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Merged
ogazboiz merged 1 commit into from
Feb 26, 2026
Merged

Frontend Integration: Fetch Dashboard Data from Backend API #177 #189

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70 changes: 69 additions & 1 deletion frontend/components/dashboard/dashboard-view.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -319,6 +319,8 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {

// --- Snapshot State (merged) ---
const [snapshot, setSnapshot] = React.useState<DashboardSnapshot | null>(null);
const [isSnapshotLoading, setIsSnapshotLoading] = React.useState(true);
const [snapshotError, setSnapshotError] = React.useState<string | null>(null);

// --- Helper Functions for missing logic ---
const safeLoadTemplates = (): StreamTemplate[] => {
Expand Down Expand Up @@ -362,6 +364,36 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {
persistTemplates(templates);
}, [templates, templatesHydrated]);

React.useEffect(() => {
let cancelled = false;

const loadSnapshot = async () => {
setIsSnapshotLoading(true);
setSnapshotError(null);

try {
const nextSnapshot = await fetchDashboardData(session.publicKey);
if (!cancelled) setSnapshot(nextSnapshot);
} catch (error) {
if (!cancelled) {
setSnapshot(null);
setSnapshotError(
error instanceof Error
? error.message
: "Failed to fetch dashboard data.",
);
}
} finally {
if (!cancelled) setIsSnapshotLoading(false);
}
};

void loadSnapshot();
return () => {
cancelled = true;
};
}, [session.publicKey]);

const updateStreamForm = (field: keyof StreamFormValues, value: string) => {
setStreamForm((previous) => ({ ...previous, [field]: value }));
setStreamFormMessage(null);
Expand Down Expand Up @@ -588,14 +620,50 @@ export function DashboardView({ session, onDisconnect }: DashboardViewProps) {

const renderContent = () => {
if (activeTab === "incoming") {
if (isSnapshotLoading) {
return (
<div className="dashboard-empty-state mt-8">
<h2>Loading streams...</h2>
<p>Fetching your incoming streams from the backend API.</p>
</div>
);
}

if (snapshotError) {
return (
<div className="dashboard-empty-state mt-8">
<h2>Could not load incoming streams</h2>
<p>{snapshotError}</p>
</div>
);
}

return (
<div className="mt-8">
<IncomingStreams />
<IncomingStreams streams={snapshot?.incomingStreams ?? []} />
</div>
);
}

if (activeTab === "overview") {
if (isSnapshotLoading) {
return (
<section className="dashboard-empty-state">
<h2>Loading dashboard...</h2>
<p>Fetching active and incoming streams from the backend API.</p>
</section>
);
}

if (snapshotError) {
return (
<section className="dashboard-empty-state">
<h2>Dashboard unavailable</h2>
<p>{snapshotError}</p>
</section>
);
}

if (!snapshot) {
return (
<section className="dashboard-empty-state">
Expand Down
154 changes: 73 additions & 81 deletions frontend/lib/dashboard.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -39,76 +39,71 @@ export interface DashboardAnalyticsMetric {
unavailableText: string;
}

const MOCK_STATS_BY_WALLET: Record<WalletId, DashboardSnapshot | null> = {
freighter: {
totalSent: 12850,
totalReceived: 4720,
totalValueLocked: 32140,
activeStreamsCount: 2,
streams: [
{
id: "stream-1",
date: "2023-10-25",
recipient: "G...ABCD",
amount: 500,
token: "USDC",
status: "Active",
deposited: 500,
withdrawn: 100,
},
{
id: "stream-2",
date: "2023-10-26",
recipient: "G...EFGH",
amount: 1200,
token: "XLM",
status: "Active",
deposited: 1200,
withdrawn: 300,
},
],
recentActivity: [
{
id: "act-1",
title: "Design Retainer",
description: "Outgoing stream settled",
amount: 250,
direction: "sent",
timestamp: "2026-02-19T13:10:00.000Z",
},
{
id: "act-2",
title: "Community Grant",
description: "Incoming stream payout",
amount: 420,
direction: "received",
timestamp: "2026-02-18T17:45:00.000Z",
},
{
id: "act-3",
title: "Developer Subscription",
description: "Outgoing recurring payment",
amount: 85,
direction: "sent",
timestamp: "2026-02-18T09:15:00.000Z",
},
],
},
};
const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || "http://localhost:3001/v1";
const STROOPS_DIVISOR = 1e7;

function toTokenAmount(raw: string): number {
return parseFloat(raw) / STROOPS_DIVISOR;
}

function shortenAddress(address: string): string {
if (!address || address.length < 10) return address;
return `${address.slice(0, 6)}...${address.slice(-4)}`;
}

function getStreamsEndpointCandidates(): string[] {
const baseUrl = (process.env.NEXT_PUBLIC_API_URL ?? "http://localhost:3001").replace(/\/+$/, "");
const candidates = new Set<string>();

