I am having trouble getting curl and Json (Node.js) to work when I in curl omit the "[ and ]" part of the JSON-RPC request params. I am using named parameters (i.e. an object, not an array).
This works:
curl -v -i POST -H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method":"registerPerson", "params": ["{\"username\":\"morten10\",\"password\":\"mypass\"}"], "id":1 }' \
http://localhost:3000
However, when I omit the [" and ]" from the params it doesn't work:
curl -v -i POST -H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method":"registerPerson", "params": {\"username\":\"morten10\",\"password\":\"mypass\"}, "id":1 }' \
http://localhost:3000
and Jayson gives this error message:
TypeError: First argument must be a string or Buffer
However, according to the JSON-RPC 2.0 specification and its examples, I should be able to exclude the "[ and ]" part from params when I use named parameters, as in this example:
--> {"jsonrpc": "2.0", "method": "subtract", "params": {"minuend": 42, "subtrahend": 23}, "id": 4}
<-- {"jsonrpc": "2.0", "result": 19, "id": 4}
What am I not getting?
Thanks!
I think your object needs to be a string as suggested by the error.
Try:
curl -v -i POST -H "Content-Type: application/json" \
-d '{"jsonrpc": "2.0", "method":"registerPerson", "params": "{\"username\":\"morten10\",\"password\":\"mypass\"}", "id":1 }' \
http://localhost:3000
Related
This question already has answers here:
Difference between single and double quotes in Bash
(7 answers)
Closed 1 year ago.
i want to store the output of curl command in a variable but not whole response only one value of that response
i have this curl command
curl -H "Authorization: Bearer $TOKEN" -X POST -H "content-type:application/json" \
-d '{
"name":"'"$ORG_NAME"'",
"displayName":"'"$ORG_DISPLAY_NAME"'",
"description":"'"$ORGANIZATION_DESCRIPTION"'",
"runtimeType":"'"$RUNTIMETYPE"'",
"analyticsRegion":"'"$ANALYTICS_REGION"'"
}' \
"https://apigee.googleapis.com/v1/organizations?parent=projects/$PROJECT_ID"
when i hit this command then it will show the response look like this
{
"name": "organizations/heloo/operations/keijfiejwfefekd",
"metadata": {
"#type": "type.googleapis.com/google.cloud.apigee.v1.OperationMetadata",
"operationType": "INSERT",
"targetResourceName": "organizations/heloo",
"state": "IN_PROGRESS"
}
}
so in the response i want to store this state value in a variable
test=$(curl -H "Authorization: Bearer $TOKEN" -X POST -H "content-type:application/json" \
-d '{
"name":"'"$ORG_NAME"'",
"displayName":"'"$ORG_DISPLAY_NAME"'",
"description":"'"$ORGANIZATION_DESCRIPTION"'",
"runtimeType":"'"$RUNTIMETYPE"'",
"analyticsRegion":"'"$ANALYTICS_REGION"'"
}' \
"https://apigee.googleapis.com/v1/organizations?parent=projects/$PROJECT_ID" | jq '.metadata.state')
it will work
I am trying to curl via bash script but unable to pass the value of var1 in curl request and getting error upon execution ...
#!/bin/bash
var1="some test message"
curl 'https://link' \
-H 'Content-Type: application/json' \
-d '
{"msgtype": "text",
"text": {
"content": $var1
}
}'
Your variable $var1 doesn't get expanded by the shell because it is inside single quote '.
You need to use double quote to let bash do the parameter expansion, and escape your json data:
#!/bin/bash
var1="some test message"
curl 'https://link' \
-H 'Content-Type: application/json' \
-d "
{
\"msgtype\": \"text\",
\"text\": {
\"content\": \"$var1\"
}
}"
Or you can use inline document (without the escaping hell, but the command becomes awkward):
#!/bin/bash
var1="some test message"
curl 'https://link' \
-H 'Content-Type: application/json' \
-d "$(cat <<EOT
{
"msgtype": "text",
"text": {
"content": "$var1"
}
}
EOT
)"
In general, don't use parameter expansion to define JSON dynamically like this. There is no guarantee that your template, combined with the contents of the variable, produces well-formed JSON. (This is for the same reasons you don't use string interpolation to create dynamic SQL queries.) Use a tool like jq instead.
curl 'https://link' ... \
-d "$(jq --argjson x "$var" \
-n '{msgtype: "text", text: {content: $x}}')"
Use below script.
