--- description: Monitor dropped events in the dashboard and via GraphQL, generate schema-aware TypeScript types for pipeline bindings, and set up pipelines faster with Simple mode. title: Dropped event metrics, typed Pipelines bindings, and improved setup image: https://developers.cloudflare.com/changelog/post/2026-02-24-typed-bindings-setup-improvements-error-metrics/og.png?v=bf5afc18d0454c86 --- [Skip to content](#main-content) [View RSS feeds](https://developers.cloudflare.com/fundamentals/new-features/available-rss-feeds/) [ Subscribe to RSS](https://developers.cloudflare.com/changelog/rss/index.xml) [Back to all posts](https://developers.cloudflare.com/changelog) February 24, 2026 ## Dropped event metrics, typed Pipelines bindings, and improved setup [Basin Pipelines](https://developers.cloudflare.com/basin-pipelines/) [Basin](https://developers.cloudflare.com/basin/) [Workers](https://developers.cloudflare.com/workers/) Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-02-24-typed-bindings-setup-improvements-error-metrics/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/) [Cloudflare Pipelines](https://developers.cloudflare.com/basin-pipelines/) ingests streaming data via [Workers](https://developers.cloudflare.com/workers/) or HTTP endpoints, transforms it with SQL, and writes it to [R2](https://developers.cloudflare.com/r2/) as Apache Iceberg tables. Today we are shipping three improvements to help you understand why streaming events get dropped, catch data quality issues early, and set up Pipelines faster. #### Dropped event metrics When [stream](https://developers.cloudflare.com/basin-pipelines/streams/) events don't match the expected schema, Pipelines accepts them during ingestion but drops them when attempting to deliver them to the [sink](https://developers.cloudflare.com/basin-pipelines/sinks/). To help you identify the root cause of these issues, we are introducing a new dashboard and metrics that surface dropped events with detailed error messages. ![The Errors tab in the Cloudflare dashboard showing deserialization errors grouped by type with individual error details](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=3066,height=1466,format=webp/_astro/pipelines-error-log-dash.6JIa7r5d.png) Dropped events can also be queried programmatically via the new `pipelinesUserErrorsAdaptiveGroups` GraphQL dataset. The dataset breaks down failures by specific error type (`missing_field`, `type_mismatch`, `parse_failure`, or `null_value`) so you can trace issues back to the source. ```graphql query GetPipelineUserErrors( $accountTag: String! $pipelineId: String! $datetimeStart: Time! $datetimeEnd: Time! ) { viewer { accounts(filter: { accountTag: $accountTag }) { pipelinesUserErrorsAdaptiveGroups( limit: 100 filter: { pipelineId: $pipelineId datetime_geq: $datetimeStart datetime_leq: $datetimeEnd } orderBy: [count_DESC] ) { count dimensions { errorFamily errorType } } } } } ``` For the full list of dimensions, error types, and additional query examples, refer to [User error metrics](https://developers.cloudflare.com/basin-pipelines/observability/metrics/#user-error-metrics). #### Typed Pipelines bindings Sending data to a Pipeline from a Worker previously used a generic `Pipeline` type, which meant schema mismatches (wrong field names, incorrect types) were only caught at runtime as dropped events. Running `wrangler types` now generates schema-specific TypeScript types for your [Pipeline bindings](https://developers.cloudflare.com/basin-pipelines/streams/writing-to-streams/#send-via-workers). TypeScript catches missing required fields and incorrect field types at compile time, before your code is deployed. ```ts declare namespace Cloudflare { type EcommerceStreamRecord = { user_id: string; event_type: string; product_id?: string; amount?: number; }; interface Env { STREAM: import("cloudflare:pipelines").Pipeline; } } ``` For more information, refer to [Typed Pipeline bindings](https://developers.cloudflare.com/basin-pipelines/streams/writing-to-streams/#typed-pipeline-bindings). #### Improved Pipelines setup Setting up a new Pipeline previously required multiple manual steps: creating an R2 bucket, enabling R2 Data Catalog, generating an API token, and configuring format, compression, and rolling policies individually. The `wrangler pipelines setup` command now offers a **Simple** setup mode that applies recommended defaults and automatically creates the [R2 bucket](https://developers.cloudflare.com/r2/buckets/) and enables [R2 Data Catalog](https://developers.cloudflare.com/basin-catalog/) if they do not already exist. Validation errors during setup prompt you to retry inline rather than restarting the entire process. For a full walkthrough, refer to the [Getting started guide](https://developers.cloudflare.com/basin-pipelines/getting-started/). ```json {"@context":"https://schema.org","@type":"BlogPosting","@id":"https://developers.cloudflare.com/changelog/post/2026-02-24-typed-bindings-setup-improvements-error-metrics/#page","headline":"Dropped event metrics, typed Pipelines bindings, and improved setup","description":"Monitor dropped events in the dashboard and via GraphQL, generate schema-aware TypeScript types for pipeline bindings, and set up pipelines faster with Simple mode.","url":"https://developers.cloudflare.com/changelog/post/2026-02-24-typed-bindings-setup-improvements-error-metrics/","inLanguage":"en","image":"https://developers.cloudflare.com/changelog/post/2026-02-24-typed-bindings-setup-improvements-error-metrics/og.png?v=bf5afc18d0454c86","dateModified":"2026-02-24","datePublished":"2026-02-24","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. Build, secure, and scale without managing infrastructure","url":"https://www.cloudflare.com/","sameAs":["https://github.com/cloudflare","https://www.linkedin.com/company/cloudflare","https://x.com/cloudflare"],"logo":{"@type":"ImageObject","url":"https://developers.cloudflare.com/logo.svg"},"address":{"@type":"PostalAddress","streetAddress":"101 Townsend St","addressLocality":"San Francisco","addressRegion":"CA","postalCode":"94107","addressCountry":"US"},"contactPoint":[{"@type":"ContactPoint","contactType":"Customer Support","url":"https://support.cloudflare.com/","availableLanguage":["English"]},{"@type":"ContactPoint","contactType":"Sales","url":"https://www.cloudflare.com/contact/","availableLanguage":["English"]}]},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}} ```