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In the Inspector, log messages from the server were not being displayed.

Browse Source 
https://github.com/modelcontextprotocol/inspector/issues/184

The user who created the issue provided a python test server to send dummy messages, but I expected that the 'everything server' would be exercising this capability, but it wasn't. So I decided to add that functionality at the same time as fixing the inspector.

In src/everything/everything.ts
 - add logsUpdateInterval
 - use setInterval to send a random-leveled log message every 15 seconds
This commit is contained in:
cliffhall
2025-03-13 15:23:52 -04:00
parent f09e6743a3
commit 2ba960ca13
1 changed files with 23 additions and 8 deletions
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31
src/everything/everything.ts
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@@ -99,10 +99,11 @@ export const createServer = () => {
);
let subscriptions: Set<string> = new Set();
let updateInterval: NodeJS.Timeout | undefined;
let subsUpdateInterval: NodeJS.Timeout | undefined;
let logsUpdateInterval: NodeJS.Timeout | undefined;
// Set up update interval for subscribed resources
updateInterval = setInterval(() => {
subsUpdateInterval = setInterval(() => {
for (const uri of subscriptions) {
server.notification({
method: "notifications/resources/updated",
@@ -111,6 +112,21 @@ export const createServer = () => {
}
}, 5000);
// Set up update interval for random log messages
logsUpdateInterval = setInterval(() => {
const messages = [
{level: "info", data: "Information is good"},
{level: "warning", data: "Warning is scary"},
{level: "error", data: "Error is bad"},
]
server.notification({
method: "notifications/message",
params: messages[Math.floor(Math.random()*3)],
});
}, 15000);
// Helper method to request sampling from client
const requestSampling = async (
context: string,
@@ -451,7 +467,7 @@ export const createServer = () => {
if (name === ToolName.ANNOTATED_MESSAGE) {
const { messageType, includeImage } = AnnotatedMessageSchema.parse(args);
const content = [];
// Main message with different priorities/audiences based on type
@@ -511,7 +527,7 @@ export const createServer = () => {
if (!resourceId) return { completion: { values: [] } };
// Filter resource IDs that start with the input value
const values = EXAMPLE_COMPLETIONS.resourceId.filter(id =>
const values = EXAMPLE_COMPLETIONS.resourceId.filter(id =>
id.startsWith(argument.value)
);
return { completion: { values, hasMore: false, total: values.length } };
@@ -522,7 +538,7 @@ export const createServer = () => {
const completions = EXAMPLE_COMPLETIONS[argument.name as keyof typeof EXAMPLE_COMPLETIONS];
if (!completions) return { completion: { values: [] } };
const values = completions.filter(value =>
const values = completions.filter(value =>
value.startsWith(argument.value)
);
return { completion: { values, hasMore: false, total: values.length } };
@@ -548,9 +564,8 @@ export const createServer = () => {
});
const cleanup = async () => {
if (updateInterval) {
clearInterval(updateInterval);
}
if (subsUpdateInterval) clearInterval(subsUpdateInterval);
if (logsUpdateInterval) clearInterval(logsUpdateInterval);
};
return { server, cleanup };