Failing to replace a url with sed in shell - sed

Question

I'm having a bit of an issue with a shell script, replacing url in a json file with sed, with an url stored on a variable. The code is this:
sed -i "30s+.*+\"uri\":\"$MONGO_URI\",+" temp.json
To replace the MONGO_URI in the json:
{
...
"requestsDB": {
"uri": "MONGO_URI",
"password":"MONGO_PW",
"database": "temp-db"},
"mlAPI": {
"server": "..."}
...
}
#into
{
...
"requestsDB": {
"uri": "mongodb://admin:password#*****725/compose?authSource=admin?ssl=true?retryWrites=false",
"password":"MONGO_PW",
"database": "temp-db"},
"mlAPI": {
"server": "...}
...
}
But instead I'm getting this:
"uri" :"mongodb://admin:password#*****725/compose?authSource=admin "uri": "MONGO_URI",ssl=true "uri": "MONGO_URI",retryWrites=false",
Don't really know what's causing the issue, don't know if anybody can help?

Answer 1

As noted in the comments, using jq docs would be a much better solution to alter JSON
An example using JQ where the temp.json looks like this
{
"requestsDB":
{
"uri": "MONGO_URI",
"password": "MONGO_PW",
"database": "temp-db"
},
"mlAPI":
{
"server": "..."
}
}
We can use the following bash calls to alter the uri:
# Hardcoded URL
jq --arg MOGO_URI "Example URL" '.requestsDB.uri |= $MOGO_URI' temp.json
# If your new url is available through a bash var, you can use:
MOGO_URI='Example URL'
jq --arg MOGO_URI "$MOGO_URI" '.requestsDB.uri |= $MOGO_URI' temp.json
This will produce:
{
"requestsDB": {
"uri": "Example URL",
"password": "MONGO_PW",
"database": "temp-db"
},
"mlAPI": {
"server": "..."
}
}
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