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Fetch JSON

Send a GET request and read in JSON from the response. Use to fetch external data.

export default {
async fetch(request, env, ctx) {
/**
* Example someHost is set up to take in a JSON request
* Replace url with the host you wish to send requests to
* @param {string} someHost the host to send the request to
* @param {string} url the URL to send the request to
*/
const someHost = "https://examples.cloudflareworkers.com/demos";
const url = someHost + "/static/json";
/**
* gatherResponse awaits and returns a response body as a string.
* Use await gatherResponse(..) in an async function to get the response body
* @param {Response} response
*/
async function gatherResponse(response) {
const { headers } = response;
const contentType = headers.get("content-type") || "";
if (contentType.includes("application/json")) {
return JSON.stringify(await response.json());
}
return response.text();
}
const init = {
headers: {
"content-type": "application/json;charset=UTF-8",
},
};
const response = await fetch(url, init);
const results = await gatherResponse(response);
return new Response(results, init);
},
};

const handler: ExportedHandler = {
async fetch(request, env, ctx) {
/**
* Example someHost is set up to take in a JSON request
* Replace url with the host you wish to send requests to
* @param {string} someHost the host to send the request to
* @param {string} url the URL to send the request to
*/
const someHost = "https://examples.cloudflareworkers.com/demos";
const url = someHost + "/static/json";
/**
* gatherResponse awaits and returns a response body as a string.
* Use await gatherResponse(..) in an async function to get the response body
* @param {Response} response
*/
async function gatherResponse(response) {
const { headers } = response;
const contentType = headers.get("content-type") || "";
if (contentType.includes("application/json")) {
return JSON.stringify(await response.json());
}
return response.text();
}
const init = {
headers: {
"content-type": "application/json;charset=UTF-8",
},
};
const response = await fetch(url, init);
const results = await gatherResponse(response);
return new Response(results, init);
},
};
export default handler;