Redmine/Chiliproject Java API.

• Uses Redmine's REST API (don't forget to enable it in Redmine server settings).
• Does not require any plugins installed on Redmine/Chiliproject server.
• Runs on any standard Java 8+ platform (Android does not have standard Java).
• Supports HTTP proxy
• Supports GZipped responses from servers
• Uses SLF4J for logging. Provide your own SLF4J binding
• [Supported Redmine versions] (https://github.com/taskadapter/redmine-java-api/wiki/Redmine-versions-compatibility)
• Available in Maven Central (binary plus sources).

We recommend using a modern build system like Gradle to build this library locally. Gradle dependency:

dependencies {
    compile 'com.taskadapter:redmine-java-api:<current-version>'
}

Check the latest release version in Maven Central

You can also use some legacy system like Maven if you can't upgrade to Gradle for some reason.

Sample code.

Get list of issues

String uri = "https://www.hostedredmine.com";
String apiAccessKey = "somekey";
String projectKey = "taskconnector-test";
Integer queryId = null; // any

RedmineManager mgr = RedmineManagerFactory.createWithApiKey(uri, apiAccessKey);
List<Issue> issues = mgr.getIssueManager().getIssues(projectKey, queryId);
for (Issue issue : issues) {
    System.out.println(issue.toString());
}

Multi-values search for issues

Params params = new Params()
            .add("set_filter", "1")
            .add("f[]", "summary")
            .add("op[summary]", "~")
            .add("v[summary]", "another")
            .add("f[]", "description")
            .add("op[description]", "~")
            .add("v[description][]", "abc");

result = issueManager.getIssues(params);

Get related objects when retrieving issues

issue = issueManager.getIssueById(123, Include.journals, Include.relations, Include.attachments, 
                          Include.changesets, Include.watchers);
journals = issue.getJournals();

Create an issue

Issue issue = IssueFactory.createWithSubject("test123");
Version ver = VersionFactory.create(512);
issue.setTargetVersion(ver);
IssueCategory cat = IssueCategoryFactory.create(673);
issue.setCategory(cat);
ProjectManager projectManager = manager.getProjectManager();
Project projectByKey = projectManager.getProjectByKey("testid");
issue.setProject(projectByKey);
manager.getIssueManager().createIssue(issue);

Get issue by Id

Issue retrievedIssue = issueManager.getIssueById(123);

Set custom field value on issue

Issue issue = ...
List<CustomFieldDefinition> customFieldDefinitions = mgr.getCustomFieldManager().getCustomFieldDefinitions();
// sample implementation for getCustomFieldByName() is in CustomFieldResolver (test class).
// in prod code you would typically know the custom field name or id already 
CustomFieldDefinition customField1 = getCustomFieldByName(customFieldDefinitions, "my_custom_1");
String custom1Value = "some value 123";
issue.addCustomField(CustomFieldFactory.create(customField1.getId(), customField1.getName(), custom1Value));
issueManager.update(issue);

Get all projects

List<Project> projects = mgr.getProjectManager().getProjects();

Free-form search for users

Map<String, String> params = new HashMap<>();
params.put("name", name);
List<User> list = userManager.getUsers(params);

Create a group and add user to it

Group template = GroupFactory.create("group " + System.currentTimeMillis());
Group group = userManager.createGroup(template);
User newUser = userManager.createUser(UserGenerator.generateRandomUser());
userManager.addUserToGroup(newUser, group);

Delete user

userManager.deleteUser(123);

Get time entries

TimeEntryManager timeEntryManager = redmineManager.getTimeEntryManager();
final Map<String, String> params = new HashMap<>();
params.put("project_id", projectId);
params.put("activity_id", activityId);
final List<TimeEntry> elements = timeEntryManager.getTimeEntries(params);