TypeScript

GET

const example = async () => {
  const response = await fetch('<YOUR ENDPOINT URL>', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Accept: 'application/json',
      apiKey: '<YOURTOKEN>',
    },
    body: JSON.stringify({
      options: {
        method: 'GET',
        headers: {
          'Content-Type': 'application/json',
          Accept: 'application/json',
        },
      },
      url: '/rest/api/3/issue/DEV-16',
    }),
  });
  const responseJira = await response.text();
  console.log('response', JSON.stringify(JSON.parse(responseJira), null, 2));
};

example();

POST

const example = async () => {
  const response = await fetch('<YOUR ENDPOINT URL>', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Accept: 'application/json',
      apiKey: '<YOURTOKEN>',
    },
    body: JSON.stringify({
      options: {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          Accept: 'application/json',
        },
        body: {
          fields: {
            project: {
              name: '<your project name>',
            },
            summary: 'Create Issue via POST.',
            description: 'Creating of an issue via a POST request using the API Key Manager',
            issuetype: {
              id: '<your issue type id>',
            },
          },
        },
      },
      url: '/rest/api/2/issue',
    }),
  });
  const responseJira = await response.text();
  console.log('response', JSON.stringify(JSON.parse(responseJira), null, 2));
};

example();