if (baseUrl.endsWith("/api/v1") || baseUrl.endsWith("/v1")) {
candidates.add(`${baseUrl}/streams`);
} else if (baseUrl.endsWith("/api")) {
candidates.add(`${baseUrl}/v1/streams`);
candidates.add(`${baseUrl.replace(/\/api$/, "")}/v1/streams`);
} else {
candidates.add(`${baseUrl}/api/v1/streams`);
candidates.add(`${baseUrl}/v1/streams`);
}

return [...candidates];
}

async function fetchStreams(
publicKey: string,
role: "sender" | "recipient",
): Promise<BackendStream[]> {
const endpoints = getStreamsEndpointCandidates();
const params = new URLSearchParams({ [role]: publicKey });
let lastError: Error | null = null;

for (const endpoint of endpoints) {
const response = await fetch(`${endpoint}?${params.toString()}`);
if (response.ok) {
return (await response.json()) as BackendStream[];
}

if (response.status === 404) {
lastError = new Error(`Endpoint not found: ${endpoint}`);
continue;
}

lastError = new Error(`Failed to fetch streams (${response.status}) from ${endpoint}`);
}

throw lastError ?? new Error("Failed to fetch streams from backend.");
}

/**
* Maps a backend stream object to the frontend Stream interface.
*/
function mapBackendStreamToFrontend(s: BackendStream): Stream {
const deposited = parseFloat(s.depositedAmount) / 1e7; // Assuming 7 decimals for now, should ideally come from token config
const withdrawn = parseFloat(s.withdrawnAmount) / 1e7;
function mapBackendStreamToFrontend(s: BackendStream, counterparty: string): Stream {
const deposited = toTokenAmount(s.depositedAmount);
const withdrawn = toTokenAmount(s.withdrawnAmount);

return {
id: s.streamId.toString(),
recipient: s.recipient.slice(0, 4) + "..." + s.recipient.slice(-4),
recipient: shortenAddress(counterparty),
amount: deposited,
token: "TOKEN", // We don't have token symbols from backend yet
token: "TOKEN",
status: s.isActive ? "Active" : "Completed",
deposited,
withdrawn,
Expand All @@ -121,29 +116,26 @@ function mapBackendStreamToFrontend(s: BackendStream): Stream {
*/
export async function fetchDashboardData(publicKey: string): Promise<DashboardSnapshot> {
try {
const [outgoingRes, incomingRes] = await Promise.all([
fetch(`${API_BASE_URL}/streams?sender=${publicKey}`),
fetch(`${API_BASE_URL}/streams?recipient=${publicKey}`),
const [outgoing, incoming] = await Promise.all([
fetchStreams(publicKey, "sender"),
fetchStreams(publicKey, "recipient"),
]);

if (!outgoingRes.ok || !incomingRes.ok) {
throw new Error("Failed to fetch streams from backend.");
}

const outgoing: BackendStream[] = await outgoingRes.json();
const incoming: BackendStream[] = await incomingRes.json();

const outgoingStreams = outgoing.map(mapBackendStreamToFrontend);
const incomingStreams = incoming.map(mapBackendStreamToFrontend);
const outgoingStreams = outgoing.map((stream) =>
mapBackendStreamToFrontend(stream, stream.recipient),
);
const incomingStreams = incoming.map((stream) =>
mapBackendStreamToFrontend(stream, stream.sender),
);

// Aggregation logic
let totalSent = 0;
let totalValueLocked = 0;
let activeStreamsCount = 0;

outgoing.forEach(s => {
const dep = parseFloat(s.depositedAmount) / 1e7;
const withdr = parseFloat(s.withdrawnAmount) / 1e7;
const dep = toTokenAmount(s.depositedAmount);
const withdr = toTokenAmount(s.withdrawnAmount);
totalSent += withdr;
if (s.isActive) {
totalValueLocked += (dep - withdr);
Expand All @@ -153,24 +145,24 @@ export async function fetchDashboardData(publicKey: string): Promise<DashboardSn

let totalReceived = 0;
incoming.forEach(s => {
totalReceived += parseFloat(s.withdrawnAmount) / 1e7;
totalReceived += toTokenAmount(s.withdrawnAmount);
});

// Generate recent activity from streams (simplified for now)
const recentActivity: ActivityItem[] = [
...outgoing.map(s => ({
id: `act-out-${s.id}`,
title: "Outgoing Stream",
description: `Stream to ${s.recipient.slice(0, 6)}...`,
amount: parseFloat(s.depositedAmount) / 1e7,
description: `Stream to ${shortenAddress(s.recipient)}`,
amount: toTokenAmount(s.depositedAmount),
direction: "sent" as const,
timestamp: s.createdAt,
})),
...incoming.map(s => ({
id: `act-in-${s.id}`,
title: "Incoming Stream",
description: `Stream from ${s.sender.slice(0, 6)}...`,
amount: parseFloat(s.depositedAmount) / 1e7,
description: `Stream from ${shortenAddress(s.sender)}`,
amount: toTokenAmount(s.depositedAmount),
direction: "received" as const,
timestamp: s.createdAt,
})),
Expand Down
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