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Added more JPL APIs
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8 files changed

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‎src/handlers/jpl/cad.ts

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import axios from 'axios';
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import { addResource } from '../../index.js';
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/**
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* Handler for JPL SB Close Approach (CAD) API
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*
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* This API provides data about asteroid and comet close approaches to planets
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* in the past and future.
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*
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* @param args Request parameters
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* @returns API response
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*/
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export async function cadHandler(args: Record<string, any>) {
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try {
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// Base URL for the CAD API
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const baseUrl = 'https://ssd-api.jpl.nasa.gov/cad.api';
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// Validate parameters if needed
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// Parameters are fairly flexible in this API, so minimal validation is needed
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// Make the API request
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const response = await axios.get(baseUrl, { params: args });
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const data = response.data;
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// Create a resource URI that represents this query
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let resourceUri: string;
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let resourceName: string;
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if (args.des) {
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// Query for a specific object
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resourceUri = `jpl://cad/object/${args.des}`;
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resourceName = `Close approaches for object ${args.des}`;
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} else if (args.spk) {
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// Query for a specific object by SPK-ID
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resourceUri = `jpl://cad/object/${args.spk}`;
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resourceName = `Close approaches for object ${args.spk}`;
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} else {
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// Query for close approaches with constraints
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const constraints = Object.entries(args)
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.map(([key, value]) => `${key}=${value}`)
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.join('&');
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resourceUri = `jpl://cad/list${constraints ? '?' + constraints : ''}`;
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// Create a readable name based on date range and body
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const dateMin = args['date-min'] || 'now';
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const dateMax = args['date-max'] || '+60';
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const body = args.body || 'Earth';
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resourceName = `Close approaches to ${body} from ${dateMin} to ${dateMax}`;
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}
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// Add response to resources
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addResource(resourceUri, {
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name: resourceName,
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mimeType: "application/json",
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text: JSON.stringify(data, null, 2)
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});
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// Format the response
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return {
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content: [{
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type: "text",
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text: JSON.stringify(data, null, 2)
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}]
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};
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} catch (error: any) {
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return {
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content: [{
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type: "text",
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text: `Error accessing JPL SB Close Approach API: ${error.message}`
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}],
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isError: true
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};
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}
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}
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// Export default for dynamic imports
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export default cadHandler;

‎src/handlers/jpl/horizons.ts

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import axios from 'axios';
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import { addResource } from '../../index.js';
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/**
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* Handler for JPL Horizons API
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*
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* This API provides ephemeris data for solar system objects (planets, moons, asteroids, comets, etc.).
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*
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* @param args Request parameters
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* @returns API response
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*/
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export async function horizonsHandler(args: Record<string, any>) {
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try {
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// Base URL for the Horizons API
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const baseUrl = 'https://ssd.jpl.nasa.gov/api/horizons.api';
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// Make the API request
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const response = await axios.get(baseUrl, { params: args });
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const data = response.data;
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// Create a resource URI that represents this query
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let resourceUri = 'jpl://horizons';
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let resourceName = 'JPL Horizons ephemeris data';
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// Customize resource name based on the request type
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if (args.COMMAND) {
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// Add the object identifier to the resource URI
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resourceUri += `/object/${encodeURIComponent(args.COMMAND)}`;
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// Update resource name based on EPHEM_TYPE
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if (args.EPHEM_TYPE === 'OBSERVER') {
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resourceName = `${args.COMMAND} observer ephemeris data`;
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} else if (args.EPHEM_TYPE === 'VECTORS') {
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resourceName = `${args.COMMAND} vector ephemeris data`;
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} else if (args.EPHEM_TYPE === 'ELEMENTS') {
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resourceName = `${args.COMMAND} orbital elements data`;
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} else {
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resourceName = `${args.COMMAND} ephemeris data`;
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}
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// Add time range info if available
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if (args.START_TIME && args.STOP_TIME) {
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resourceName += ` (${args.START_TIME} to ${args.STOP_TIME})`;
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}
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}
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// Add query parameters to the URI
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const queryParams = Object.entries(args)
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.filter(([key]) => key !== 'COMMAND' && key !== 'format')
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.map(([key, value]) => `${key}=${encodeURIComponent(String(value))}`)
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.join('&');
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if (queryParams) {
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resourceUri += `?${queryParams}`;
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}
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// Add response to resources
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addResource(resourceUri, {
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name: resourceName,
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mimeType: "application/json",
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text: JSON.stringify(data, null, 2)
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});
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// Format the response
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return {
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content: [{
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type: "text",
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text: JSON.stringify(data, null, 2)
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}]
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};
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} catch (error: any) {
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return {
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content: [{
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type: "text",
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text: `Error accessing JPL Horizons API: ${error.message}`
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}],
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isError: true
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};
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}
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}
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// Export default for dynamic imports
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export default horizonsHandler;

