Grafana query methods. Boost your data filtering and visualization skills today.
Grafana query methods Write a PromQL query using the Query Builder Now that you have defined the requirements for your visualization, it’s time to write the query. A PromQL query consists of three basic elements: Metric: A metric represents the specific time series data you want to analyze. Mar 31, 2020 · Hi there, I’m using the Micrometer library within my SpringBoot app. When you add a new panel, you'll see an option to "Query" or "Add query". The data source is a plugin that controls how the data is fetched. Before queries are sent to your data source the query is interpolated, meaning the variable is replaced with its current value. Having a look through the source GitHub - grafana/grafana-infinity-datasource Mar 31, 2021 · Trying to emulate and extend the sample streaming data source plugin, using WebSockets and rxJs Observables. k6 adds tags to the requests, making it easier to filter results. Apr 12, 2025 · Learn how to integrate Grafana with Elasticsearch to build advanced logs and metrics dashboards, enhancing your Elastic Stack observability with powerful visualizations and real-time analytics. Oct 31, 2021 · I also wonder if you are able to try to see if the 405 comes from nginx / prom (we don't think Grafana directly sends this) by access those directly? (e. This guide explains why you may want to add resource handlers and some common ways for doing so. libsonnet and regenerate the dashboard following the instructions in the mixin repository. Don't sweat it! The core of any Grafana visualization is the query. A query is a question written in the query language used by the data source. Configure authentication and authorization You can configure various methods to allow users to access your Grafana Cloud instance. They allow you to retrieve, filter, and transform data from various sources before displaying it in panels and dashboards. Upsample - The method to use to fill a window sample that has no data points. 5, Linux Ubuntu (WSL on Windows 10) What are you trying to achieve? I have written my backend datasource plugin (with streaming) using the Grafana Plugin SDK for Go. Named capture groups in the regex support adding data into the extracted map. You can select a data source and then use the editor to write and customize your queries. Is there a way to adjust the PromQL query so it returns the correct data based on the selected time range? I’ve tried several approaches, but the query always returns the cumulative value of all requests. A query variable is a type of variable that allows you to query a data source for the values. , the default letter A or B). pad fills with the last know value backfill with next known value fillna to fill empty sample windows with NaNs Write an expression If your data source supports them, then Grafana displays the Expression button and shows any existing expressions in the query editor list. During interpolation, the variable value might be escaped in order to conform to the syntax of the query language and where it is used. Types of expressions Expressions work with two types of data. How are you trying to achieve it? I have implemented the QueryData, RunStream, SubscribeStream and PublishStream methods for both streaming and non Feb 5, 2025 · In Grafana, every data source comes with a query editor that lets you specify the data you want. Once your data is in place, you can visualize it to gain valuable insights that help you tackle real-world challenges. Using transformations, you can: Rename fields Join time series/SQL-like data Perform mathematical operations across queries Use the output of one transformation as the input to another transformation With the Infinity datasource, you can also scrap data from any GraphQL endpoints. Choose an authentication method Configure your data source plugin to authenticate against a third-party API in one of either of two ways: Use the data source proxy method, or Build a plugin backend component. Grafana supports up to 26 queries per panel. POST is recommended and selected by default, as it supports larger queries. PATCH /api/query-history/P8zM2I1nz HTTP/1. You can configure query frequency and data collection limits in the panel’s data source options. For the most up-to-date reference of all supported SQL functionality, refer to the allowedNode and allowedFunction definitions in the Grafana codebase. Nov 21, 2023 · I’ve created several queries using nearly the same pattern. There is also an OpenAPI v3 specification (generated by the v2 one). Uses of resource handlers The primary way for a data source to retrieve data from a backend is through the query method If you want to get started quickly with CSV and Grafana, please read How to Visualize CSV Data with Grafana, which uses the recommended approach. To learn more about working with data sources in Grafana, check Grafana maintains a complete list of supported SQL keywords, operators, and functions in the SQL expressions query validator implementation. HTTP API details are specified using OpenAPI v2. Connect and visualize data Discover the various methods for sending or connecting data to Grafana Cloud. Unable to return an Observable from the query method. It uses the job=node selector to query metrics. The query editor for the CSV data source consists of a number of tabs. g. Define the HTTP requests and methods you want to use. Because the Infinity data source lets you flexibly fetch any resource from any endpoint online that uses HTTP/HTTPS, our “data query” will be an HTTP GET request. Oct 23, 2025 · Getting Started: The Basics of a Grafana Query So, you've got Grafana fired up, you've connected a data source (yay!), and now you're staring at a blank panel, wondering what to type. You can customize tags as you wish. This is where the magic begins. It is the foundation of your query and Apr 10, 2024 · Howdy. Users can browser and try out both via the Swagger UI editor (served by the Nov 21, 2024 · Below is an illustrative image: What I need is to calculate the number of requests only within the selected time period in Grafana. About queries Grafana panels communicate with data sources using queries, which retrieve data for the visualization. Toggle on Series limit - Number of maximum returned series. 