halton-iot-mcp
Version:
MCP Server for Halton IoT Data API
125 lines • 3.91 kB
JavaScript
/**
* Halton IoT API Client
* Handles HTTP communication with the Halton IoT Data API
*/
const API_BASE_URL = "https://api.halton.io/api/v2";
export class HaltonApiClient {
apiToken;
constructor(apiToken) {
this.apiToken = apiToken;
}
async request(endpoint, options = {}) {
const url = `${API_BASE_URL}${endpoint}`;
const headers = {
"Content-Type": "application/json",
Authorization: `Bearer ${this.apiToken}`,
...options.headers,
};
const response = await fetch(url, {
...options,
headers,
});
if (!response.ok) {
const errorText = await response.text();
throw new Error(`API request failed: ${response.status} ${response.statusText} - ${errorText}`);
}
const text = await response.text();
if (!text) {
return {};
}
try {
return JSON.parse(text);
}
catch {
// Some endpoints return plain text
return text;
}
}
// ============ Systems (Timeseries) ============
/**
* Get basic information about all accessible systems
*/
async getAllSystems() {
return this.request("/data/systems");
}
/**
* Get basic information about specified systems
*/
async getSystems(systems) {
return this.request("/data/systems", {
method: "POST",
body: JSON.stringify({ systems }),
});
}
// ============ System Variables ============
/**
* Retrieve a list of variables for specified systems
*/
async getSystemVariables(systems) {
return this.request("/data/systems/variables", {
method: "POST",
body: JSON.stringify({ systems }),
});
}
/**
* Search for variables with search words
*/
async searchSystemVariables(request, includeLastEventValues = false) {
const queryParams = includeLastEventValues
? "?includeLastEventValues=true"
: "";
return this.request(`/data/systems/variables/search${queryParams}`, {
method: "POST",
body: JSON.stringify(request),
});
}
// ============ Aggregate Series ============
/**
* Get aggregate series data for a single variable
*/
async getAggregateSeries(variable, request) {
return this.request(`/data/systems/variables/${encodeURIComponent(variable)}/aggregate`, {
method: "POST",
body: JSON.stringify(request),
});
}
/**
* Get aggregate series data for multiple variables
*/
async getAggregateSeriesMultiple(request) {
return this.request("/data/systems/variables/aggregate", {
method: "POST",
body: JSON.stringify(request),
});
}
// ============ Last Event Values ============
/**
* Get last event data for a single variable
*/
async getLastEventValue(variable, systems) {
return this.request(`/data/systems/variables/${encodeURIComponent(variable)}/lastEventValue`, {
method: "POST",
body: JSON.stringify({ systems }),
});
}
/**
* Get last event data for multiple variables
*/
async getLastEventValueMultiple(request) {
return this.request("/data/systems/variables/lastEventValue", {
method: "POST",
body: JSON.stringify(request),
});
}
// ============ Raw Events ============
/**
* Get raw events for a variable
*/
async getRawEvents(variable, request) {
return this.request(`/data/systems/variables/${encodeURIComponent(variable)}/rawEvents`, {
method: "POST",
body: JSON.stringify(request),
});
}
}
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