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feat: allow parse message data as json #816

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merged 1 commit into from
Jan 24, 2023
Merged

feat: allow parse message data as json #816

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14 changes: 12 additions & 2 deletions nats/examples/nats-box/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,11 @@ enum Command {
#[structopt(name = "pub", about = "Publishes a message to a given subject")]
Pub { subject: String, msg: String },
#[structopt(name = "sub", about = "Subscribes to a given subject")]
Sub { subject: String },
Sub {
subject: String,
#[structopt(long, help = "parse message data as json")]
json: bool,
},
#[structopt(name = "request", about = "Sends a request and waits on reply")]
Request { subject: String, msg: String },
#[structopt(name = "reply", about = "Listens for requests and sends the reply")]
Expand Down Expand Up @@ -57,11 +61,17 @@ fn main() -> CliResult {
nc.publish(&subject, &msg)?;
println!("Published to '{subject}': '{msg}'");
}
Command::Sub { subject } => {
Command::Sub { subject, json } => {
let sub = nc.subscribe(&subject)?;
println!("Listening on '{subject}'");
for msg in sub.messages() {
println!("Received a {msg:?}");
if json {
match serde_json::from_slice::<serde_json::Value>(&msg.data) {
Ok(parsed_msg) => println!("{}", parsed_msg),
Err(e) => eprintln!("failed to parse as json: {e:?}"),
}
}
}
}
Command::Request { subject, msg } => {
Expand Down