Web request performance monitoring

// Your original request
var request = URLRequest(url: URL(string: "https://api.example.com/data")!)
request.httpMethod = "GET"

// After OneAgent instrumentation, headers are automatically added:
// traceparent: 00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01
// tracestate: dt=...dynatrace-specific-data...

URLSession.shared.dataTask(with: request) { data, response, error in
    // Handle response
}.resume()

// Your original request
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://api.example.com/data"]];
request.HTTPMethod = @"GET";

// After OneAgent instrumentation, headers are automatically added:
// traceparent: 00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01
// tracestate: dt=...dynatrace-specific-data...

[[NSURLSession.sharedSession dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    // Handle response
}] resume];

var request = URLRequest(url: URL(string: "https://api.example.com/data")!)
request.httpMethod = "GET"

// Upstream trace context (e.g., from a web view or external SDK)
request.setValue("00-abcd1234abcd1234abcd1234abcd1234-1234abcd1234abcd-01", forHTTPHeaderField: "traceparent")
request.setValue("vendorA=some-data", forHTTPHeaderField: "tracestate")

// After OneAgent instrumentation:
// traceparent: 00-abcd1234abcd1234abcd1234abcd1234-1234abcd1234abcd-01 (preserved)
// tracestate: dt=...,vendorA=some-data (Dynatrace data prepended)

URLSession.shared.dataTask(with: request) { data, response, error in
    // Handle response
}.resume()

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://api.example.com/data"]];
request.HTTPMethod = @"GET";

// Upstream trace context (e.g., from a web view or external SDK)
[request setValue:@"00-abcd1234abcd1234abcd1234abcd1234-1234abcd1234abcd-01" forHTTPHeaderField:@"traceparent"];
[request setValue:@"vendorA=some-data" forHTTPHeaderField:@"tracestate"];

// After OneAgent instrumentation:
// traceparent: 00-abcd1234abcd1234abcd1234abcd1234-1234abcd1234abcd-01 (preserved)
// tracestate: dt=...,vendorA=some-data (Dynatrace data prepended)

[[NSURLSession.sharedSession dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    // Handle response
}] resume];

var request = URLRequest(url: URL(string: "https://api.example.com/data")!)
request.httpMethod = "GET"

// Invalid traceparent format
request.setValue("invalid-format-here", forHTTPHeaderField: "traceparent")

// After OneAgent instrumentation:
// Headers remain unchanged---no traceparent or tracestate modifications

URLSession.shared.dataTask(with: request) { data, response, error in
    // Handle response
}.resume()

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://api.example.com/data"]];
request.HTTPMethod = @"GET";

// Invalid traceparent format
[request setValue:@"invalid-format-here" forHTTPHeaderField:@"traceparent"];

// After OneAgent instrumentation:
// Headers remain unchanged---no traceparent or tracestate modifications

[[NSURLSession.sharedSession dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
    // Handle response
}] resume];

import Dynatrace

var request = URLRequest(url: URL(string: "https://api.example.com/data")!)

// Read existing headers (if any)
let existingTraceparent = request.value(forHTTPHeaderField: "traceparent")
let existingTracestate = request.value(forHTTPHeaderField: "tracestate")

// Generate/enrich trace context
if let ctx = Dynatrace.generateTraceContext(existingTraceparent, tracestate: existingTracestate) {
    request.setValue(ctx.traceparent, forHTTPHeaderField: "traceparent")
    request.setValue(ctx.tracestate, forHTTPHeaderField: "tracestate")
} else {
    // No changes should be applied when context can't be created (for example, invalid traceparent)
}

@import Dynatrace;

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"https://api.example.com/data"]];

// Read existing headers (if any)
NSString *existingTraceparent = [request valueForHTTPHeaderField:@"traceparent"];
NSString *existingTracestate = [request valueForHTTPHeaderField:@"tracestate"];

// Generate/enrich trace context
DTXTraceContext *ctx = [Dynatrace generateTraceContext:existingTraceparent tracestate:existingTracestate];
if (ctx) {
    [request setValue:ctx.traceparent forHTTPHeaderField:@"traceparent"];
    [request setValue:ctx.tracestate forHTTPHeaderField:@"tracestate"];
} else {
    // No changes should be applied when context can't be created (for example, invalid traceparent)
}

import Dynatrace

// Create the request data with the URL and HTTP method
let requestData = DTXHttpRequestEventData(url: "https://api.example.com/data", method: "GET")
    .withDuration(250)          // Duration in milliseconds
    .withStatusCode(200)        // HTTP status code
    .withBytesSent(128)         // Bytes sent
    .withBytesReceived(4096)    // Bytes received

