Base64 decoding failed for \ "ZKgdjfk......... in Google Cloud speech API - api

Question

My request.sh code:
#!/bin/bash
# Copyright 2017 Google Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Create a request file with our JSON request in the current directory
FILENAME="request-"`date +"%s".json`
cat <<EOF > $FILENAME
{
"config": {
"encoding":"FLAC",
"sampleRateHertz":16000,
"profanityFilter": true,
"languageCode": "en-US",
"speechContexts": {
"phrases": ['']
},
"maxAlternatives": 1
},
"audio": {
"content":
}
}
EOF
# Update the languageCode parameter if one was supplied
if [ $# -eq 1 ]
then
sed -i 'audio.base64' -e "s/en-US/$1/g" $FILENAME
fi
# Record an audio file, base64 encode it, and update our request object
read -p "Press enter when you're ready to record" rec
if [ -z $rec ]; then
rec --channels=1 --bits=16 --rate=16000 audio.flac trim 0 3
echo \"`base64 audio.flac`\" > audio.base64
sed -i 'audio.base64' -e '/ "content":/r audio.base64' $FILENAME
fi
echo Request "file" $FILENAME created:
head -7 $FILENAME # Don't print the entire file because there's a giant base64 string
echo $'\t"Your base64 string..."\n\x00\x00}\n}'
# Call the speech API (requires an API key)
read -p $'\nPress enter when you\'re ready to call the Speech API' var
if [ -z $var ];
then
echo "Running the following curl command:"
echo "curl -s -X POST -H 'Content-Type: application/json' --data-binary #${FILENAME} https://speech.googleapis.com/v1/speech:recognize?key=API_KEY"
curl -s -X POST -H "Content-Type: application/json" --data-binary #${FILENAME} https://speech.googleapis.com/v1/speech:recognize?key=MY_API_KEY
fi
I am getting the error
{
"error": {
"code": 400,
"message": "Invalid value at 'audio.content' (TYPE_BYTES), Base64 decoding failed for \"ZkxhQwAAACAAA....\"",
"status": "INVALID_ARGUMENT",
"details": [
{
"#type": "type.googleapis.com/google.rpc.BadRequest",
"fieldViolations": [
{
"field": "audio.content",
"description": "Invalid value at 'audio.content' (TYPE_BYTES), Base64 decoding failed for \"Zkxh...
When I executed request.sh bash file, the above error rises.
How can I solve this error? or Does anyone else have a problem like me?

Answer 1

Looks like you'v tried the code from Sara Robinson on Hakernoon too.
I had the same problem and this post from ZodiacLeo123 helped me.
You have to add the the "-w" flag
base64 -w 0 audio.flac
This removes extra new lines.