Why is Postman giving me the error 'Cannot POST' for my routes in express app?-CodePudding

I am using Postman to test my function and am using POST to send the request. Every time I send it, I get the error: 'Cannot POST /translate'. I added the code below for my route and function:

 app.post('/translate'), async function(request, response) {
   const translatedText = await translateText(request)
   res.json(translatedText)
}

  async function translateText(request) {
    const text = request.body['text']
    const language = request.body['language']

    let [translations] = await translate.translate(text, language)
    translations = Array.isArray(translations) ? translations : [translations]
    return translations
  }

CodePudding user response：

You've misused the app.post method. First you create the url, as you have done, but then it requires a callback method inside the method parameters.

// remove ) after '/translate'
app.post('/translate', async function(request, response) {
   const translatedText = await translateText(request)
   res.json(translatedText)
});

from the express docs:

Route definition takes the following structure: app.METHOD(PATH, HANDLER) Where:

app is an instance of express.

METHOD is an HTTP request method, in lowercase.

PATH is a path on the server.

HANDLER is the function executed when the route is matched.