‎src/handlers/jpl/jd_cal.ts

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import axios from 'axios';
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import { addResource } from '../../index.js';
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/**
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* Handler for JPL Julian Date Calendar Conversion API
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*
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* This API converts between Julian dates and calendar dates (UTC)
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*
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* @param args Request parameters
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* @returns API response
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*/
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export async function jdCalHandler(args: Record<string, any>) {
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try {
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// Base URL for the JD Calendar API
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const baseUrl = 'https://ssd-api.jpl.nasa.gov/jd_cal.api';
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// Validate parameters
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if (!args.jd && !args.cd) {
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return {
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content: [{
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type: "text",
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text: "Error: Either a Julian date (jd) or calendar date (cd) must be provided."
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}],
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isError: true
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};
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}
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// Make the API request
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const response = await axios.get(baseUrl, { params: args });
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const data = response.data;
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// Add response to resources
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const resourceUri = `jpl://jd_cal/${args.jd || args.cd}`;
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addResource(resourceUri, {
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name: `Julian Date / Calendar Date Conversion: ${args.jd || args.cd}`,
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mimeType: "application/json",
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text: JSON.stringify(data, null, 2)
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});
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// Format the response
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return {
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content: [{
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type: "text",
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text: JSON.stringify(data, null, 2)
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}]
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};
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} catch (error: any) {
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return {
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content: [{
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type: "text",
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text: `Error accessing JPL Julian Date Calendar API: ${error.message}`
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}],
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isError: true
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};
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}
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}
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// Export default for dynamic imports
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export default jdCalHandler;

‎src/handlers/jpl/nhats.ts

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import axios from 'axios';
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import { addResource } from '../../index.js';
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/**
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* Handler for JPL NHATS API (Human-accessible NEOs data)
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*
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* This API provides data from the NASA/JPL NHATS database about Near-Earth Objects (NEOs)
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* that are potentially accessible by human missions.
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*
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* @param args Request parameters
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* @returns API response
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*/
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export async function nhatsHandler(args: Record<string, any>) {
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try {
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// Base URL for the NHATS API
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const baseUrl = 'https://ssd-api.jpl.nasa.gov/nhats.api';
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// Validate parameters if needed
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// Parameters are fairly flexible in this API, so minimal validation is needed
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// Make the API request
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const response = await axios.get(baseUrl, { params: args });
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const data = response.data;
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// Create a resource URI that represents this query
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let resourceUri: string;
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if (args.des) {
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// Object mode - query for a specific object
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resourceUri = `jpl://nhats/object/${args.des}`;
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} else if (args.spk) {
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// Object mode - query for a specific object by SPK-ID
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resourceUri = `jpl://nhats/object/${args.spk}`;
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} else {
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// Summary mode - query for a list of objects with constraints
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const constraints = Object.entries(args)
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.map(([key, value]) => `${key}=${value}`)
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.join('&');
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resourceUri = `jpl://nhats/summary${constraints ? '?' + constraints : ''}`;
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}
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// Add response to resources
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addResource(resourceUri, {
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name: args.des || args.spk
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? `NHATS data for object: ${args.des || args.spk}`
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: 'NHATS summary data',
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mimeType: "application/json",
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text: JSON.stringify(data, null, 2)
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});
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// Format the response
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return {
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content: [{
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type: "text",
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text: JSON.stringify(data, null, 2)
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}]
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};
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} catch (error: any) {
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return {
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content: [{
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type: "text",
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text: `Error accessing JPL NHATS API: ${error.message}`
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}],
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isError: true
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};
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}
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}
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// Export default for dynamic imports
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export default nhatsHandler;

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