Google Cloud Text-to-Speech returns "INVALID_ARGUMENT"

Question

I am trying Google Cloud's Text-to-Speech using REST. It works fine while using Google's API explorer.

But when I try to make a post call, it returns the following error (The API key I'm using has no restrictions):

{
  "error": {
    "code": 400,
    "message": "Invalid JSON payload received. Unknown name \"{\r\n \"audioConfig\": {\r\n  \"audioEncoding\": \"MP3\"\r\n },\r\n \"input\": {\r\n  \"text\": \"This is a text to speak\"\r\n },\r\n \"voice\": {\r\n  \"languageCode\": \"en-US\",\r\n  \"name\": \"en-US-Standard-B\"\r\n }\r\n}\": Cannot bind query parameter. Field '{\r\n \"audioConfig\": {\r\n  \"audioEncoding\": \"MP3\"\r\n },\r\n \"input\": {\r\n  \"text\": \"This is a text to speak\"\r\n },\r\n \"voice\": {\r\n  \"languageCode\": \"en-US\",\r\n  \"name\": \"en-US-Standard-B\"\r\n }\r\n}' could not be found in request message.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.BadRequest",
        "fieldViolations": [
          {
            "description": "Invalid JSON payload received. Unknown name \"{\r\n \"audioConfig\": {\r\n  \"audioEncoding\": \"MP3\"\r\n },\r\n \"input\": {\r\n  \"text\": \"This is a text to speak\"\r\n },\r\n \"voice\": {\r\n  \"languageCode\": \"en-US\",\r\n  \"name\": \"en-US-Standard-B\"\r\n }\r\n}\": Cannot bind query parameter. Field '{\r\n \"audioConfig\": {\r\n  \"audioEncoding\": \"MP3\"\r\n },\r\n \"input\": {\r\n  \"text\": \"This is a text to speak\"\r\n },\r\n \"voice\": {\r\n  \"languageCode\": \"en-US\",\r\n  \"name\": \"en-US-Standard-B\"\r\n }\r\n}' could not be found in request message."
          }
        ]
      }
    ]
  }
}

Request body:

{
 "audioConfig": {
  "audioEncoding": "MP3"
 },
 "input": {
  "text": "This is a text to speak"
 },
 "voice": {
  "languageCode": "en-US",
  "name": "en-US-Standard-B"
 }
}

Post link: https://texttospeech.googleapis.com/v1beta1/text:synthesize?fields=audioContent&key={MY_API_KEY}

F10 F10 · Accepted Answer · 2019-03-21T14:30:32

Based on this Text-to-Speech Quickstart

I successfully did the following POST request:

curl -X POST \
  -H "Content-Type: application/json; charset=utf-8" \
  --data "{
    'input':{
      'text':'This is a text to speak'
    },
    'voice':{
      'languageCode':'en-US',
      'name':'en-US-Standard-B'
    },
    'audioConfig':{
      'audioEncoding':'MP3'
    }
  }" "https://texttospeech.googleapis.com/v1/text:synthesize?key=MY_KEY" > synthesize-text.txt

Hope it helps.

Google Cloud Text-to-Speech returns "INVALID_ARGUMENT"

1 Answers