Swift Synchronous API calls
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I have to make three API calls to server one after another(synchronous),second API has to be called only if the first one is success. If first API fails then I have to to stop the flow and show another view controller with retry and cancel. What should I use and How should I do it?
objective-c swift grand-central-dispatch
asked 2 days ago
Revathi Bhavanam
11
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up vote
-3
down vote
favorite
I have to make three API calls to server one after another(synchronous),second API has to be called only if the first one is success. If first API fails then I have to to stop the flow and show another view controller with retry and cancel. What should I use and How should I do it?
objective-c swift grand-central-dispatch
asked 2 days ago
Revathi Bhavanam
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
3
There are more than one solutions to your problem. Here are some keywords that you should be looking for:NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)
– Alladinian
2 days ago
add a comment |
up vote
-3
down vote
favorite
up vote
-3
down vote
favorite
I have to make three API calls to server one after another(synchronous),second API has to be called only if the first one is success. If first API fails then I have to to stop the flow and show another view controller with retry and cancel. What should I use and How should I do it?
objective-c swift grand-central-dispatch
asked 2 days ago
Revathi Bhavanam
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have to make three API calls to server one after another(synchronous),second API has to be called only if the first one is success. If first API fails then I have to to stop the flow and show another view controller with retry and cancel. What should I use and How should I do it?
objective-c swift grand-central-dispatch
objective-c swift grand-central-dispatch
asked 2 days ago
Revathi Bhavanam
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
Revathi Bhavanam
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
Revathi Bhavanam
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
Revathi Bhavanam
11
asked 2 days ago
Revathi Bhavanam
11
11
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Revathi Bhavanam is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
3
There are more than one solutions to your problem. Here are some keywords that you should be looking for:NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)
– Alladinian
2 days ago
add a comment |
Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
3
There are more than one solutions to your problem. Here are some keywords that you should be looking for:NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)
– Alladinian
2 days ago
Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
3
3
There are more than one solutions to your problem. Here are some keywords that you should be looking for:
NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)– Alladinian
2 days ago
There are more than one solutions to your problem. Here are some keywords that you should be looking for:
NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)– Alladinian
2 days ago
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
Using TRVSURLSessionOperation would help you, here is how to do it:
let queue = OperationQueue()
let session = URLSession(configuration: URLSessionConfiguration.default)
let firstOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "first url")!)) { (data, response, error) in
// Your completion logic
}
let secondOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "second url")!)) { (data, response, error) in
// Your completion logic
}
secondOperation?.addDependency(firstOperation!)
queue.addOperations([firstOperation!, secondOperation!], waitUntilFinished: false)
answered 2 days ago
MuhammadBassio
1,364812
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
Using TRVSURLSessionOperation would help you, here is how to do it:
let queue = OperationQueue()
let session = URLSession(configuration: URLSessionConfiguration.default)
let firstOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "first url")!)) { (data, response, error) in
// Your completion logic
}
let secondOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "second url")!)) { (data, response, error) in
// Your completion logic
}
secondOperation?.addDependency(firstOperation!)
queue.addOperations([firstOperation!, secondOperation!], waitUntilFinished: false)
answered 2 days ago
MuhammadBassio
1,364812
add a comment |
up vote
0
down vote
Using TRVSURLSessionOperation would help you, here is how to do it:
let queue = OperationQueue()
let session = URLSession(configuration: URLSessionConfiguration.default)
let firstOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "first url")!)) { (data, response, error) in
// Your completion logic
}
let secondOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "second url")!)) { (data, response, error) in
// Your completion logic
}
secondOperation?.addDependency(firstOperation!)
queue.addOperations([firstOperation!, secondOperation!], waitUntilFinished: false)
answered 2 days ago
MuhammadBassio
1,364812
add a comment |
up vote
0
down vote
up vote
0
down vote
Using TRVSURLSessionOperation would help you, here is how to do it:
let queue = OperationQueue()
let session = URLSession(configuration: URLSessionConfiguration.default)
let firstOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "first url")!)) { (data, response, error) in
// Your completion logic
}
let secondOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "second url")!)) { (data, response, error) in
// Your completion logic
}
secondOperation?.addDependency(firstOperation!)
queue.addOperations([firstOperation!, secondOperation!], waitUntilFinished: false)
answered 2 days ago
MuhammadBassio
1,364812
Using TRVSURLSessionOperation would help you, here is how to do it:
let queue = OperationQueue()
let session = URLSession(configuration: URLSessionConfiguration.default)
let firstOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "first url")!)) { (data, response, error) in
// Your completion logic
}
let secondOperation = TRVSURLSessionOperation(session: session, request: URLRequest(url: URL(string: "second url")!)) { (data, response, error) in
// Your completion logic
}
secondOperation?.addDependency(firstOperation!)
queue.addOperations([firstOperation!, secondOperation!], waitUntilFinished: false)
answered 2 days ago
MuhammadBassio
1,364812
edited 2 days ago
answered 2 days ago
MuhammadBassio
1,364812
answered 2 days ago
MuhammadBassio
1,364812
answered 2 days ago
MuhammadBassio
1,364812
1,364812
add a comment |
add a comment |
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Use Operation Queue and manage the dependency using OperationQueue
– HPM
2 days ago
3
There are more than one solutions to your problem. Here are some keywords that you should be looking for:
NSOperation, GCD, futures & promises, async/await pattern. The way that Apple handles this is by operations that depend on other operations. Use of Promises is quite popular for these tasks and finally async/await maybe the cleanest (cognitive load wise) approach to promises (and what I would suggest you to check first)– Alladinian
2 days ago