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https://github.com/aoudiamoncef/apollo-client-maven-plugin
Generate a Java/Kotlin GraphQL client based on introspection data and predefined queries.
https://github.com/aoudiamoncef/apollo-client-maven-plugin
apollo apollo-client apollographql graphql graphql-client graphql-java graphql-query-builder graphql-tools maven-plugin query-builder query-generator
Last synced: about 2 months ago
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Generate a Java/Kotlin GraphQL client based on introspection data and predefined queries.
- Host: GitHub
- URL: https://github.com/aoudiamoncef/apollo-client-maven-plugin
- Owner: aoudiamoncef
- License: mit
- Fork: true (Cox-Automotive/apollo-client-maven-plugin)
- Created: 2019-01-26T00:42:56.000Z (almost 6 years ago)
- Default Branch: main
- Last Pushed: 2024-09-13T18:15:20.000Z (2 months ago)
- Last Synced: 2024-09-18T18:32:20.376Z (about 2 months ago)
- Topics: apollo, apollo-client, apollographql, graphql, graphql-client, graphql-java, graphql-query-builder, graphql-tools, maven-plugin, query-builder, query-generator
- Language: Kotlin
- Homepage:
- Size: 325 KB
- Stars: 91
- Watchers: 5
- Forks: 28
- Open Issues: 3
-
Metadata Files:
- Readme: README.adoc
- Contributing: CONTRIBUTING.adoc
- License: COPYING
- Code of conduct: CODE_OF_CONDUCT.adoc
Awesome Lists containing this project
README
= Apollo GraphQL Client Code Generation Maven Plugin
:project-owner: aoudiamoncef
:project-name: apollo-client-maven-plugin
:project-groupId: com.github.aoudiamoncef
:project-artifactId: apollo-client-maven-plugin-parent
:project-version: 7.0.0
image:https://github.com/{project-owner}/{project-name}/workflows/Build/badge.svg["Build Status",link="https://github.com/{project-owner}/{project-name}/actions"]
image:https://img.shields.io/maven-central/v/{project-groupId}/{project-artifactId}.svg[Download,link="https://search.maven.org/#search|ga|1|g:{project-groupId} AND a:{project-artifactId}"]
image:https://snyk.io/test/github/{project-owner}/{project-name}/badge.svg[Known Vulnerabilities,link=https://snyk.io/test/github/{project-owner}/{project-name}]
image:https://img.shields.io/badge/License-MIT-yellow.svg[License: MIT,link=https://opensource.org/licenses/MIT]
Maven plugin that calls the https://github.com/apollographql/apollo-kotlin[Apollo Kotlin compiler] to generate your Java/Kotlin sources.
== Usage
* A simple usage example can be found in https://github.com/{project-owner}/{project-name}/tree/main/apollo-client-maven-plugin-tests[plugin tests].
* A complete project with https://github.com/{project-owner}/spring-boot-apollo-graphql[Spring Boot].
=== Apollo 2 support
* Go to support https://github.com/aoudiamoncef/apollo-client-maven-plugin/tree/support/apollo-2[branch].
=== Getting Started
. Add the apollo runtime library to your project's dependencies:
+
[source,xml]
----
com.apollographql.apollo3
apollo-runtime
3.8.2
----
. Add the code generator plugin to your project's build:
+
[source,xml,subs="attributes+"]
----
com.github.aoudiamoncef
apollo-client-maven-plugin
{project-version}
generate
example
com.example.graphql.client
----
. Create a file `src/main/graphql/SERVICE_NAME/schema.json` with the JSON results of an https://gist.github.com/aoudiamoncef/a59527016e16a2d56309d62e01ff2348[introspection query], OR you can automatically generate this file by setting `introspection.enabled` to true and `endpointUrl` to your GraphQL endpoint.
At build time, the plugin will query the server and install this file per the value of `schemaFile`.
. Create files for each query you'd like to generate classes for under `src/main/graphql/SERVICE_NAME`:
.. Query file names must match the name of the query they contain
.. Query files must end with `.graphql` OR `.gql` by default.
.. Any subdirectories under `src/main/graphql/SERVICE_NAME` are treated as extra package names to append to `schemaPackageName` in the plugin config.
. Run `mvn generate-sources` to generate classes for your queries.
. If you run into compilation issues such as `package com.apollographql.apollo3.api does not exist`, you may need to explicitly add the following runtime libraries to your pom.xml
+
[source,xml]
---
com.apollographql.apollo3
apollo-api-jvm
3.8.2
com.apollographql.apollo3
apollo-runtime-jvm
3.8.2
---
=== Configuration Options
All plugin configuration properties and their defaults:
[source,xml]
----
true
true
false
${project.basedir}/src/main/graphql/lahzouz
${project.basedir}/src/main/graphql/lahzouz/schema.json
**/*.graphql
**/*.gql
**/*.json
**/*.sdl"
lahzouz
${project.build.directory}/generated-sources/graphql-client/lahzouz/
${project.build.directory}/generated-sources/graphql-client/lahzouz/test/
${project.build.directory}/generated-sources/graphql-client/lahzouz/debug/
false
${project.basedir}/src/main/graphql/lahzouz/
persistedQueryManifest
com.lahzouz.apollo.graphql.client
com.lahzouz.apollo.graphql.client
OPERATION
true
false
false
false
false
false
false
true
false
false
false
false
false
NONE
true
JAVA
${project.build.directory}/generated/metadata/apollo/lahzouz/metadata.json
false
${project.basedir}/src/main/graphql/lahzouz/schema.json
10
10
10
false
false
false
lahzouz
----
==== Custom Types
To use https://www.apollographql.com/docs/kotlin/essentials/custom-scalars[custom Scalar Types] you need to
define mapping configuration then register your custom adapter:
[source,xml]
----
...
java.time.LocalDate
...
----
Implementation of a custom adapter for `java.time.LocalDate`:
[source,java]
----
import com.apollographql.apollo3.api.Adapter;
import com.apollographql.apollo3.api.CustomScalarAdapters;
import com.apollographql.apollo3.api.json.JsonReader;
import com.apollographql.apollo3.api.json.JsonWriter;
import org.jetbrains.annotations.NotNull;
import java.io.IOException;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
public class LocalDateGraphQLAdapter implements Adapter {
private static final DateTimeFormatter dateFormatter = DateTimeFormatter.ISO_DATE;
@Override
public LocalDate fromJson(@NotNull final JsonReader reader, @NotNull final CustomScalarAdapters customScalarAdapters) throws IOException {
String dateString = reader.nextString();
return LocalDate.parse(dateString, dateFormatter);
}
@Override
public void toJson(@NotNull final JsonWriter writer, @NotNull final CustomScalarAdapters customScalarAdapters, final LocalDate value) throws IOException {
writer.value(value.format(dateFormatter));
}
}
----
[source,xml]
----
...
java.time.LocalDate
new com.example.LocalDateGraphQLAdapter()
...
----
==== Test Sources
To generate sources for tests:
[source,xml]
----
...
false
true
example
${project.basedir}/target/generated-test-sources/apollo/example
${project.basedir}/target/generated-test-sources/apollo/example/debug
${project.basedir}/target/generated-test-sources/apollo/example/debug
...
----
=== Using Apollo Client
See https://www.apollographql.com/docs/kotlin/[documentation]