Generics Type 'T' does not conform to protocol 'Encodable'
I am trying to use generics in swift to intrepret http response. All The Json responses have the same signature at the top :
{
"request": "foo",
"result": "[{},{}....]
}
So I am using this :
public struct HttpResponse<DATA: Codable> {
public let request: Bool?
public let result: DATA?
enum CodingKeys: String, CodingKey {
case request= "request"
case result = "result"
} ..
In My Network layer:
final class Network<T: Decodable> {
func getItems(_ path: String) -> Observable<HttpResponse<[T]>> {
let absolutePath = "(endPoint)/(path)"
return RxAlamofire
.data(.get, absolutePath)
.debug()
.observeOn(scheduler)
.map({ data -> [T] in
return try JSONDecoder().decode([T].self, from: data)
})
}
I get this error in Observable<PlutusResponse<[T]>>
Generics Type 'T' does not conform to protocol 'Encodable'
How to correctly use this?
swift codable
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
add a comment |
I am trying to use generics in swift to intrepret http response. All The Json responses have the same signature at the top :
{
"request": "foo",
"result": "[{},{}....]
}
So I am using this :
public struct HttpResponse<DATA: Codable> {
public let request: Bool?
public let result: DATA?
enum CodingKeys: String, CodingKey {
case request= "request"
case result = "result"
} ..
In My Network layer:
final class Network<T: Decodable> {
func getItems(_ path: String) -> Observable<HttpResponse<[T]>> {
let absolutePath = "(endPoint)/(path)"
return RxAlamofire
.data(.get, absolutePath)
.debug()
.observeOn(scheduler)
.map({ data -> [T] in
return try JSONDecoder().decode([T].self, from: data)
})
}
I get this error in Observable<PlutusResponse<[T]>>
Generics Type 'T' does not conform to protocol 'Encodable'
How to correctly use this?
swift codable
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
add a comment |
I am trying to use generics in swift to intrepret http response. All The Json responses have the same signature at the top :
{
"request": "foo",
"result": "[{},{}....]
}
So I am using this :
public struct HttpResponse<DATA: Codable> {
public let request: Bool?
public let result: DATA?
enum CodingKeys: String, CodingKey {
case request= "request"
case result = "result"
} ..
In My Network layer:
final class Network<T: Decodable> {
func getItems(_ path: String) -> Observable<HttpResponse<[T]>> {
let absolutePath = "(endPoint)/(path)"
return RxAlamofire
.data(.get, absolutePath)
.debug()
.observeOn(scheduler)
.map({ data -> [T] in
return try JSONDecoder().decode([T].self, from: data)
})
}
I get this error in Observable<PlutusResponse<[T]>>
Generics Type 'T' does not conform to protocol 'Encodable'
How to correctly use this?
swift codable
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
I am trying to use generics in swift to intrepret http response. All The Json responses have the same signature at the top :
{
"request": "foo",
"result": "[{},{}....]
}
So I am using this :
public struct HttpResponse<DATA: Codable> {
public let request: Bool?
public let result: DATA?
enum CodingKeys: String, CodingKey {
case request= "request"
case result = "result"
} ..
In My Network layer:
final class Network<T: Decodable> {
func getItems(_ path: String) -> Observable<HttpResponse<[T]>> {
let absolutePath = "(endPoint)/(path)"
return RxAlamofire
.data(.get, absolutePath)
.debug()
.observeOn(scheduler)
.map({ data -> [T] in
return try JSONDecoder().decode([T].self, from: data)
})
}
I get this error in Observable<PlutusResponse<[T]>>
Generics Type 'T' does not conform to protocol 'Encodable'
How to correctly use this?
swift codable
swift codable
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
edited Nov 17 '18 at 20:47
Mohamed ALOUANE
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
asked Nov 17 '18 at 20:27
Mohamed ALOUANEMohamed ALOUANE
2,39821640
2,39821640
add a comment |
add a comment |
1 Answer
1
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oldest
votes
There is a mismatch:
It should be HttpResponse<DATA: Decodable> instead of HttpResponse<DATA: Codable>, see definition Network<T: Decodable>.
Codable declares conformance to both Decodable and Encodable protocols, see the definition of Codable:
public typealias Codable = Decodable & Encodable
So your HttpResponse expects a generic that conforms to both Decodable and Encodable protocol. But in the definition of Network a generic that conforms only to Decodable is used. Therefore as soon as the compiler checks the method signature of getItems, it complains that 'T' does not conform to protocol 'Encodable'.
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
There is a mismatch:
It should be HttpResponse<DATA: Decodable> instead of HttpResponse<DATA: Codable>, see definition Network<T: Decodable>.
Codable declares conformance to both Decodable and Encodable protocols, see the definition of Codable:
public typealias Codable = Decodable & Encodable
So your HttpResponse expects a generic that conforms to both Decodable and Encodable protocol. But in the definition of Network a generic that conforms only to Decodable is used. Therefore as soon as the compiler checks the method signature of getItems, it complains that 'T' does not conform to protocol 'Encodable'.
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
add a comment |
There is a mismatch:
It should be HttpResponse<DATA: Decodable> instead of HttpResponse<DATA: Codable>, see definition Network<T: Decodable>.
Codable declares conformance to both Decodable and Encodable protocols, see the definition of Codable:
public typealias Codable = Decodable & Encodable
So your HttpResponse expects a generic that conforms to both Decodable and Encodable protocol. But in the definition of Network a generic that conforms only to Decodable is used. Therefore as soon as the compiler checks the method signature of getItems, it complains that 'T' does not conform to protocol 'Encodable'.
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
add a comment |
There is a mismatch:
It should be HttpResponse<DATA: Decodable> instead of HttpResponse<DATA: Codable>, see definition Network<T: Decodable>.
Codable declares conformance to both Decodable and Encodable protocols, see the definition of Codable:
public typealias Codable = Decodable & Encodable
So your HttpResponse expects a generic that conforms to both Decodable and Encodable protocol. But in the definition of Network a generic that conforms only to Decodable is used. Therefore as soon as the compiler checks the method signature of getItems, it complains that 'T' does not conform to protocol 'Encodable'.
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
There is a mismatch:
It should be HttpResponse<DATA: Decodable> instead of HttpResponse<DATA: Codable>, see definition Network<T: Decodable>.
Codable declares conformance to both Decodable and Encodable protocols, see the definition of Codable:
public typealias Codable = Decodable & Encodable
So your HttpResponse expects a generic that conforms to both Decodable and Encodable protocol. But in the definition of Network a generic that conforms only to Decodable is used. Therefore as soon as the compiler checks the method signature of getItems, it complains that 'T' does not conform to protocol 'Encodable'.
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
edited Nov 17 '18 at 21:18
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
answered Nov 17 '18 at 20:59
Stephan SchlechtStephan Schlecht
4,8201810
4,8201810
add a comment |
add a comment |
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