync ProgrammingAsync-RustAsync-graphqlAsynchronous Programming
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