https://aaa.com' -H 'Content-Type: application/json' -d '{"msgtype": "text", "text": { "content": '"'$var1'"' }}'
I'm following this documentation :
http://docs.couchdb.org/en/latest/cluster/setup.html#the-cluster-setup-api
The 11.1 part: The Cluster Setup API
I have 3 ubuntu machines with CouchDB and Curl installed, with the following ips :
192.168.219.138
192.168.219.139
192.168.219.140
First step, as the doc says, i'm entering the following commands on each of the 3 machines (admin password have been set.) :
> curl -X POST -H "Content-Type: application/json"
> http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action":
> "enable_cluster", "bind_address":"0.0.0.0", "username": "admin",
> "password":"password", "node_count":"3"}'
it says this on each machines :
{"ok":true}
Second step, i go on the 192.168.219.139 (setup coordination node) and try adding the nodes, so I'm entering theses commands, just like the doc is mentionning :
curl -X POST -H "Content-Type: application/json" http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action": "enable_cluster", "bind_address":"0.0.0.0", "username": "admin", "password":"password", "port": 15984, "node_count": "3", "remote_node": "192.168.219.138", "remote_current_user": "admin", "remote_current_password": "password" }'
curl -X POST -H "Content-Type: application/json" http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action": "add_node", "host":"192.168.219.138", "port": 5684, "username": "admin", "password":"password"}'
curl -X POST -H "Content-Type: application/json" http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action": "enable_cluster", "bind_address":"0.0.0.0", "username": "admin", "password":"password", "port": 15984, "node_count": "3", "remote_node": "192.168.219.140", "remote_current_user": "admin", "remote_current_password": "password" }'
curl -X POST -H "Content-Type: application/json" http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action": "add_node", "host":"192.168.219.140", "port": 5684, "username": "admin", "password":"password"}'
Then, i do this command to check if my cluster is ok :
curl http://admin:password#127.0.0.1:5984/_membership
And this is the answer, all the nodes are missing :
{
"all_nodes": [
"couchdb#localhost"
],
"cluster_nodes": [
"couchdb#192.168.219.138",
"couchdb#192.168.219.140",
"couchdb#locahost"
]
}
Please notice, the doc says I'm supposed to get this :
{
"all_nodes": [
"couchdb#couch1",
"couchdb#couch2",
"couchdb#couch3"
],
"cluster_nodes": [
"couchdb#couch1",
"couchdb#couch2",
"couchdb#couch3"
]
}
I guess my cluster is not functional, could you please tell me what am I doing wrong?
Thank you .
For example, then I go to the 192.168.219.139, add a new database called 'establishments' and nothing happens on both 2 others nodes !!
Not sure if this was a typo, but under second step, you have:
curl -X POST -H "Content-Type: application/json" http://admin:password#127.0.0.1:5984/_cluster_setup -d '{"action": "enable_cluster", "bind_address":"0.0.0.0", "username": "admin", "password":"password", "port": 15984, "node_count": "3", "remote_node": "192.168.219.138", "remote_current_user": "admin", "remote_current_password": "password" }'
Notice "port": 15984
But if that's not the issue, there could be a host of issues. The clustering operations happen over the erlang ports, so the different nodes will also have to speak over the EPMD port (4396) as well as a range of other ports, which you can restrict. Each node should have a configuration (e.g. in the vm.args file) with this erlang flag, -name couchdb#${node-ip-address|FQDN} as well as a cookie that the couch nodes use to speak with each other. Of course, depending on factors outside of what you shared, there could be other considerations as well.
I get a 400 Bad Request when issuing this entityTypes.create call:
wget --header="Authorization: Bearer ${TOKEN}" \
--post-data=' { "displayName": "writer1", "kind": "KIND_MAP", "autoExpansionMode": "AUTO_EXPANSION_MODE_DEFAULT", "entities": [ { "value": "Virginia Woolf", "synonyms": [ "Virginia Woolf" ] } }' \
https://dialogflow.googleapis.com/v2/projects/MyProject/agent/entityTypes
but this -- entityTypes.list -- works OK:
wget --header="Authorization: Bearer ${TOKEN}" \
https://dialogflow.googleapis.com/v2/projects/MyProject/agent/entityTypes
Any ideas? Thanks.
By default, --post-data uses a content-type of application/x-www-form-urlencoded. The API requires the content-type of application/json.
I tend to use something more like
wget \
--header="Authorization: Bearer ${TOKEN}" \
--header="Content-type: application/json" \
--post-data='{ ... }' \
https://dialogflow.googleapis.com/v2/projects/MyProject/agent/entityTypes
I found this.
And I wrote this variant:
#!/bin/bash
while read line ; do
headers="$headers -H '$line'"
done < public/headers.txt
echo $headers
curl -X PUT \
$headers \
-d #'public/example.json' \
echo.httpkit.com
In headers.txt I have:
X-PAYPAL-SECURITY-USERID:123
X-PAYPAL-SECURITY-PASSWORD:123
But when I run ./public/curl.sh I am not getting the headers I am sending.
I isolated the issue with an env var:
$ x='-H some:asd'
$ curl $x echo.httpkit.com
=> header was NOT present
$ curl -H 'some:asd' echo.httpkit.com
=> header was present
$ curl -H some:asd echo.httpkit.com
=> header was present
How can I correctly insert a variable in the header section?
Let's ask shellcheck:
In yourscript line 3:
headers="$headers -H '$line'"
^-- SC2089: Quotes/backslashes will be treated literally.
Use an array.
Ok, then let's do that:
#!/bin/bash
while read line ; do
headers=("${headers[#]}" -H "$line")
done < public/headers.txt
echo "${headers[#]}"
curl -X PUT \
"${headers[#]}" \
-d #'public/example.json' \
echo.httpkit.com
Result:
{
"method": "PUT",
"uri": "/",
"path": {
"name": "/",
"query": "",
"params": {}
},
"headers": {
"host": "echo.httpkit.com",
"user-agent": "curl/7.35.0",
"accept": "*/*",
"x-paypal-security-userid": "123", // <----- Yay!!
"x-paypal-security-password": "123",
"content-length": "32",
"content-type": "application/x-www-form-urlencoded"
},
"body": "\"This is text from example.json\"",
"ip": "127.0.0.1",
"powered-by": "http://httpkit.com",
"docs": "http://httpkit.com/echo"
}
If you don't want to put the HTTP headers on a command line (perhaps for security reasons), you can still have curl read them directly from a file.
curl -H #headerfile.txt https://www.google.com/ # requires curl >=7.55.0
If your curl is older than 7.55.0:
Use the option -K/--config <config file>, and put several -H/--header <header> lines in the text file.
For more details, please see my answer in the original article:
https://stackoverflow.com/a/48762561/5201675