Loop through multiple cURL api request body parameters using Bash script - bash

Question

I want to convert multiple audio files to text using Google Cloud's Speech Recognize API.
I successfully transcribed one audio file called '1.flac'...
Request:
curl -s -H "Content-Type: application/json" \
-H "Authorization: Bearer ACCESSTOKEN" \
https://speech.googleapis.com/v1/speech:recognize \
-d '
{"config": {"languageCode": "pt-BR", "audioChannelCount": 2},"audio":{"uri": "gs://PROJECTID/1.flac"}}
'
Response:
{
"results": [
{
"alternatives": [
{
"transcript": "cat",
"confidence": 0.9999999
}
]
}
]
}
I successfully generated multiple lines for the data/body portion of the above request...
Request:
for i in 1 2 3
do
echo "{\"config\": {\"languageCode\": \"pt-BR\", \"audioChannelCount\": 2},\"audio\":{\"uri\": \"gs://PROJECTID/$i.flac\"}}"
done
Response:
{"config": {"languageCode": "pt-BR", "audioChannelCount": 2},"audio":{"uri": "gs://PROJECTID/1.flac"}}
{"config": {"languageCode": "pt-BR", "audioChannelCount": 2},"audio":{"uri": "gs://PROJECTID/2.flac"}}
{"config": {"languageCode": "pt-BR", "audioChannelCount": 2},"audio":{"uri": "gs://PROJECTID/3.flac"}}
How can I combine these two scripts, so that the curl API executes once for each of the three files, with one response like this:
{
"results": [
{
"alternatives": [
{
"transcript": "cat",
"confidence": 0.9999999
}
]
}
]
}
{
"results": [
{
"alternatives": [
{
"transcript": "dog",
"confidence": 0.9999999
}
]
}
]
}
{
"results": [
{
"alternatives": [
{
"transcript": "horse",
"confidence": 0.9999999
}
]
}
]
}

Answer 1

Your code is almost right.
for i in 1 2 3
do
curl -s -H "Content-Type: application/json" \
-H "Authorization: Bearer ACCESSTOKEN" \
-d '{"config": {"languageCode": "pt-BR", "audioChannelCount": 2}
,"audio":{"uri": "gs://PROJECTID/'$i'.flac"}}' \
https://speech.googleapis.com/v1/speech:recognize
done
I put URL at the end, because usually, options come before arguments
The value of -d is composed of 3 parts ['...'] [$i] ['...'] chained together. This allows the expansion of [$i]