Headers (gateway 4.0.1 API)

java.lang.Object
- pl.gsmservice.gateway.utils.Headers

```
public final class Headers
extends java.lang.Object
```
Encapsulates HTTP headers. Header names are case-insensitive.

Field Summary

Fields
Modifier and Type Field Description

static Headers EMPTY

Constructor Summary

Constructors
Constructor Description

Headers()

Headers(java.util.Map<java.lang.String,java.util.List<java.lang.String>> headers)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Headers`	`add(java.lang.String name, java.lang.String value)`	Appends a header value.
`Headers`	`add(Headers headers)`
`java.util.Optional<java.lang.String>`	`first(java.lang.String name)`	Returns the first value for a header name.
`void`	`forEach(java.util.function.BiConsumer<? super java.lang.String,? super java.util.List<java.lang.String>> consumer)`
`java.util.List<java.lang.String>`	`get(java.lang.String name)`	Returns all values for a header name.
`java.util.Map<java.lang.String,java.util.List<java.lang.String>>`	`map()`	Returns a copy of the headers as a map.
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail
- EMPTY
```
public static final Headers EMPTY
```

Constructor Detail

Headers

public Headers(java.util.Map<java.lang.String,java.util.List<java.lang.String>> headers)

Headers
```
public Headers()
```

Method Detail
- get
```
public java.util.List<java.lang.String> get(java.lang.String name)
```
  Returns all values for a header name. Header name is case-insensitive.
  
  Parameters:
  
  name - header name
  
  Returns:
  
  all values for the header name
- first
```
public java.util.Optional<java.lang.String> first(java.lang.String name)
```
  Returns the first value for a header name. Header name is case-insensitive.
  
  Parameters:
  
  name - header name
  
  Returns:
  
  the first value for the header name
- add
```
public Headers add(java.lang.String name,
                   java.lang.String value)
```
  Appends a header value. Header name is case-insensitive.
  
  Parameters:
  
  name - header name
  
  value - header value
  
  Returns:
  
  this
- add
```
public Headers add(Headers headers)
```
- forEach
```
public void forEach(java.util.function.BiConsumer<? super java.lang.String,? super java.util.List<java.lang.String>> consumer)
```
- map
```
public java.util.Map<java.lang.String,java.util.List<java.lang.String>> map()
```
  Returns a copy of the headers as a map. Header names are lowercase.
  
  Returns:
  
  headers as a map
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object