// BwFileAccess.m #import "BwFileAccess.h" @implementation BwFileAccess RCT_EXPORT_MODULE() RCT_EXPORT_METHOD(readFileContent:(NSString *)filePath resolver:(RCTPromiseResolveBlock)resolve rejecter:(RCTPromiseRejectBlock)reject) { NSURL *fileURL = [NSURL URLWithString:filePath]; if ([fileURL startAccessingSecurityScopedResource]) { NSError *error; NSData *fileData = [NSData dataWithContentsOfURL:fileURL options:0 error:&error]; if (fileData) { NSString *fileContent = [[NSString alloc] initWithData:fileData encoding:NSUTF8StringEncoding]; resolve(fileContent); } else { reject(@"READ_ERROR", @"Failed to read file", error); } [fileURL stopAccessingSecurityScopedResource]; } else { reject(@"ACCESS_ERROR", @"Failed to access security scoped resource", nil); } } @end