109 lines
3.9 KiB
Markdown
109 lines
3.9 KiB
Markdown
---
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stage: Manage
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group: Authentication and Authorization
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
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---
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# Query users with GraphQL **(FREE)**
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This page describes how you can use the GraphiQL explorer to query users.
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You can run the same query directly via a HTTP endpoint, using `cURL`. For more information, see our
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guidance on getting started from the [command line](getting_started.md#command-line).
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The [example users query](#set-up-the-graphiql-explorer) looks for a subset of users in
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a GitLab instance either by username or
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[Global ID](../../development/api_graphql_styleguide.md#global-ids).
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The query includes:
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- [`pageInfo`](#pageinfo)
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- [`nodes`](#nodes)
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## `pageInfo`
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This contains the data needed to implement pagination. GitLab uses cursor-based
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[pagination](getting_started.md#pagination). For more information, see
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[Pagination](https://graphql.org/learn/pagination/) in the GraphQL documentation.
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## `nodes`
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In a GraphQL query, `nodes` is used to represent a collection of [`nodes` on a graph](https://en.wikipedia.org/wiki/Vertex_(graph_theory)).
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In this case, the collection of nodes is a collection of `User` objects. For each one,
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we output:
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- Their user's `id`.
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- The `membership` fragment, which represents a Project or Group membership belonging
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to that user. Outputting a fragment is denoted with the `...memberships` notation.
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The GitLab GraphQL API is extensive and a large amount of data for a wide variety of entities can be output.
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See the official [reference documentation](reference/index.md) for the most up-to-date information.
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## Set up the GraphiQL explorer
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This procedure presents a substantive example that you can copy and paste into GraphiQL
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explorer. GraphiQL explorer is available for:
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- GitLab.com users at [https://gitlab.com/-/graphql-explorer](https://gitlab.com/-/graphql-explorer).
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- Self-managed users at `https://gitlab.example.com/-/graphql-explorer`.
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1. Copy the following code excerpt:
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```graphql
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{
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users(usernames: ["user1", "user3", "user4"]) {
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pageInfo {
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endCursor
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startCursor
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hasNextPage
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}
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nodes {
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id
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username,
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publicEmail
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location
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webUrl
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userPermissions {
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createSnippet
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}
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}
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}
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}
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```
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1. Open the [GraphiQL explorer tool](https://gitlab.com/-/graphql-explorer).
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1. Paste the `query` listed above into the left window of your GraphiQL explorer tool.
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1. Select **Play** to get the result shown here:
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NOTE:
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[The GraphQL API returns a GlobalID, rather than a standard ID.](getting_started.md#queries-and-mutations) It also expects a GlobalID as an input rather than
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a single integer.
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This GraphQL query returns the specified information for the three users with the listed username. Since the GraphiQL explorer uses the session token to authorize access to resources,
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the output is limited to the projects and groups accessible to the currently authenticated user.
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If you've signed in as an instance administrator, you would have access to all records, regardless of ownership.
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If you are signed in as an administrator, you can show just the matching administrators on the instance by adding the `admins: true` parameter to the query changing the second line to:
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```graphql
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users(usernames: ["user1", "user3", "user4"], admins: true) {
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...
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}
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```
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Or you can just get all of the administrators:
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```graphql
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users(admins: true) {
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...
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}
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```
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For more information on:
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- GraphQL specific entities, such as Fragments and Interfaces, see the official
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[GraphQL documentation](https://graphql.org/learn/).
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- Individual attributes, see the [GraphQL API Resources](reference/index.md).
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