Post JSON
Send a POST request with JSON data. Use to share data with external servers.
export default { async fetch(request) { /** * Example someHost is set up to take in a JSON request * Replace url with the host you wish to send requests to * @param {string} url the URL to send the request to * @param {BodyInit} body the JSON data to send in the request */ const someHost = "https://examples.cloudflareworkers.com/demos"; const url = someHost + "/requests/json"; const body = { results: ["default data to send"], errors: null, msg: "I sent this to the fetch", };
/** * 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()); } else if (contentType.includes("application/text")) { return response.text();
} else if (contentType.includes("text/html")) { return response.text(); } else { return response.text(); } }
const init = { body: JSON.stringify(body), method: "POST", 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 { async fetch(request): Promise<Response> { /** * Example someHost is set up to take in a JSON request * Replace url with the host you wish to send requests to * @param {string} url the URL to send the request to * @param {BodyInit} body the JSON data to send in the request */ const someHost = "https://examples.cloudflareworkers.com/demos"; const url = someHost + "/requests/json"; const body = { results: ["default data to send"], errors: null, msg: "I sent this to the fetch", };
/** * 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()); } else if (contentType.includes("application/text")) { return response.text(); } else if (contentType.includes("text/html")) { return response.text(); } else { return response.text(); } }
const init = { body: JSON.stringify(body), method: "POST", headers: { "content-type": "application/json;charset=UTF-8", }, }; const response = await fetch(url, init); const results = await gatherResponse(response); return new Response(results, init); },
} satisfies ExportedHandler;
import jsonfrom pyodide.ffi import to_js as _to_jsfrom js import Object, fetch, Response, Headers
def to_js(obj): return _to_js(obj, dict_converter=Object.fromEntries)
# gather_response returns both content-type & response body as a string
async def gather_response(response): headers = response.headers content_type = headers["content-type"] or ""
if "application/json" in content_type: return (content_type, json.dumps(dict(await response.json()))) return (content_type, await response.text())
async def on_fetch(_request): url = "https://jsonplaceholder.typicode.com/todos/1"
body = { "results": ["default data to send"], "errors": None, "msg": "I sent this to the fetch", }
options = { "body": json.dumps(body), "method": "POST", "headers": { "content-type": "application/json;charset=UTF-8", }, }
response = await fetch(url, to_js(options)) content_type, result = await gather_response(response)
headers = Headers.new({"content-type": content_type}.items()) return Response.new(result, headers=headers)