Storage & RAG

entity User {
    name: text
    avatar: file           // Standard file storage
}

// File properties
user.avatar.name          // "profile.jpg"
user.avatar.size          // 1048576 (bytes)
user.avatar.size_formatted // "1 MB"
user.avatar.type          // "image/jpeg"
user.avatar.url           // "/files/abc123.jpg"

entity Document {
    title: text
    content: semantic file  // Auto-parsed, chunked, embedded
}

// Upload a PDF
doc = Document {
    title: "Company Report",
    content: uploaded_file
}
save doc

// Search with natural language
results = search "quarterly revenue" in Document by content

entity Manual {
    title: text
    content: semantic file
}

// Ask questions about your manuals
answer = ask "What is the return policy?" with context from Manual

// Answer includes sources
answer.text               // The generated answer
answer.sources            // Which documents were used
answer.sources[0].file    // Source file
answer.sources[0].page    // Page number
answer.sources[0].score   // Relevance score

entity Photo {
    image: file
    caption: text
}

selected_file = none

<input type="file"
       accept="image/*"
       change={selected_file = event.files[0]} />

<button click={
    if selected_file {
        save Photo {
            image: selected_file,
            caption: "My photo"
        }
    }
}>Upload</button>

files = []

<input type="file"
       multiple
       change={files = event.files} />

<button click={
    {for file in files}
        save Document { content: file, title: file.name }
    {/for}
}>Upload {files.len} files</button>

storage {
    // Default: local storage
    backend: "local"
    path: ".flindb/blobs"

    // Or use S3
    // backend: "s3"
    // bucket: "my-app-files"
}

upload {
    max_size: 100.mb
    allowed_types: ["image/*", "application/pdf"]
}

entity KBArticle {
    title: text
    content: semantic file
}

question = ""
answer = none
loading = false

fn askQuestion() {
    if question.len > 5 {
        loading = true
        answer = ask question with context from KBArticle {
            limit: 10,
            include_sources: true
        }
        loading = false
    }
}

<main>
    <input
        placeholder="Ask about your documents..."
        value={question}
        enter={askQuestion()} />

    <button click={askQuestion()} disabled={loading}>
        {if loading then "Thinking..." else "Ask"}
    </button>

    {if answer}
        <div class="answer">
            <p>{answer.text}</p>

            <h4>Sources</h4>
            {for source in answer.sources}
                <div class="source">
                    <span>{source.file.name}</span>
                    <span>Page {source.page}</span>
                    <span>{(source.score * 100).round()}% match</span>
                </div>
            {/for}
        </div>
    {/if}
</main>