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Add support of FTNetworkTracer #5

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d5fdb7b
feat: Add network tracing to GraphQLAPIAdapter
Nov 12, 2025
7a85a37
chore: Update FTNetworkTracer to 0.2.0
Nov 13, 2025
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9 changes: 9 additions & 0 deletions Package.resolved
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4 changes: 3 additions & 1 deletion Package.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,15 @@ let package = Package(
.package(
url: "https://github.com/apollographql/apollo-ios.git",
exact: "1.17.0" // Do not forget to download related to this version Apollo CLI and include it with package
)
),
.package(url: "https://github.com/futuredapp/FTNetworkTracer", from: "0.2.0")
],
targets: [
.target(
name: "GraphQLAPIKit",
dependencies: [
.product(name: "Apollo", package: "apollo-ios"),
.product(name: "FTNetworkTracer", package: "FTNetworkTracer")
]
)
]
Expand Down
115 changes: 98 additions & 17 deletions Sources/GraphQLAPIKit/GraphQLAPIAdapter.swift
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@@ -1,6 +1,7 @@
import Apollo
import ApolloAPI
import Foundation
import FTNetworkTracer

public protocol GraphQLAPIAdapterProtocol: AnyObject {
/// Fetches a query from the server
Expand All @@ -18,7 +19,7 @@ public protocol GraphQLAPIAdapterProtocol: AnyObject {
queue: DispatchQueue,
resultHandler: @escaping (Result<Query.Data, GraphQLAPIAdapterError>) -> Void
) -> Cancellable

/// Performs a mutation by sending it to the server.
///
/// - Parameters:
Expand All @@ -37,11 +38,14 @@ public protocol GraphQLAPIAdapterProtocol: AnyObject {

public final class GraphQLAPIAdapter: GraphQLAPIAdapterProtocol {
private let apollo: ApolloClientProtocol
private let networkTracer: FTNetworkTracer?
private let url: URL

public init(
url: URL,
urlSessionConfiguration: URLSessionConfiguration = .default,
defaultHeaders: [String: String] = [:]
defaultHeaders: [String: String] = [:],
networkTracer: FTNetworkTracer? = nil
) {
let provider = NetworkInterceptorProvider(
client: URLSessionClient(sessionConfiguration: urlSessionConfiguration),
Expand All @@ -57,32 +61,73 @@ public final class GraphQLAPIAdapter: GraphQLAPIAdapterProtocol {
networkTransport: networkTransport,
store: ApolloStore()
)

self.networkTracer = networkTracer
self.url = url
}

public func fetch<Query>(
query: Query,
context: RequestHeaders?,
queue: DispatchQueue,
resultHandler: @escaping (Result<Query.Data, GraphQLAPIAdapterError>) -> Void
) -> Cancellable where Query : GraphQLQuery {
apollo.fetch(
) -> Cancellable where Query: GraphQLQuery {
let requestId = UUID().uuidString
let startTime = Date()

// Log and track request
networkTracer?.logAndTrackRequest(
url: url.absoluteString,
operationName: Query.operationName,
query: Query.definition?.queryDocument ?? "",
variables: query.__variables,
headers: context?.additionalHeaders,
requestId: requestId
)

return apollo.fetch(
query: query,
cachePolicy: .fetchIgnoringCacheCompletely,
contextIdentifier: nil,
context: context,
queue: queue
) { result in
) { [weak self] result in
guard let self = self else { return }

switch result {
case .success(let result):
case let .success(result):
// Log and track response
self.networkTracer?.logAndTrackResponse(
url: self.url.absoluteString,
operationName: Query.operationName,
statusCode: nil, // We don't have access to status code here
requestId: requestId,
startTime: startTime
)

if let errors = result.errors {
resultHandler(.failure(GraphQLAPIAdapterError(error: ApolloError(errors: errors))))
let error = GraphQLAPIAdapterError(error: ApolloError(errors: errors))
self.networkTracer?.logAndTrackError(
url: self.url.absoluteString,
operationName: Query.operationName,
error: error,
requestId: requestId
)
resultHandler(.failure(error))
} else if let data = result.data {
resultHandler(.success(data))
} else {
assertionFailure("Did not receive no data nor errors")
}
case .failure(let error):
resultHandler(.failure(GraphQLAPIAdapterError(error: error)))
case let .failure(error):
let adaptedError = GraphQLAPIAdapterError(error: error)
self.networkTracer?.logAndTrackError(
url: self.url.absoluteString,
operationName: Query.operationName,
error: adaptedError,
requestId: requestId
)
resultHandler(.failure(adaptedError))
}
}
}
Expand All @@ -92,24 +137,62 @@ public final class GraphQLAPIAdapter: GraphQLAPIAdapterProtocol {
context: RequestHeaders?,
queue: DispatchQueue,
resultHandler: @escaping (Result<Mutation.Data, GraphQLAPIAdapterError>) -> Void
) -> Cancellable where Mutation : GraphQLMutation {
apollo.perform(
) -> Cancellable where Mutation: GraphQLMutation {
let requestId = UUID().uuidString
let startTime = Date()

// Log and track request
networkTracer?.logAndTrackRequest(
url: url.absoluteString,
operationName: Mutation.operationName,
query: Mutation.definition?.queryDocument ?? "",
variables: mutation.__variables,
headers: context?.additionalHeaders,
requestId: requestId
)

return apollo.perform(
mutation: mutation,
publishResultToStore: false,
context: context,
queue: queue
) { result in
) { [weak self] result in
guard let self = self else { return }

switch result {
case .success(let result):
case let .success(result):
// Log and track response
self.networkTracer?.logAndTrackResponse(
url: self.url.absoluteString,
operationName: Mutation.operationName,
statusCode: nil, // We don't have access to status code here
requestId: requestId,
startTime: startTime
)

if let errors = result.errors {
resultHandler(.failure(GraphQLAPIAdapterError(error: ApolloError(errors: errors))))
let error = GraphQLAPIAdapterError(error: ApolloError(errors: errors))
self.networkTracer?.logAndTrackError(
url: self.url.absoluteString,
operationName: Mutation.operationName,
error: error,
requestId: requestId
)
resultHandler(.failure(error))
} else if let data = result.data {
resultHandler(.success(data))
} else {
assertionFailure("Did not receive no data nor errors")
}
case .failure(let error):
resultHandler(.failure(GraphQLAPIAdapterError(error: error)))
let adaptedError = GraphQLAPIAdapterError(error: error)
self.networkTracer?.logAndTrackError(
url: self.url.absoluteString,
operationName: Mutation.operationName,
error: adaptedError,
requestId: requestId
)
resultHandler(.failure(adaptedError))
}
}
}
Expand Down Expand Up @@ -159,5 +242,3 @@ private struct RequestHeaderInterceptor: ApolloInterceptor {
chain.proceedAsync(request: request, response: response, interceptor: self, completion: completion)
}
}