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feat: add readServerResource() and listServerResources() api to App #470

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feat: add readServerResource() and listServerResources() api to App #470

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9 changes: 9 additions & 0 deletions examples/video-resource-server/mcp-app.html
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,15 @@
<div id="player" class="player" style="display: none;">
<video id="video" controls></video>
<p id="video-info" class="video-info"></p>
<button id="change-video-btn" class="change-btn">Change Video</button>
</div>

<div id="video-picker-container" class="picker-container" style="display: none;">
<h3>Available Videos</h3>
<select id="video-picker" class="video-picker">
<option value="">Select a video...</option>
</select>
<button id="load-video-btn" class="load-btn" disabled>Load Video</button>
</div>
</main>
<script type="module" src="/src/mcp-app.ts"></script>
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11 changes: 10 additions & 1 deletion examples/video-resource-server/server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -69,7 +69,16 @@ export function createServer(): McpServer {

server.registerResource(
"video",
new ResourceTemplate("videos://{id}", { list: undefined }),
new ResourceTemplate("videos://{id}", {
list: async () => ({
resources: Object.entries(VIDEO_LIBRARY).map(([id, video]) => ({
uri: `videos://${id}`,
name: `video-${id}`,
description: `Video: ${video.description}`,
mimeType: "video/mp4",
})),
}),
}),
{
description: "Video served via MCP resource (base64 blob)",
mimeType: "video/mp4",
Expand Down
88 changes: 86 additions & 2 deletions examples/video-resource-server/src/global.css
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Original file line number Diff line number Diff line change
@@ -1,10 +1,94 @@
:root {
color-scheme: light dark;

/*
* Fallbacks for host style variables used by this app.
* The host may provide these (and many more) via the host context.
*/
--color-text-primary: light-dark(#1f2937, #f3f4f6);
--color-text-inverse: light-dark(#f3f4f6, #1f2937);
--color-text-info: light-dark(#1d4ed8, #60a5fa);
--color-background-primary: light-dark(#ffffff, #1a1a1a);
--color-background-inverse: light-dark(#1a1a1a, #ffffff);
--color-background-info: light-dark(#eff6ff, #1e3a5f);
--color-ring-primary: light-dark(#3b82f6, #60a5fa);
--border-radius-md: 6px;
--border-width-regular: 1px;
--font-sans: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
--font-weight-normal: 400;
--font-weight-bold: 700;
--font-text-md-size: 1rem;
--font-text-md-line-height: 1.5;
--font-heading-3xl-size: 2.25rem;
--font-heading-3xl-line-height: 1.1;
--font-heading-2xl-size: 1.875rem;
--font-heading-2xl-line-height: 1.2;
--font-heading-xl-size: 1.5rem;
--font-heading-xl-line-height: 1.25;
--font-heading-lg-size: 1.25rem;
--font-heading-lg-line-height: 1.3;
--font-heading-md-size: 1rem;
--font-heading-md-line-height: 1.4;
--font-heading-sm-size: 0.875rem;
--font-heading-sm-line-height: 1.4;

/* Spacing derived from host typography */
--spacing-unit: var(--font-text-md-size);
--spacing-xs: calc(var(--spacing-unit) * 0.25);
--spacing-sm: calc(var(--spacing-unit) * 0.5);
--spacing-md: var(--spacing-unit);
--spacing-lg: calc(var(--spacing-unit) * 1.5);

/* App accent color (customize for your brand) */
--color-accent: #2563eb;
--color-text-on-accent: #ffffff;
}

