# HttpDataSource.RequestProperties
# HttpDataSource.RequestProperties
Artifact:[androidx.media3:media3-datasource](https://developer.android.com/jetpack/androidx/releases/media3)
[View Source](https://cs.android.com/search?q=file:androidx/media3/datasource/HttpDataSource.java+class:androidx.media3.datasource.HttpDataSource.RequestProperties)
*** ** * ** ***
Kotlin\|[Java](https://developer.android.com/reference/androidx/media3/datasource/HttpDataSource.RequestProperties "View this page in Java")
```
@UnstableApi
class HttpDataSource.RequestProperties
```
*** ** * ** ***
Stores HTTP request properties (aka HTTP headers) and provides methods to modify the headers in a thread safe way to avoid the potential of creating snapshots of an inconsistent or unintended state.
## Summary
| ### Public constructors |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|
| [RequestProperties](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#RequestProperties())`()` |
| ### Public functions |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `synchronized `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [clear](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#clear())`()` Clears all request properties. |
| `synchronized `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [clearAndSet](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#clearAndSet(java.util.Map))`(properties: (`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!)` Removes all properties previously existing and sets the keys and values of the map. |
| `synchronized (`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!` | [getSnapshot](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#getSnapshot())`()` Gets a snapshot of the request properties. |
| `synchronized `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [remove](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#remove(java.lang.String))`(name: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!)` Removes a request property by name. |
| `synchronized `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [set](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#set(java.util.Map))`(properties: (`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!)` Sets the keys and values contained in the map. |
| `synchronized `[Unit](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html) | [set](https://developer.android.com/reference/kotlin/androidx/media3/datasource/HttpDataSource.RequestProperties#set(java.lang.String,java.lang.String))`(name: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, value: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!)` Sets the specified property`value`for the specified`name`. |
## Public constructors
### RequestProperties
```
RequestProperties()
```
## Public functions
### clear
```
synchronized fun clear(): Unit
```
Clears all request properties.
### clearAndSet
```
synchronized fun clearAndSet(properties: (Mutable)Map!): Unit
```
Removes all properties previously existing and sets the keys and values of the map.
| Parameters |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|
| `properties: (`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!` | The request properties. |
### getSnapshot
```
synchronized fun getSnapshot(): (Mutable)Map!
```
Gets a snapshot of the request properties.
| Returns |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------|
| `(`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!` | A snapshot of the request properties. |
### remove
```
synchronized fun remove(name: String!): Unit
```
Removes a request property by name.
| Parameters |
|----------------------------------------------------------------------------------------------|---------------------------------------------|
| `name: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!` | The name of the request property to remove. |
### set
```
synchronized fun set(properties: (Mutable)Map!): Unit
```
Sets the keys and values contained in the map. If a property previously existed, the old value is replaced by the specified value. If a property previously existed and is not in the map, the property is left unchanged.
| Parameters |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|
| `properties: (`[Mutable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-mutable-map/index.html)`)`[Map](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.collections/-map/index.html)`<`[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!, `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!>!` | The request properties. |
### set
```
synchronized fun set(name: String!, value: String!): Unit
```
Sets the specified property`value`for the specified`name`. If a property for this name previously existed, the old value is replaced by the specified value.
| Parameters |
|-----------------------------------------------------------------------------------------------|------------------------------------|
| `name: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!` | The name of the request property. |
| `value: `[String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)`!` | The value of the request property. |