bash - 如何在 shell 脚本中的 curl 命令中传递变量

Question

我有一个 curl 命令：

curl -u ${USER_ID}:${PASSWORD} -X GET 'http://blah.gso.woo.com:8080/rest/job-execution/job-details/${job_id}'

该变量job_id中有一个值，例如 1160。当我在 shell 中执行 curl 命令时，它给了我以下错误：

{"message":"Sorry. An unexpected error occured.", "stacktrace":"Bad Request. The request could not be understood by the server due to malformed syntax."}

如果我直接在命令中传递数字'1160'，如下所示，curl命令有效。

curl -u ${USER_ID}:${PASSWORD} -X GET 'http://blah.gso.woo.com:8080/rest/job-execution/job-details/1160'

我希望能够在 curl 命令中传递变量的值。

Answer 1

在shell中使用变量时，只能使用双引号，不能使用单引号：单引号内的变量不展开。了解 ' 和 " 和 ` 之间的区别。参见http://mywiki.wooledge.org/Quotes和http://wiki.bash-hackers.org/syntax/words

Answer 2

我在传递时也遇到了这个问题，它是通过使用'“$1”'解决的

请参阅下面的connection.uri

curl -X POST -H "Content-Type: application/json" --data '
  {"name": "mysql-atlas-sink",
   "config": {
     "connector.class":"com.mongodb.kafka.connect.MongoSinkConnector",
     "tasks.max":"1",
     "topics":"mysqlstock.Stocks.StockData",
     "connection.uri":"'"$1"'",
     "database":"Stocks",
     "collection":"StockData",
     "key.converter":"io.confluent.connect.avro.AvroConverter",
     "key.converter.schema.registry.url":"http://schema-registry:8081",
     "value.converter":"io.confluent.connect.avro.AvroConverter",
     "value.converter.schema.registry.url":"http://schema-registry:8081",
     "transforms": "ExtractField",
     "transforms.ExtractField.type":"org.apache.kafka.connect.transforms.ExtractField$Value",
     "transforms.ExtractField.field":"after"
}}' http://localhost:8083/connectors -w "\n"

Answer 3

如何使用shell变量将json传递给curl：

myvar=foobar
curl -H "Content-Type: application/json" --data @/dev/stdin<<EOF
{ "xkey": "$myvar" }
EOF

使用 switch-d或--data，POST请求是隐式的

Answer 4

userdetails="$username:$apppassword"
base_url_part='https://api.XXX.org/2.0/repositories'
path="/$teamName/$repoName/downloads/$filename"
base_url="$base_url_part$path"**strong text**
curl  -L -u "$userdetails" "$base_url" -o "$downloadfilename"