1 Accept: application/json Content-Type: application/json Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk { "comment": "Debugging query", } Each individual expression or query is represented by a variable that is a named identifier known as its RefID (e. But our example is quite Dec 7, 2024 · Discover how to effectively visualize and analyze complex data using Elasticsearch and Grafana's powerful data visualization capabilities. Jun 25, 2021 · What Grafana version and what operating system are you using? Grafana 7. Query Basics Introduction Queries are the foundation of data visualization in Grafana. Schema HTTP API reference The Grafana backend exposes an HTTP API, which is the same API that’s used by the frontend to do everything from saving dashboards, creating users, and updating data sources. Transform data Transformations are a powerful way to manipulate data returned by a query before the system applies a visualization. This works exactly in the same way as JSON API, but instead of using GET method used by the JSON API, this uses POST method with a body. g connect to prom and query directly, try grafana directly without nginx). Unfortunately I see the only configurable methods are GET and POST, but the other methods our backend service uses (PUT, DEL and PATCH) are not exposed. In the Grafana UI, queries are built using the query editor, which supports various data sources like Prometheus, MySQL, PostgreSQL, and others. 1 or older, or if your network restricts POST requests. Add authentication for data source plugins Grafana plugins can perform authenticated requests against a third-party API by using the data source proxy or through a custom a plugin backend. 5. Can anyone point me to a working method for increasing the query timeout from Grafana to Loki?. A query is an expression that specifies the dataset to be used in the visualization. Select GET if you’re using Prometheus version 2. Boost your data filtering and visualization skills today. By adding support for query variables to your data source plugin, users can create dynamic dashboards based on data from your data source. Type ‘Observable’ is not assignable to type ‘Promise | O… Aug 1, 2023 · What Grafana version and what operating system are you using? Grafana 9. If you need to use a different job selector, modify the selector in config. This library provides the metric http_server_requests_seconds_count, which returns the count of HTTP requests for a defined URI and its type is summa… Add resource handler for data source plugins You can add a resource handler to your data source backend to extend the Grafana HTTP API with your own data source-specific routes. In this guide, we'll explore the fundamental concepts May 20, 2025 · Query expressions in Grafonnet provide a powerful way to transform, manipulate, and analyze data from data sources within Grafana dashboards. This improvement gives you greater flexibility when interacting with APIs that require these methods, making it easier to work with a wider range of use cases. Data source queries return data that Grafana can transform and visualize. To authorize requests to Grafana Cloud resources that do not involve users you can use Grafana Cloud Access Policies. Mar 25, 2025 · The Infinity data source plugin now supports additional HTTP methods—PATCH, PUT, and DELETE—through the allowDangerousHTTPMethods configuration. Nov 29, 2024 · PromQL 101: Beginner Prometheus Query Examples With Grafana We’ve all been there: suddenly you need to learn a new technology, but there’s no time to study every single detail before you see Add authentication for data source plugins Grafana plugins can perform authenticated requests against a third-party API by using the data source proxy or through a custom a plugin backend. 7 + Debian 10 Buster inside a Docker container What are you trying to achieve? Containerized Grafana instance, able to spin up at a moment’s notice How are you trying to achieve it? Running a grafana instance inside a docker container with file-provisioned dashboards and a Prometheus data source - Available over Sep 17, 2024 · Learn how to effectively use regex in Grafana queries with this comprehensive guide. Each tab configures a part of the query Nov 4, 2025 · A practical guide to setting up Grafana Tempo, configuring key components, and understanding how to use tracing across your services. Understanding how queries work is essential for creating effective visualizations that provide meaningful insights from your data. They are part of Grafana's expression engine and allow for post-processing of query results directly within the dashboard, without needing to modify the original data source query. The replace stage is a parsing stage that parses a log line using a regular expression and replaces the log line. Nov 4, 2022 · The JSON API plugin in Grafana The Datasource configuration can be quite advanced, you can define many authentication methods, custom HTTP headers, and forward cookies. Each data source uses its own query language, and data source plugins each implement a query-building user interface called a query editor. One query obtains all the data according to the filters configured and the second one, apart from the filters the one has, uses one extra condition: to obtain t… Before queries are sent to your data source the query is interpolated, meaning the variable is replaced with its current value. This page explains what each part of the query editor does, and how you can configure it. Sep 16, 2024 · Hi, I’ve been using the Infinity datasource plugin to access REST API data in custom Grafana panels without having to expose the API keys of the backend service. Nov 29, 2024 · PromQL 101: Beginner Prometheus Query Examples With Grafana We’ve all been there: suddenly you need to learn a new technology, but there’s no time to study every single detail before you see HTTP method - Select either the POST or GET HTTP method to query your data source. 2. Label Extraction Methods Introduction Labels are a fundamental concept in Grafana Loki that help you organize, filter, and query your log data efficiently. While some labels are automatically attached to your logs during ingestion, Loki provides powerful methods to extract additional labels from the log content itself. You'll select your data source from a Grafana supports many types of data sources . To reference the output of an individual expression or a data source query in another expression, this identifier is used as a variable. ejgjbul4cisiet0ywz6p1jpaf9anoxpzbxao9yr0kktc