evernote-sdk-patterns

# Evernote SDK Patterns ## Overview Production-ready patterns for working with the Evernote SDK, including search with NoteFilter, pagination, attachments, tags, error handling wrappers, and batch operations with rate limit handling. ## Prerequisites - Completed `evernote-install-auth` and `evernote-hello-world` - Understanding of Evernote data model (Notes, Notebooks, Tags, Resources) - Familiarity with async/await and Promises ## Instructions ### Pattern 1: Search with NoteFilter Use `NoteFilter` for query terms and sort order, paired with `NotesMetadataResultSpec` to select returned fields. This avoids fetching full note content when only metadata is needed. ```javascript const filter = new Evernote.NoteStore.NoteFilter({ words: 'tag:important notebook:Work', ascending: false, order: Evernote.Types.NoteSortOrder.UPDATED }); const spec = new Evernote.NoteStore.NotesMetadataResultSpec({ includeTitle: true, includeUpdated: true, includeTagGuids: true, includeNotebookGuid: true }); const result = await noteStore.findNotesMetadata(filter, 0, 100, spec); ``` ### Pattern 2: Creating Notes with Attachments Compute the MD5 hash of the file buffer, create a `Resource` with the binary data and MIME type, embed it in ENML with `<en-media type="..." hash="..."/>`, and attach it to the note. ```javascript const hash = crypto.createHash('md5').update(fileBuffer).digest('hex'); const resource = new Evernote.Types.Resource(); resource.data = new Evernote.Types.Data(); ...