* {
box-sizing: border-box;
}

html, body {
font-family: system-ui, -apple-system, sans-serif;
font-size: 1rem;
font-family: var(--font-sans);
font-size: var(--font-text-md-size);
font-weight: var(--font-weight-normal);
line-height: var(--font-text-md-line-height);
color: var(--color-text-primary);
margin: 0;
padding: 0;
}

h1 {
font-size: var(--font-heading-3xl-size);
line-height: var(--font-heading-3xl-line-height);
}
h2 {
font-size: var(--font-heading-2xl-size);
line-height: var(--font-heading-2xl-line-height);
}
h3 {
font-size: var(--font-heading-xl-size);
line-height: var(--font-heading-xl-line-height);
}
h4 {
font-size: var(--font-heading-lg-size);
line-height: var(--font-heading-lg-line-height);
}
h5 {
font-size: var(--font-heading-md-size);
line-height: var(--font-heading-md-line-height);
}
h6 {
font-size: var(--font-heading-sm-size);
line-height: var(--font-heading-sm-line-height);
}

code, pre, kbd {
font-family: var(--font-mono);
font-size: 1em;
}

b, strong {
font-weight: var(--font-weight-bold);
}
85 changes: 74 additions & 11 deletions examples/video-resource-server/src/mcp-app.css
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Original file line number Diff line number Diff line change
Expand Up @@ -8,16 +8,16 @@
flex-direction: column;
align-items: center;
justify-content: center;
padding: 2rem;
gap: 1rem;
color: #6b7280;
padding: var(--spacing-lg);
gap: var(--spacing-md);
color: var(--color-text-info);
}

.spinner {
width: 48px;
height: 48px;
border: 4px solid #e5e7eb;
border-top-color: #3b82f6;
border: 4px solid color-mix(in srgb, var(--color-text-primary) 20%, transparent);
border-top-color: var(--color-accent);
border-radius: 50%;
animation: spin 1s linear infinite;
}
Expand All @@ -27,13 +27,13 @@
}

.error {
padding: 1rem;
padding: var(--spacing-md);
color: #dc2626;
}

.error-title {
font-weight: 600;
margin: 0 0 0.5rem 0;
font-weight: var(--font-weight-bold);
margin: 0 0 var(--spacing-sm) 0;
}

.error p {
Expand All @@ -43,12 +43,75 @@
.player video {
width: 100%;
max-height: 480px;
border-radius: 8px;
border-radius: var(--border-radius-md);
background-color: #000;
}

.video-info {
margin-top: 0.5rem;
margin-top: var(--spacing-sm);
font-size: 0.875rem;
color: #6b7280;
color: var(--color-text-info);
}

.picker-container {
padding: var(--spacing-md);
}

.picker-container h3 {
margin: 0 0 var(--spacing-md) 0;
font-size: var(--font-heading-lg-size);
font-weight: var(--font-weight-bold);
}

.video-picker {
width: 100%;
padding: var(--spacing-sm);
font-size: var(--font-text-md-size);
border: var(--border-width-regular) solid color-mix(in srgb, var(--color-text-primary) 20%, transparent);
border-radius: var(--border-radius-md);
margin-bottom: var(--spacing-md);
background-color: var(--color-background-primary);
color: var(--color-text-primary);
font-family: var(--font-sans);
}

@media (prefers-color-scheme: dark) {
.video-picker option {
background-color: var(--color-background-info);
color: var(--color-text-primary);
}
}

.load-btn,
.change-btn {
padding: var(--spacing-sm) var(--spacing-md);
font-size: var(--font-text-md-size);
font-weight: var(--font-weight-bold);
color: var(--color-text-on-accent);
background-color: var(--color-accent);
border: none;
border-radius: var(--border-radius-md);
cursor: pointer;
transition: background-color 0.2s;
}

.load-btn:hover:not(:disabled),
.change-btn:hover {
background-color: color-mix(in srgb, var(--color-accent) 85%, var(--color-background-inverse));
}

.load-btn:focus-visible,
.change-btn:focus-visible {
outline: calc(var(--border-width-regular) * 2) solid var(--color-ring-primary);
outline-offset: var(--border-width-regular);
}

.load-btn:disabled {
background-color: color-mix(in srgb, var(--color-text-primary) 40%, transparent);
cursor: not-allowed;
opacity: 0.6;
}

.change-btn {
margin-top: var(--spacing-md);
}
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