# Memometrici
## YouTrack API (useful links)
<YouTrack Service URL> is the Base URL of the YouTrack service in your network environment.
[Fields Syntax
](https://www.jetbrains.com/help/youtrack/standalone/api-fields-syntax.html) In YouTrack REST API, when you send an HTTP request to a resource, by default, the server sends back only the ID of the resource entity. To receive an attribute in the response from server, you must specify it explicitly in the fields parameter of a request.
[Custom fields](https://www.jetbrains.com/help/youtrack/standalone/api-concept-custom-fields.html) This page describes the hierarchy of custom fields in YouTrack and how the CustomField, ProjectCustomField, and IssueCustomField entities differ from each other.
[JSON schema](https://www.jetbrains.com/help/youtrack/standalone/api-json-schema.html) This page contains all of the entities that are supported by YouTrack REST API.
______
## Entities
[Entities](https://www.jetbrains.com/help/youtrack/standalone/api-entities.html) This section contains the current version of the generated REST API entities reference.
[TimeTrackingUserProfile](https://www.jetbrains.com/help/youtrack/standalone/api-entity-TimeTrackingUserProfile.html) Represents time tracking settings in the user's profile.
[UserGroup](https://www.jetbrains.com/help/youtrack/standalone/api-entity-UserGroup.html) Represents a group of users.
[ProjectTimeTrackingSettings
](https://www.jetbrains.com/help/youtrack/standalone/api-entity-ProjectTimeTrackingSettings.html) Represents time tracking settings of the project.
______
## JSON Schema
### GlobalTimeTrackingSettings
```
"GlobalTimeTrackingSettings" : {
"workItemTypes" : "MutableList",
"workTimeSettings": "WorkTimeSettings",
"id" : "String"
}
```
### IssueTimeTracker
```
"IssueTimeTracker" : {
"enabled" : "Boolean",
"workItems" : "MutableCollection",
"id" : "String"
}
```
###IssueCreatedActivityItem
```
"IssueCreatedActivityItem" : {
"container" : "Issue",
"id" : "String",
"target" : "Issue",
"added" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"removed" : "List",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### LinksActivityItem
```
"LinksActivityItem" : {
"added" : "List",
"removed" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### ProjectTimeTrackingSettings
```
"ProjectTimeTrackingSettings" : {
"enabled" : "Boolean",
"estimate" : "ProjectCustomField",
"project" : "Project",
"timeSpent" : "ProjectCustomField",
"workItemTypes" : "MutableCollection",
"id" : "String"
}
```
### TagsActivityItem
```
"TagsActivityItem" : {
"added" : "List",
"removed" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### TimeTrackingUserProfile
```
"TimeTrackingUserProfile" : {
"id" : "String",
"periodFormat" : "PeriodFieldFormat",
"profile" : "TimeTrackingUserProfile"
}
```
### AttachmentActivityItem
```
"AttachmentActivityItem" : {
"added" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"removed" : "List",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### CommentActivityItem
```
"CommentActivityItem" : {
"authorGroup" : "UserGroup",
"added" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"removed" : "List",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### CommentAttachmentsActivityItem
```
"CommentAttachmentsActivityItem" : {
"added" : "List",
"removed" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### CustomFieldActivityItem
```
"CustomFieldActivityItem" : {
"added" : "Any",
"removed" : "Any",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### DurationValue
```
"DurationValue" : {
"id" : "String",
"minutes" : "Int",
"presentation" : "String"
}
```
###PeriodFieldFormat
```
"PeriodFieldFormat" : {
"enumConstantName" : "String",
"id" : "String"
}
```
### PeriodProjectCustomField
```
"PeriodProjectCustomField" : {
"canBeEmpty" : "Boolean",
"emptyFieldText" : "String",
"field" : "CustomField",
"hasRunningJob" : "Boolean",
"id" : "String",
"isPublic" : "Boolean",
"ordinal" : "Int",
"project" : "Project"
}
```
### PeriodValue
```
"PeriodValue" : {
"id" : "String",
"minutes" : "Int",
"presentation" : "String"
}
```
### ProjectActivityItem
```
"ProjectActivityItem" : {
"added" : "",
"removed" : "",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### SimpleValueActivityItem
```
"SimpleValueActivityItem" : {
"added" : "",
"removed" : "",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### Sprint
```
"Sprint" : {
"agile" : "Agile",
"archived" : "Boolean",
"finish" : "Long",
"goal" : "String",
"isDefault" : "Boolean",
"issues" : "MutableCollection",
"name" : "String",
"previousSprint" : "Sprint",
"start" : "Long",
"unresolvedIssuesCount" : "Int",
"id" : "String"
}
```
### SprintActivityItem
```
"SprintActivityItem" : {
"added" : "List",
"id" : "String",
"removed" : "List",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### TextCustomFieldActivityItem
```
"TextCustomFieldActivityItem" : {
"added" : "String",
"markup" : "String",
"removed" : "String",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### TextMarkupActivityItem
```
"TextMarkupActivityItem" : {
"added" : "String",
"removed" : "String",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"markup" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### TimeTrackingUserProfile
```
"TimeTrackingUserProfile" : {
"id" : "String",
"periodFormat" : "PeriodFieldFormat",
"profile" : "TimeTrackingUserProfile"
}
```
### User
```
"User" : {
"avatarUrl" : "String",
"banned" : "Boolean",
"email" : "String",
"fullName" : "String",
"guest" : "Boolean",
"jabberAccountName" : "String",
"login" : "String",
"name" : "String",
"online" : "Boolean",
"ringId" : "String",
"savedQueries" : "List",
"tags" : "MutableCollection",
"id" : "String"
}
```
### UserGroup
```
"UserGroup" : {
"allUsersGroup" : "Boolean",
"icon" : "String",
"name" : "String",
"ringId" : "String!",
"teamForProject" : "Project",
"usersCount" : "Long",
"id" : "String"
}
```
### UsesMarkupActivityItem
```
"UsesMarkupActivityItem" : {
"added" : "Boolean",
"removed" : "Boolean",
"author" : "User",
"category" : "ActivityCategory",
"field" : "",
"id" : "String",
"markup" : "String",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
### VcsChangeActivityItem
```
"VcsChangeActivityItem" : {
"added" : "List",
"author" : "User",
"id" : "String",
"removed" : "List",
"category" : "ActivityCategory",
"field" : "",
"target" : "",
"targetMember" : "String",
"timestamp" : "Long"
}
```
###