# Download logs for a diagnostic signature Get the anonymized backtrace logs associated with a specific diagnostic signature. ## Discussion The example below requests a single disk write diagnostic log for a specific signature. ### Example Request and Response **Request:** ``` GET https://api.appstoreconnect.apple.com/v1/diagnosticSignatures/012a219872fe2aa3ca056df08dc9161007a26879a1c1475ca2e2712f7d0aefd7b4/logs?limit=1 ``` **Response:** ```json { "productData": [ { "signatureId": "012a219872fe2aa3ca056df08dc9161007a26879a1c1475ca2e2712f7d0aefd7b4", "diagnosticInsights": [ { "insightsURL": "doc://com.apple.documentation/documentation/xcode/reducing-disk-writes#Use-Appropriate-Indices", "insightsCategory": "SQLiteSpill", "insightsString": "SQLite spill file detected. Add appropriate index to improve performance." } ], "diagnosticLogs": [ { "diagnosticMetaData": { "event": "disk writes", "osVersion": "iPhone OS 14.6 (18F72)", "appVersion": "6.10.1", "writesCaused": "1073.76 MB", "deviceType": "iPhone13_3", "platformArchitecture": "arm64", "eventDetail": "Total of 1073.76 MB of disk writes" }, "callStackTree": [ { "callStacks": [ { "callStackRootFrames": [ { "offsetIntoBinaryTextSegment": "", "offsetIntoSymbol": "32", "symbolName": "_dispatch_call_block_and_release", "address": "0x19f7cda84", "binaryUUID": "DAF30062-4C85-3B92-B159-50602A0C9D96", "isBlameFrame": false, "binaryName": "libdispatch.dylib", "lineNumber": "1466", "sampleCount": 51, "fileName": "init.c", "rawFrame": "44 _dispatch_call_block_and_release (in libdispatch.dylib) + 32 (init.c:1466) [0x19f7cda84]", "subFrames": [ { "offsetIntoBinaryTextSegment": "", "offsetIntoSymbol": "112", "symbolName": "+[TaskHandler updateNames]", "address": "0x102f48b78", "binaryUUID": 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