import { createHttpClient } from '../utils/httpClient.js';
export interface CongressBill {
congress: number;
number: string;
originChamber: string;
originChamberCode: string;
title: string;
type: string;
updateDate: string;
url: string;
latestAction?: {
actionDate: string;
text: string;
};
}
export interface CongressGovSearchResult {
bills: CongressBill[];
pagination: {
count: number;
next: string;
};
}
export class CongressGovService {
private client;
private apiKey: string;
constructor(apiKey: string) {
if (!apiKey) {
throw new Error('Congress.gov API key is required');
}
this.apiKey = apiKey;
this.client = createHttpClient('https://api.congress.gov/v3');
}
/**
* Search bills in Congress.gov
* @param query Search query (optional, filters by title/text if supported, otherwise lists bills)
* @param congress Congress number (optional, defaults to current)
*/
async searchBills(congress?: number): Promise<CongressGovSearchResult> {
try {
const endpoint = congress ? `/bill/${congress}` : '/bill';
const response = await this.client.get(endpoint, {
params: {
api_key: this.apiKey,
format: 'json',
limit: 20
}
});
return response.data;
} catch (error: any) {
if (error.response?.status === 401) {
throw new Error('Invalid Congress.gov API key');
}
throw new Error(`Failed to search Congress.gov: ${error.message}`);
}
}
/**
* Get bill details
* @param congress Congress number
* @param type Bill type (e.g., hr, s)
* @param number Bill number
*/
async getBill(congress: number, type: string, number: string): Promise<any> {
try {
const response = await this.client.get(`/bill/${congress}/${type}/${number}`, {
params: {
api_key: this.apiKey,
format: 'json'
}
});
return response.data;
} catch (error: any) {
if (error.response?.status === 404) {
throw new Error(`Bill not found: ${congress}/${type}/${number}`);
}
throw new Error(`Failed to get bill details: ${error.message}`);
}
}
}