// Send the web request event
Dynatrace.sendHttpRequestEvent(requestData)

@import Dynatrace;

// Create the request data with the URL and HTTP method
DTXHttpRequestEventData *requestData = [[[[[[[DTXHttpRequestEventData alloc]
    initWithURL:@"https://api.example.com/data" method:@"GET"]
    withDuration:@250]         // Duration in milliseconds
    withStatusCode:@200]       // HTTP status code
    withBytesSent:@128]        // Bytes sent
    withBytesReceived:@4096];  // Bytes received

// Send the web request event
[Dynatrace sendHttpRequestEvent:requestData];

let requestData = DTXHttpRequestEventData(url: "https://api.example.com/data", method: "POST")
    .withDuration(1500)
    .withError(error as NSError)

Dynatrace.sendHttpRequestEvent(requestData)

DTXHttpRequestEventData *requestData = [[[[DTXHttpRequestEventData alloc]
    initWithURL:@"https://api.example.com/data" method:@"POST"]
    withDuration:@1500]
    withError:error];

[Dynatrace sendHttpRequestEvent:requestData];

// Report the event with the traceparent
let requestData = DTXHttpRequestEventData(url: url, method: "GET")
    .withDuration(duration)
    .withStatusCode(statusCode)
    .withTraceparentHeader(traceparent)

Dynatrace.sendHttpRequestEvent(requestData)

// Report the event with the traceparent
DTXHttpRequestEventData *requestData = [[[[[DTXHttpRequestEventData alloc]
    initWithURL:url method:@"GET"]
    withDuration:duration]
    withStatusCode:statusCode]
    withTraceparentHeader:traceparent];

[Dynatrace sendHttpRequestEvent:requestData];

let requestData = DTXHttpRequestEventData(url: url, method: "POST")
    .withDuration(300)
    .withStatusCode(201)
    .addEventProperty("event_properties.api_version", value: "v2")
    .addEventProperty("event_properties.endpoint", value: "users")

Dynatrace.sendHttpRequestEvent(requestData)

DTXHttpRequestEventData *requestData = [[[[[[DTXHttpRequestEventData alloc]
    initWithURL:url method:@"POST"]
    withDuration:@300]
    withStatusCode:@201]
    addEventProperty:@"event_properties.api_version" value:@"v2"]
    addEventProperty:@"event_properties.endpoint" value:@"users"];

[Dynatrace sendHttpRequestEvent:requestData];

let subscriber = Dynatrace.addHttpEventModifier { event, context in
    // Access request details from the context
    if let request = context?.request {
        // Add custom headers or request info as properties
        if let customHeader = request.value(forHTTPHeaderField: "X-Custom-Header") {
            event.fields["event_properties.custom_header"] = customHeader
        }
    }

    // Access response details
    if let httpResponse = context?.response as? HTTPURLResponse {
        if let serverTiming = httpResponse.value(forHTTPHeaderField: "Server-Timing") {
            event.fields["event_properties.server_timing"] = serverTiming
        }
    }

    // Return the modified event (or nil to drop it)
    return event
}

DTXModifyEventSubscriber *subscriber = [Dynatrace addHttpEventModifier:^DTXModifyableEvent *(DTXModifyableEvent *event, DTXHttpRequestEventContext *context) {
    // Access request details from the context
    if (context.request) {
        // Add custom headers or request info as properties
        NSString *customHeader = [context.request valueForHTTPHeaderField:@"X-Custom-Header"];
        if (customHeader) {
            event.fields[@"event_properties.custom_header"] = customHeader;
        }
    }

    // Access response details
    if ([context.response isKindOfClass:[NSHTTPURLResponse class]]) {
        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)context.response;
        NSString *serverTiming = httpResponse.allHeaderFields[@"Server-Timing"];
        if (serverTiming) {
            event.fields[@"event_properties.server_timing"] = serverTiming;
        }
    }

    // Return the modified event (or nil to drop it)
    return event;
}];

Dynatrace.removeEventModifier(subscriber)

[Dynatrace removeEventModifier:subscriber];

let subscriber = Dynatrace.addHttpEventModifier { event, context in
    // Don't report requests to analytics endpoints
    if let url = context?.request.url?.absoluteString,
       url.contains("analytics.example.com") {
        return nil
    }
    return event
}

DTXModifyEventSubscriber *subscriber = [Dynatrace addHttpEventModifier:^DTXModifyableEvent *(DTXModifyableEvent *event, DTXHttpRequestEventContext *context) {
    // Don't report requests to analytics endpoints
    NSString *url = context.request.URL.absoluteString;
    if (url && [url containsString:@"analytics.example.com"]) {
        return nil;
    }
    return event;
}];